Academic literature on the topic 'Publict transport demand'

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Journal articles on the topic "Publict transport demand"

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Mesarec, Beno, and Marjan Lep. "COMBINING THE GRID‐BASED SPATIAL PLANNING AND NETWORK‐BASED TRANSPORT PLANNING." Technological and Economic Development of Economy 15, no. 1 (March 31, 2009): 60–77. http://dx.doi.org/10.3846/1392-8619.2009.15.60-77.

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Border regions of EU countries are confronted with changes of spatial and economical development. The lack of border crossing strategic information system for regional planning purposes reflects in non‐intense cooperation in the field of regional development strategies harmonization. The article presents the methodology developed during Interreg III B project REDECON. Grid‐based database with GIS interface, merging socio‐economic, environmental and spatial data with vector‐based network accessibility data, what enable the public planning departments to analyze and simulate different policy measures concerning transport. The article is focused on the modifications of (during project REDECON) developed methodology, which enable besides cross‐border spatial analysis also analysis of current status of public transport demand and supply for finding the areas, where the supply of public transport services does not reach the demand for public transport services. It describes the methodology for selecting the main indicator thematic groups for different public transport demand types, the characterization (evaluation) of suitability of locations in respect to the balance between public transport supply and demand. At the end of the article the results of methodology application are presented on the regional pilot project concerning accessibility of pilot area, regional public transport demands and regional optimization of the public transport supply. Santrauka Aprašoma Redecon metodika, sukurta vykdant tarptautinio projekto Interreg III B metu. Tinklelinė duomenų bazė, paremta geografinėmis informacinėmis sistemomis, suvienijo socialinius ir ekonominius, aplinkosaugos, erdvinius ir vektorinius pasiekiamumo duomenis. Visa tai leido viešojo transporto planuotojams lengviau analizuoti ir modeliuoti transporta skirtingomis priemonėmis. Straipsnyje aprašomoji sukurtos metodikos modifikacija, padedanti nagrineti transporto sistemos paklausa, parodo, kuriose teritorijose viešojo transporto aprūpinimas nepakankamas ir pan. Pabaigoje svarstoma, kokiam regionui galima pritaikyti šią metodiką, to regiono viešojo transporto paklausą ir optimizavimą.
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Gits, Ivanna, Mykola Zhuk, and Halyna Pivtorak. "Analysis of demand for public transport service in Lviv city." Transport technologies 2020, no. 2 (November 9, 2020): 57–64. http://dx.doi.org/10.23939/tt2020.02.057.

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The demand for public transport on the example of Lviv city is analyzed in the paper. The aim of the trip, the duration of the trip, vehicle occupancy rate, walking approach to the stop, and the choice of public transport mode are determined as the main impact factors. The questioning of 1100 users of public transport is carried out. During the formation of transport strategy of public transport system functioning in large cities, it is necessary to consider such factors of functioning as optimal, from the view of transport provision, location of places of work and study, trips are up to 45 min; vehicle occupation rate is up to 80% (on the most routes); the walking distance is up to 600 m; vehicles of large capacity. The provision of these indicators in transport systems will provide an opportunity to increase the effectiveness and enlarge the demand for public transport services as a result of qualitative functioning.
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Pavlyuk, Dmitry, Nadežda Spiridovska, and Irina Yatskiv (Jackiva). "SPATIOTEMPORAL DYNAMICS OF PUBLIC TRANSPORT DEMAND: A CASE STUDY OF RIGA." Transport 35, no. 6 (January 6, 2021): 576–87. http://dx.doi.org/10.3846/transport.2020.14159.

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Sustainable urban mobility remains an emerging research topic during last decades. In recent years, the smart card data collection systems have become widespread and many studies have been focused on usage of anonymized data from these systems for better understanding of mobility patterns of Public Transport (PT) passengers. Data-driven mobility patterns can benefit transport planners at strategic, tactical, and operational levels. A particular point of interest is a spatiotemporal dynamics of mobility patterns that highlights transformation of the PT passenger flows over the time continuously or in response to modifications of the PT system and policies. This study is aimed to estimation and analysis of the spatiotemporal dynamics of PT passenger flows in Riga (Latvia). A multi-stage methodology was proposed and includes three main stages: (1) estimation of individual trip vectors, (2) clustering of trip vectors into spatiotemporal mobility patterns, and (3) further analysis of mobility patterns’ dynamics. The best practice methods are applied at every stage of the proposed methodology: the smart card validation flow is used for extracting information on boarding locations; the trip chain approach is used for estimation of individual trip destinations; vector-based clustering algorithms are utilised for identification of mobility patterns and discovering their dynamics. The resulting methodology provides an advanced tool for observing and managing of PT demand fluctuation on a daily basis. The methodology was applied for mining of a large smart card data set (124 million records) for year 2018. Most important empirical results include obtained daily mobility patterns in Riga, their clusters, and within-cluster dynamics over the year. Obtained daily mobility patterns allows estimation of a city-level PT origin–destination matrix that is useful in many applied areas, e.g., dynamic passenger flow assignment models. Mobility pattern-based clustering of days allows effective comparison and flexible tuning of the PT system for different days of a week, public holidays, extreme weather conditions, and large events. Dynamics of mobility patterns allows estimating the effect of implementing changes (e.g., fare increase or road maintenance) and demand forecasting for user-focused development of PT system.
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Nam, Kihwan, and Myungkeun Park. "IMPROVEMENT OF AN OPTIMAL BUS SCHEDULING MODEL BASED ON TRANSIT SMART CARD DATA IN SEOUL." Transport 33, no. 4 (December 5, 2018): 981–92. http://dx.doi.org/10.3846/transport.2018.6045.

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This study was initiated with a goal of improving the bus scheduling model using the past data of “smart card”. Traffic congestion level of Seoul is keep aggravating and it also has negative influence on air pollution and our health. Additionally, this heavy traffic causes high congestion costs. The continuous quantitative growth of the public transportation system brings the necessity of its efficient operation system for its future qualitative growth. The improvement of operation system is necessary also to improve public transportation operation cost efficiency of Seoul. In other words, the systematic planning is necessary for maximizing passengers’ satisfaction level and the public transportation operation cost efficiency of Seoul. The current allocation interval of Seoul bus system is designed based on the empirical data of the past, which is incapable of immediate response to rapidly changing passenger demands. This research analyses passengers’ behaviour and makes a proposal for the traffic network operation by analysing the “traffic card (smart card) big data”, which comes from over 90% of the passengers so as to be flexible in dealing with rapid changes in demand.
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Verseckienė, Alina. "INTEGRATION OF THE PARATRANSIT IN URBAN PUBLIC TRANSPORT SYSTEM / PARATRANSPORTO INTEGRAVIMO Į MIESTO VIEŠOJO TRANSPORTO SISTEMĄ ASPEKTŲ TYRIMAS." Mokslas – Lietuvos ateitis 7, no. 5 (February 2, 2016): 533–39. http://dx.doi.org/10.3846/mla.2015.831.

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The demand of transport grows along with road traffic. Congestion costs 1% of the GDP of European Union (European Union 2014) and also causes significant emissions of carbon dioxide and other pollutants. This problem could be solved by transfering a part of passengers from private modes of transport to the public transport. But the essential condition is a sustainable development which means the accessibility on equal terms. Therefore, attention to the focus group – people with movement impairements, is neccessary. Since even under ideal conditions some of those people will not be able to use the ordinary public transport services, a special transportation service, called paratransit, should be offered. In this paper the parameters of paratransit as well as their variations are analyzed. Also the wider application possibilities are considered. The aspects of integration of paratransit into the existing system, pottential barriers for the integration and conditions for the integration are highlighted. The main purpose of this paper is to formulate the scenarios for the integration of paratransit into the existing public transport system based on the analysis of the scientific literature and the best practices, which could be used to form a policy of improving the accessibility of the public transport for people with movement impairments. Transporto paklausa nuolat auga, o kartu su ja ir kelių eismo intensyvumas. Spūstys Europoje kasmet sudaro apie 1 % jos BVP (Europos Sąjunga 2014), dėl jų išmetama daug anglies dioksido ir kitų nepageidaujamų teršalų. Ši problema miestuose gali būti sprendžiama perkėlus dalį keleivių iš privataus į viešąjį transportą. Tačiau labai svarbu, kad vykdomi projektai atitiktų tvarios plėtros principus, pagal kuriuos numatomas viešojo transporto prieinamumas lygiomis teisėmis. Todėl būtinas dėmesys tikslinei žmonių grupei – žmonėms, turintiems judėjimo apribojimų. Kadangi dalis tų žmonių netgi esant idealioms sąlygoms negalės naudotis tradiciniu viešuoju transportu, jiems yra būtina specialioji transporto paslauga, vadinama paratransportu. Šiame straipsnyje yra išskiriami paratransporto paslaugos parametrai, jų variacijos. Taip pat analizuojamos platesnės šios paslaugos pritaikomumo galimybės. Išskiriami transportinės paslaugos integravimo į esamą viešojo transporto sistemą aspektai bei potencialūs barjerai ir sąlygos paratransporto paslaugai įdiegti. Šio straipsnio tikslas – remiantis mokslinės literatūros ir gerosios patirties analize suformuluoti paratransporto įdiegimo į veikiančią viešojo transporto sistemą scenarijus, kurie gali būti taikomi formuojant viešojo transporto prieinamumo žmonėms, turintiems judėjimo apribojimų, tobulinimo politiką.
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BASOZABAL ZAMAKONA, JOSE FELIX, and MIGUEL ANGEL SORLI PEÑA. "SUSTAINABLE MOBILITY. TRANSPORT DEMAND MANAGEMENT." DYNA 97, no. 4 (July 1, 2022): 341–43. http://dx.doi.org/10.6036/10591.

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This article is based on the conference-debate organized last April 29, by the Basque Group of the Club of Rome given by José Félix Basozabal, naval engineer, expert in transport and public works linked to the Public Administration (Basque Government and Provincial Council of Bizkaia) from 1980 to 2018 in various positions related to transport, public works and environmental training.
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Tang, Chunyan, Ying-En Ge, and William H. K. Lam. "OPTIMIZING LIMITED-STOP BUS SERVICES ALONG A PUBLIC TRANSIT CORRIDOR WITH A DIFFERENTIAL FARE STRUCTURE." Transport 34, no. 4 (October 8, 2019): 476–89. http://dx.doi.org/10.3846/transport.2019.11235.

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Limited-stop bus services are a highly efficient way to release more potential of the public transit system to meet travel demand, especially under constraints on vehicle fleet size and transportation infrastructure. This work first proposes a visualized fare table for the design of limited-stop bus services along a public transit corridor, along which many lines of public transit carry a heavy load of demand back and forth every working day. Based on this proposed fare table, a set of fare strategies and desired aims of fare policy, a differentiated fare structure is established to improve social equity and increase revenue. The nature of the structure can help travellers understand how to be charged between their origins and destinations (e.g. flat, time-based, stop-based or quality-based pricing) and then plan their trips efficiently. Secondly, a model is formulated to minimize the total social cost in designing a fixed demand limited-stop bus service system with a differentiated fare structure. Thirdly, numerical results are carried out with sensitivity analysis within three scenarios of differentiated fare structures. It is found that a differentiated fare structure has a great effect on passenger path choice behaviour and resulting optimal design of bus services. An attractive feature of this differentiated fare structure is that it could not only enhance the operator’s revenue and social equity but also reduce passenger transfers and social cost.
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Faroqi, H., and A. Sadeghi-Niaraki. "DEVELOPING GIS-BASED DEMAND-RESPONSIVE TRANSIT SYSTEM IN TEHRAN CITY." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-1-W5 (December 11, 2015): 189–91. http://dx.doi.org/10.5194/isprsarchives-xl-1-w5-189-2015.

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Create, maintain and development of public transport network in metropolitan are important problems in the field of urban transport management. In public transport, maximize the efficient use of public fleet capacity has been considered. Concepts and technologies of GIS have provided suitable way for management and optimization of the public transports systems. In demand-responsive public transportation system, firstly fellow traveller groups have been established for applicants based on spatial concepts and tools of GIS, second for each group according to its’ members and their paths, a public vehicle has been allocated to them then based on dynamic routing, the fellow passenger group has been gathered from their origins and has been moved to their destinations through optimal route. The suggested system has been implemented based on network data and commuting trips statistics of 1 to 6 districts in Tehran city. Evaluation performed on the results show the 34% increase using of Taxi capacity, 13% increase using of Van capacity and 10% increase using of Bus capacity in comparison between current public transport system and suggested public transportation system has been improved.
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Bojovic, Nebojsa, Branislav Boskovic, Milos Milenkovic, and Aleksandar Sunjic. "A TWO‐LEVEL APPROACH TO THE PROBLEM OF RAIL FREIGHT CAR FLEET COMPOSITION." TRANSPORT 25, no. 2 (June 30, 2010): 186–92. http://dx.doi.org/10.3846/transport.2010.23.

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One of the main objectives for a rail company is to minimize the size of rail freight car fleet in order to reduce operating costs. The problem of rail freight car fleet composition is aimed at determining an optimal structure and size of freight car fleet in order to respond to actual transport demand. A rail company must have capabilities to respond to actual transport demand in case it wants to increase the level of competitiveness on the transport market. Therefore, it is necessary that the structure and size of rail freight car fleet correspond to the structure and size of rail transport demand. In this paper, we developed a two‐level approach to determining an optimal rail freight car fleet composition. This approach has been tested for the case of the Public Enterprise ‘Serbian Railways’ and the obtained results show the potential for a practical application of the proposed approach.
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Pompilio Sartori, Juan José, Jorge Mauricio Oviedo, and Eric Roger Müller. "Estimación de la demanda de transporte por parte de los estudiantes de la ciudad de Córdoba. / Public transport estimate demand for estudents of Córdoba city." Revista de Ciencias Empresariales │Universidad Blas Pascal, no. 3 (2017) (March 20, 2020): 7–18. http://dx.doi.org/10.37767/2468-9785(2018)001.

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Este estudio presenta estimaciones de modelos de elección discreta basados en una muestra de estudiantes a partir de una prueba piloto. Se presentan los resultados correspondientes a los viajes al lugar de estudio por parte de estudiantes universitarios, algunos de los cuales además de estudiar, trabajan. Se ha estimado un modelo logit multinomial de elección de modo de transporte para viajar al lugar de estudio, en el que se han combinado datos de preferencias reveladas y declaradas. El estudio presenta, además, pronósticos de la cuota de mercado del uso de los diferentes modos de transporte, la valoración subjetiva de los ahorros de tiempo de viaje, tiempo de espera y cuadras caminadas en origen y destino al utilizar autobús, como así también las elasticidades de demanda de la elección de modo de transporte y los cambios en el excedente del consumidor ante la aplicación de políticas asociadas a cambios en algunas variables de nivel de servicio de los diferentes modos de transporte. ABSTRACT: The study presents discrete choice models estimated with a sample of students from a pilot survey. It presents estimation results derived from study journeys of university students, some of which are also workers. It has been estimated a multinomial logit model for the decision of making trips to study places, combining revealed and stated preference data. The paper presents market share forecasts for transport modes considered, the subjective valuation of travel time savings, waiting time savings and savings of walked blocks in origin and destination using bus services. Also, it has been estimated the elasticities of demand from the mode choice model and consumer surplus changes derived from the application of policies associated to changes in level of Service variables transport services.
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Dissertations / Theses on the topic "Publict transport demand"

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Sentenac-Chemin, Élodie. "Évolution à long terme de la consommation d'énergie dans le transport routier de passagers : contribution de méthodes statistiques avancées." Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST1157.

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Holmgren, Johan. "Studies in Local Public Transport Demand." Doctoral thesis, Linköping : Linköping University, Department of Management and Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15626.

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Alotaibi, Omar. "Potential demand for public transport in Riyadh City, Saudi Arabia." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/106339/.

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In Riyadh City, as an effort to reduce the excess dependency on private vehicles, in 2012 city’s authorities have approved the construction of a public transport system and travel demand management strategies. On this basis, this study question is “what are the procedures and approaches that have to be undertaken to ensure public transport uptake in Riyadh City?” To answer the study question, a relevant literature has been reviewed in order to identify major successes of public transport services around the world. In addition, two empirical studies were conducted in Riyadh during the study course include a series of semi-structured interviews with local stakeholders and a web-based-general-public survey. The study findings were consolidated and discussed to provide concrete answers to the study question. The study found considerable support by stakeholders and the general-public for introducing public transport services and reshaping the existing travel strategies. It was also found that the future planning of the public transport system in Riyadh City has to pay considerable attention to social and cultural perspectives of its citizens; for safety and separate family carriages. The study also found that improving infrastructure to enhance accessibility to and from transit stations, selecting appropriate TOD sites, parking charges are effective strategies. Finding from a stated preference experiment showed that the likelihood of shifting people from private cars to public transport in Riyadh City would increase by a reduction in public transport cost, number of changes, and increase in the service frequency. Most importantly, there are cultural aspects involving perceptions towards public transport that play an important role in people’s intention to use public transport. For example, it found that highly qualified individuals were more likely to perceive public transport as a 'taking a step down into the World' and this is a point in which public transport authorities need to focus in order to ease this perception. Finally, this is the first time to derive estimates of the value of travel time savings for Riyadh City.
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Versteeg, Luke Oscar. "Demand for Rail: transport options for the Waimakariri District." Thesis, University of Canterbury. Geography, 2006. http://hdl.handle.net/10092/1274.

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The purpose of this research was to investigate the feasibility of a passenger rail service operating on a current rail line in Canterbury, known as the Main North Line, which connects the Waimakariri District to Christchurch. The Main North Line runs through the two main urban areas of the Waimakariri District: Rangiora and Kaiapoi. The need for research into the potential use of the Main North Line for passenger services has arisen due to increasing car congestion on arterial roads between the Waimakariri District and Christchurch. All traffic coming from the Waimakariri District into Christchurch must cross the Waimakariri River, creating a transport bottleneck. An assessment of the location of the Main North Line was conducted with respect to the travel needs of Waimakariri District residents using Geographic Information Systems (GIS) to investigate how far residents live and work from the line and resident surveys to determine whether people would use rail as their main mode of travel into Christchurch. Assessment of the infrastructure was with regard to the locations of potential railways stations and the capabilities of the infrastructure for supporting different levels of passenger service. National and regional transport strategies are placing more importance on the transportation of people and freight by way of rail. A potential rail service for Canterbury will therefore likely include national and regional stakeholders in co-operation with a private service operator, as currently occurs in Wellington and Auckland. An average of 71% of Waimakariri District residents stated they would switch to rail as their main mode of transport for the journey into Christchurch. GIS analysis found that the number of journeys which start in the Waimakariri District and terminate within 1km of Christchurch stations is around 610 which increases to around 4,300 if connecting bus services were utilised in Christchurch.
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Castex, Elodie. "Le Transport A la Demande (TAD) en France : de l'état des lieux à l'anticipation. Modélisation des caractéristiques fonctionnelles des TAD pour développer les modes flexibles de demain." Phd thesis, Avignon, 2007. http://tel.archives-ouvertes.fr/docs/00/26/87/13/PDF/These.E.Castex_2007_V2.pdf.

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Le Transport à la Demande (TAD) est à un mode de transport public à mi-chemin entre le taxi et le bus. Longtemps considéré comme un mode marginal réservé aux espaces peu denses, le TAD connaît un fort développement en France et plus généralement en Europe depuis la fin des années 1990, Il ressort de l'analyse d'une base de données de 615 services, que les TAD français investissent désormais de nouveaux territoires, aussi bien dans les réseaux urbains, périurbains que les espaces ruraux, Les prestations qu'ils proposent se caractérisent par une grande variété d'offre et de fonctionnement, Celles-ci sont décrites à l'aide de plusieurs modélisations fontionnelles, statistiques et graphiques. Une réflexion sur la flexibilité des TAD, ainsi qu'une enquête, viennent ensuite nourrir le débat sur les TAD de demain. Trois exemples illustrent les perspectives qu'ouvre la généralisation de TAD flexibles et innovants en matière de transport public pour les collectivités
Demand Responsive Transport (DRT) is a type of public transportation which combines the advantages of collective transport and taxi. It has often been considered as a marginal means of transportation reserved to low density territories. Since the end of 90s, the number of DRT services has increased regularly. A database of 615 services shows that DRT services invest new territories such as urban, suburban or rural spaces. They offer a large variety of operating services, which are described by using several models we designed (functional, statistical and graphical models). The last part of the thesis is devoted to the flexibility of the DRT, a survey is analysed to discuss the reliability of future DRT services. Three examples illustrate the flexible DRT potentialities for public transportation networks
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Hamnebo, Karl, and Oscar Askfelt. "Information flows in Demand Responsive Public Transport : Interactivity, information, and flexibility in a modern ridesharing service." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-43270.

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The focus of this thesis is to study what and how information flows can be used to improve Demand responsive transport (DRT) systems by understanding potential users and how they could be willing to participate in DRT to a higher degree. The viewpoint of this thesis tends to lean towards a DRT service of a public transport type. This thesis studies users in relation to what interaction and information they perceive to be needed in dealing with a DRT service and the different pros and cons with various approaches. The study gathers information by performing adapted qualitative interviews with a select number of users between the ages of 20-35. The participants give their views on three DRT scenarios and reflect on DRT in general as a concept presented to them through a tangible mocked-up interactive prototype.  The thesis makes several distinct findings. The importance of pricing a DRT service correctly is vital to the users, as several participants in the study relied on pricing for decision-making. It also finds that the usage of zones as nomenclature is confusing to many users. The services must be dependable and punctual to both attract users, keep users, and build trust among the general populace. This study shows that DRT services could be a difficult concept to introduce to users. DRT could be introduced as a complement or as an alternative to conventional public transport. An important factor is a well-designed flow of information in the application to keep the user engaged and involved. It is shown that the usability of the application is a cornerstone for a theoretical DRT service to excel. Context is important where DRT and ridesharing would have a higher success rate. Nighttime in urban areas could be a niche market, due to the irregularity, delay, or interruption of regular public transport services at these hours.
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Carvalho, Elaine Cristina Schneider de. "Comportamento de escolha de linha de ônibus sob a influência de painéis eletrônicos com previsões em tempo real sobre a chegada dos veículos aos pontos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3138/tde-10072014-160538/.

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Esta dissertação teve como objetivo principal investigar a influência, no comportamento de escolha de linha de passageiros de ônibus, de painéis eletrônicos em pontos de parada com informação em tempo real sobre previsões para passagem dos veículos. Para a coleta de dados, um experimento de escolha declarada com desenho eficiente foi aplicado a uma amostra de 1179 entrevistados residentes na Região Metropolitana de São Paulo (RMSP) e pertencentes à comunidade da Universidade de São Paulo. Em cada situação de escolha foram apresentadas duas linhas diferentes de ônibus que chegariam ao mesmo destino, mas não passavam pelo mesmo ponto, de modo que a escolha a ser feita era entre uma ou outra combinação de linha e ponto. Adicionalmente, apenas um dos pontos tinha painel eletrônico. As alternativas também se diferenciavam pelos seguintes atributos: intervalo de tempo programado para a passagem de veículos consecutivos da mesma linha; possível atraso em relação ao intervalo programado; tempo de viagem dentro do veículo até o destino; ocupação do veículo quando chega ao ponto; e valor da tarifa. Na amostra predominaram jovens com até 25 anos (64% da amostra), homens (60%), usuários frequentes de ônibus (80%), estudantes (81%) e entrevistados com pelo menos um automóvel no domicílio (76%). A partir das respostas ao experimento foram estimados modelos de escolha discreta Mixed Logit Panel, de modo a mensurar a importância relativa de cada atributo na decisão e também medir a variabilidade das preferências entre os entrevistados. Os resultados indicam que a presença do painel no ponto de ônibus tem, sim, influência sobre a escolha da linha. Os entrevistados estariam dispostos a pagar em média, pela presença de painel, R$0,12 adicionais, equivalentes a 5 minutos de viagem. Verificou-se também que a existência de painel no ponto diminui a desutilidade marginal da espera, e isto ocorre com mais intensidade quando ela está associada ao atraso do que quando está associada ao intervalo programado entre veículos. O valor médio do tempo de viagem foi relativamente baixo: R$1,44/hora, provavelmente devido à composição socioeconômica da amostra, com elevada proporção de estudantes. No entanto, observou-se que o comportamento de escolha de linha é bastante afetado pelas características socioeconômicas e de uso de ônibus dos entrevistados, podendo o valor do tempo chegar a R$17,00/hora, e a disposição a pagar pelo painel a R$0,77. Acredita-se que os resultados desta pesquisa permitem ampliar o entendimento do comportamento de escolha de linha, ao incorporar a presença de painel no ponto como elemento adicional da decisão.
The main objective of this research is to investigate the influence on bus route choice behavior of variable message signs (VMS) displaying real time predictions of bus arrival at stops. A stated choice survey was conducted, using an efficient design experiment. Sampled individuals were asked to answer to eight choice situations, each presenting two bus routes going to the same destination but with different itineraries and boarding stops. The choice was made between two combinations of bus route and boarding stop; only one of the stops had VMS. The other attributes characterizing alternatives were: bus route headway, (possible) delay at arriving at the stop, travel time until destination, level of vehicle crowdedness when arriving at the boarding stop, and fare. Data were collected from 1179 individuals, mostly students, professors and employees of the University of São Paulo, and all of them residents of the São Paulo Metropolitan Area. The typical interviewee was 25 years old or younger (64% of the sample), male (60%), a frequent bus user (80%), student (81%) and had at least one car in his household. Mixed logit panel discrete choice models were estimated to analyze the data, capturing both the relative importance of each attribute in the decision process and systematic taste variation among individuals. Results show that VMS displaying predictions of bus arrival at stops do influence bus route choice behavior. The estimated average willingness to pay for a bus stop to have a VMS was R$0.12, which corresponds to 5 minutes of travel time. It was also observed that the marginal disutility of waiting time decreases when there is a VMS at the stop. Disutility of waiting due to delays also decreases (more intensively) with the VMS. The average value of travel time was relatively low, compared to expectations: R$1.44/hour, probably due to the socioeconomic profile of the sample, particularly the high proportion of students. Nevertheless, frequency of bus use and socioeconomic characteristics significantly affect route choice behavior; the value of travel time, for instance, may reach R$17/hour, while willingness to pay for a VMS in a stop may become R$0.77. The results indicate that incorporating the VMS as an additional component of the decision, allows for a better understanding of bus route choice behavior.
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Jain, Nihit. "Assessing the impact of recent fare policy changes on public transport demand in London." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66866.

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Thesis (S.M. in Transportation)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 170-172).
Public transit agencies across the world have been moving towards electronic ticketing technology and to take advantage of the greater flexibility, have made changes in fare structure. Over the last decade, Transport for London has implemented the Oyster smart card based electronic ticketing system (including the Pay-as-you-Go stored credit payment facility) on the major public transport modes: buses, the Underground and National Rail, and there have also been changes in the fare structure on these modes. This thesis explores the impacts that fare structure and technology changes (known here as fare policy changes) have had on user sensitivity to fares (fare elasticities), ticket usage and demand for travel on public transport modes in London. The first case study uses a log-linear regression model on annual-differenced data to estimate demand on buses and the Underground in London. The findings from this research suggest that London bus and Underground user fare elasticities have not changed significantly since 2000. The implementation of the Oystercard Pay-as-you-Go system increased demand on the Underground, while the effect on buses could not be conclusively estimated. The second case study uses ticket sales and journey data from before and after the implementation of the Oyster electronic ticketing system on National Rail to assess the impact on ticket use, growth in travel and modal switching. The results show that, within 9 months of the implementation, Oystercard Pay-as-you-Go journeys on National Rail tripled, while single or return journeys on paper tickets halved. Further, after controlling for other changes, the electronic ticketing system increased travel on National Rail by around 3%. This increase resulted from growth in public transport travel and possibly from switching from other public transport modes. This research is of value to policy makers in public transport agencies since it suggests that electronic ticketing systems, if implemented properly, may increase public transport demand. The findings also suggest that smart card payment systems offering stored credit and multi-journey passes are preferred by users over less convenient ticket media such as limited paper tickets.
by Nihit Jain.
S.M.in Transportation
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Hedström, Marie, and Johanna Johansson. "Development of a forecast model for public transport trips in smaller cities." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-121683.

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It has become more important for operators to be able to predict the future number of public transport passengers when consider to place a tender for operating public transport in a city or region, this is due to the new types of operator contracts was introduced quite recently. There are models in use today that can predict this, but they are often time consuming and complex and therefore it can be expensive to perform a forecast. Aside from this, most models in use for Sweden today are adapted for larger cities. Thus, the aim of this thesis is to propose a model that requires minimal input data with a short set up and execution time that can be used to predict a forecast for the public transport system in smaller cities without notably affecting the quality of the result. The developed model is based on a forecast model called LuTrans, which in turn is based on a common method, the four step model. The aim of the model lies within public transportation but it also consider other modes. The input data used by the model mainly consists of socio-economic data, the travel time and distance between all the zones in the network. The model also considers the cost for traveling by car or public transport. The developed model was applied to the Swedish city, Örebro, where a forecast was conducted for a future scenario. It is easily to apply the model to different cities to estimate a forecast for the public transport system. The developed model for the base scenario predicts trips for individual bus lines with an accuracy of 85 % for the city of Örebro. The developed model gave the result that the trips made by public transport in the future scenario of Örebro 2025 will increase annually by 0.94 %. The conclusion is that it is possible to develop a simple model that can be easily applied for a desired city. Although the developed model produced a plausible result for Örebro, further work such as implementation on other cities are required in order to fully evaluate the developed model.
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Drageryd, Lars. "Using public transport tap-in data to improve a travel demand model: A Norrköping case study." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-151065.

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With reliable models to forecast travel demand, traffic planners and decision-makers can be assisted in choosing the best solutions to obtain traffic performance goals. Practitioners have traditionally been relying on infrequent, costly and respondent pressurized travel surveys as their main source of data for these models. The drawbacks of the data collection method highlight a need to search for alternative sources of data used for the purpose. One such source is public transport “tap-in” data. This thesis executed a case study with the target of improving the travel demand model of Norrköping via public transport data. An algorithm that estimates the alighting station of travellers was applied to a data set provided by the public transport operator of the city. By allocating the OD-demand from stations to the traffic analysis zones used in the model a straightforward integration method using the tap-in estimate as a reference matrix could be used. The target with the method was to redistribute the demand in such a way that the public transport demand approached the tap-in estimate but that the total demand for all modes for the OD-pair remained unchanged. The results gave some indication that the integration of tap-in data improved the model performance from the perspective of public transports. In a regression analysis comparing the number of entries per station the integration of tap-in data increased the correlation coefficient from 0,845 to 0,864. Further was the performance for other transport modes seemingly not worsened by the integration of tap-in data. Finding an allocation procedure that was generic but still accurate proved complex. Further were drawbacks with the integration procedure highlighted where the method executed affected the results of the model, not its behaviour. The consequence of this is that, though the model might be an accurate representation of the current state of traffic, it is difficult to execute the same procedure when investigating future states. Still, the thesis stressed some of the potential for public transport data in modelling contexts, where the role of the data, given the procedure executed, still is of complementary character to travel surveys.
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Books on the topic "Publict transport demand"

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Travel demand management and public policy. Aldershot, Hants, England: Ashgate, 2000.

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Hill, Eileen. Forecasting public transport demand: The demographic dimension. Oxford (11 Bevington Road, OX2 6NB): Transport Studies Unit, Oxford University, 1990.

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European Conference of Ministers of Transport. Transport for disabled people: Developing accessible transport : the role of demand responsive services : ECMT seminar 22nd October 1986. Paris: O.E.C.D., 1987.

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Office, General Accounting. Air pollution: Meeting future electricity demand will increase emissions of some harmful substances : report to congressional committees. Washington, D.C: U.S. General Accounting Office, 2002.

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Office, General Accounting. [Impoundment control--President's 104th special message for fiscal year 1992]. Washington, D.C: The Office, 1992.

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Office, General Accounting. [Impoundment control--President's fourth special message for FY 1994]. Washington, D.C: The Office, 1994.

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Office, General Accounting. [Status of budget authority pursuant to FY 1987 deferrals]. Washington, D.C: The Office, 1987.

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Office, General Accounting. Financial audit: Rural Telephone Bank's 1988 financial statements : report to the Congress. Washington, D.C: The Office, 1990.

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Office, General Accounting. [ Impoundment control--President's fifth special message for FY 1995]. Washington, D.C: The Office, 1995.

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Office, General Accounting. [Impoundment control--comments on the President's first special impoundment message for fiscal year 1994]. Washington, D.C: The Office, 1993.

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Book chapters on the topic "Publict transport demand"

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Gkiotsalitis, Konstantinos. "Tactical Planning of On-Demand and Shared Mobility Services." In Public Transport Optimization, 517–43. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-12444-0_12.

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Sun, Wenzhe, and Jan-Dirk Schmöcker. "Demand estimation for public transport network planning." In The Routledge Handbook of Public Transport, 289–305. New York: Routledge, 2021.: Routledge, 2021. http://dx.doi.org/10.4324/9780367816698-24.

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Yen, Barbara T. H., and Corinne Mulley. "Parking provision, parking demand and public transport accessibility." In The Routledge Handbook of Public Transport, 405–18. New York: Routledge, 2021.: Routledge, 2021. http://dx.doi.org/10.4324/9780367816698-33.

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Gentile, Guido, Klaus Noekel, Jan-Dirk Schmöcker, Valentina Trozzi, and Ektoras Chandakas. "The Theory of Transit Assignment: Demand and Supply Phenomena." In Modelling Public Transport Passenger Flows in the Era of Intelligent Transport Systems, 387–481. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-25082-3_7.

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Correia, Ricardo, Tânia Fontes, and José Luís Borges. "Forecasting of Urban Public Transport Demand Based on Weather Conditions." In Advances in Mobility-as-a-Service Systems, 75–84. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-61075-3_8.

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Naumov, Vitalii. "Modeling Demand for Passenger Transfers in the Bounds of Public Transport Network." In Data Analytics: Paving the Way to Sustainable Urban Mobility, 156–63. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-02305-8_19.

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Savant, Sujata, Neeraj Sharma, and Amit Singh Baghel. "Demand Responsive Public Transport System in Airport Travel: Case Study of Delhi." In Advances in Mobility-as-a-Service Systems, 42–55. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-61075-3_5.

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Malnaca, Kristine, and Evelina Budilovich. "Demand and Supply of Public Transport Services in Sparsely Populated Rural Areas." In Lecture Notes in Networks and Systems, 363–70. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96196-1_33.

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Borangiu, Theodor, Silviu Răileanu, Iulia Voinescu, and Octavian Morariu. "Dynamic Service Capacity and Demand Matching in a Holonic Public Transport System." In Lecture Notes in Business Information Processing, 573–89. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32689-4_44.

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Antonialli, Fabio. "Autonomous on-Demand Vehicles and the (R)evolution of Public Transport Business Models." In Transportation Research, Economics and Policy, 3–21. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72976-9_1.

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Conference papers on the topic "Publict transport demand"

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Šimunović, Ljupko, Marko Slavulj, Mario Ćosić, and Matija Sikirić. "Analysis of public transport demand in the Municipality of Stupnik." In Public Transport & Smart Mobility. Faculty of Transport and Traffic Sciences, University of Zagreb, 2021. http://dx.doi.org/10.7307/ptsm.2020.2.

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Public transport is the backbone of urban mobility, providing people with access to employment, education, trade and daily activities. It provides a special benefit to people who do not own a car and are dependent on well-organized public transport. The paper presents an analysis of the demand for public transport services in the Municipality of Stupnik, otherwise organized in the form of bus transport. The paper presents the methodology used, as well as the obtained results, and the associated discussion and conclusion.
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Vidan, Luka, Marko Slavulj, and Dino Šojat. "Analysing County and Local Public Passenger Transport in the City of Velika Gorica." In Public Transport & Smart Mobility. Faculty of Transport and Traffic Sciences, University of Zagreb, 2021. http://dx.doi.org/10.7307/ptsm.2020.5.

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This paper presents an analysis of the existing local public transport in the City of Velika Gorica and a few solutions to optimize the existing local public transport. In this paper, the management of passenger transport was analysed from a theoretical point of view, with data on transport demand between Zagreb and Velika Gorica being used. Transport demand analysis is shown by graphs, tables, and route data. In the proposed solution, smaller buses on some routes were introduced, timetables were changed, and Route 330 was cancelled.
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Odgers, J. F. "Investigating predictors of the demand for public transport in Melbourne, Australia." In URBAN TRANSPORT 2009. Southampton, UK: WIT Press, 2009. http://dx.doi.org/10.2495/ut090281.

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Morfoulaki, M., Y. Tyrinopoulos, K. Kotoula, G. Myrovali, and N. Georgantis. "Addressing seasonal transport demand in touristic areas through public transport interventions." In URBAN TRANSPORT 2013. Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/ut130541.

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Toš, Iva. "Use of technology in improving urban transport." In Public Transport & Smart Mobility. Faculty of Transport and Traffic Sciences, University of Zagreb, 2021. http://dx.doi.org/10.7307/ptsm.2020.9.

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People must be able to move around to meet their basic needs, but also additional needs that include rest and recreation. The growing trend of urbanization leads to population growth in cities, and thus to an increase in demands on the transport system in cities, with the achievement of sustainable urban mobility as one of the key challenges. Cities worldwide have started to look for solutions which enable transportation linkages, mixed land uses and high-quality services with long – term positive effect on the economy. Today cities are flooded with a range of data, both useful and useless. In that large database, city administration should recognize the importance of processing, analyzing and mathematical-statistical processing. Each city should determine its vision, goals and strategies of transforming itself and developing smart services at basis of collected data and their processing. Future initiatives of a smart city and smart transportation should be focused on creating efficient, environmentally friendly transport, based on interactive solutions for smartphones. There are a lot of applications and technologies that contribute to smart cities. Although technology is evolving every day, there is always room for improvement by using available data, smart management and individual approach to each city, it is possible to achieve an improvement in public transport services, which would also improve the quality of life in urban areas.
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Aljoufie, M. "Spatial analysis of the potential demand for public transport in the city of Jeddah, Saudi Arabia." In URBAN TRANSPORT 2014. Southampton, UK: WIT Press, 2014. http://dx.doi.org/10.2495/ut140101.

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Antunes, Hugo, Paulo Figueiras, Ruben Costa, Joel Teixeira, and Ricardo Jardim-Gonçalves. "Discovery of Public Transportation Patterns Through the Use of Big Data Technologies for Urban Mobility." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11415.

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Abstract Big cities show a wide public transport network that allows people to travel within the cities. However, with the overcrowding of big urban areas, the demand for new mobility strategies has increasing. Every day, citizens need to commute fast, easily and comfortable, which is not always easy due to the complexity of the public transport network. Therefore, this paper aims to explore the ability of Big Data technologies to cope with data collected from public transportation, by inferring automatically and continuously, complex mobility patterns about human mobility, in the form of insightful indicators (such as connections, transshipments or pendular movements), creating a new perspective in public transports data analytics. With special focus on the Lisbon public transport network, the challenge addressed by this work, is to analyze the demand and supply side of transportation network of Lisbon metropolitan area, considering ticketing data provided by the different transportation operators, which until now were essentially obtained through observation methods and surveys.
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Horvath, B. "Forecasting of travel demand in urban public transport." In 2012 IEEE 16th International Conference on Intelligent Engineering Systems (INES). IEEE, 2012. http://dx.doi.org/10.1109/ines.2012.6249851.

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Ahmed, Qureshi Intikhab, and Huapu Lu. "Supply-Demand Crisis of Public Transport in Pakistan." In First International Conference on Transportation Engineering. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40932(246)511.

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Fadeev, A., S. Alhusseini, and E. N. Belova. "Monitoring Public Transport Demand Using Data From Automated Fare Collection System." In International Conference "Aviamechanical engineering and transport" (AVENT 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/avent-18.2018.2.

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Reports on the topic "Publict transport demand"

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Muhsen, Abdelrahman, and Abu Toasin Oakil. Sustainable Transport in Riyadh: Potential Trip Coverage of the Proposed Public Transport Network. King Abdullah Petroleum Studies and Research Center, October 2021. http://dx.doi.org/10.30573/ks--2021-dp17.

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The transport sector has always had high energy demand and is a significant contributor to greenhouse gas (GHG) emissions and climate change. To improve energy efficiency and reduce GHG emissions, Riyadh is introducing an integrated public transport system. Per capita energy consumption is much lower for public transport than for private vehicles, such as cars and taxis. This study investigates the potential impact of Riyadh’s proposed public transport system on car and taxi trips.
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Muhsen, Abdelrahman, and Abu Toasin Oakil. Sustainable Transport in Riyadh: Potential Trip Coverage of the Proposed Public Transport Network. King Abdullah Petroleum Studies and Research Center, October 2021. http://dx.doi.org/10.30573/ks--2021-dp17.

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The transport sector has always had high energy demand and is a significant contributor to greenhouse gas (GHG) emissions and climate change. To improve energy efficiency and reduce GHG emissions, Riyadh is introducing an integrated public transport system. Per capita energy consumption is much lower for public transport than for private vehicles, such as cars and taxis. This study investigates the potential impact of Riyadh’s proposed public transport system on car and taxi trips.
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Al Hosain, Nourah, and Alma Alhussaini. Evaluating Access to Riyadh’s Planned Public Transport System Using Geospatial Analysis. King Abdullah Petroleum Studies and Research Center, June 2021. http://dx.doi.org/10.30573/ks--2021-dp10.

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The King Abdulaziz Project for Public Transport in Riyadh city is one of the world’s largest urban transit systems being developed. The project aims to meet the demands of the city’s growing urban population while reducing traffic congestion, heavy private car dependence and air pollution. The performance of any public transport system largely depends on its accessibility. Therefore, this study evaluates the populations’ access to Riyadh’s public transport stations using network analysis tools based on geographic information systems.
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Bedoya-Maya, Felipe, Lynn Scholl, Orlando Sabogal-Cardona, and Daniel Oviedo. Who uses Transport Network Companies?: Characterization of Demand and its Relationship with Public Transit in Medellín. Inter-American Development Bank, September 2021. http://dx.doi.org/10.18235/0003621.

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Transport Network Companies (TNCs) have become a popular alternative for mobility due to their ability to provide on-demand flexible mobility services. By offering smartphone-based, ride-hailing services capable of satisfying specific travel needs, these modes have transformed urban mobility worldwide. However, to-date, few studies have examined the impacts in the Latin American context. This analysis is a critical first step in developing policies to promote efficient and sustainable transport systems in the Latin-American region. This research examines the factors affecting the adoption of on-demand ride services in Medellín, Colombia. It also explores whether these are substituting or competing with public transit. First, it provides a descriptive analysis in which we relate the usage of platform-based services with neighborhood characteristics, socioeconomic information of individuals and families, and trip-level details. Next, factors contributing to the election of platform-based services modeled using discrete choice models. The results show that wealthy and highly educated families with low vehicle availability are more likely to use TNCs compared to other groups in Medellín. Evidence also points at gender effects, with being female significantly increasing the probability of using a TNC service. Finally, we observe both transit complementary and substitution patterns of use, depending on the context and by whom the service is requested.
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Muhoza, Cassilde, Wikman Anna, and Rocio Diaz-Chavez. Mainstreaming gender in urban public transport: lessons from Nairobi, Kampala and Dar es Salaam. Stockholm Environment Institute, May 2021. http://dx.doi.org/10.51414/sei2021.006.

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The urban population of Africa, the fastest urbanizing continent, has increased from 19% to 39% in the past 50 years, and the number of urban dwellers is projected to reach 770 million by 2030. However, while rapid urbanization has increased mobility and created a subsequent growth in demand for public transport in cities, this has not been met by the provision of adequate and sustainable infrastructure and services. The majority of low-income residents and the urban poor still lack access to adequate transport services and rely on non-motorized and public transport, which is often informal and characterized by poor service delivery. Lack of access to transport services limits access to opportunities that aren’t in the proximity of residential areas, such as education, healthcare, and employment. The urban public transport sector not only faces the challenge of poor service provision, but also of gender inequality. Research shows that, in the existing urban transport systems, there are significant differences in the travel patterns of and modes of transport used by women and men, and that these differences are associated with their roles and responsibilities in society. Moreover, the differences in travel patterns are characterized by unequal access to transport facilities and services. Women are generally underrepresented in the sector, in both its operation and decision-making. Women’s mobility needs and patterns are rarely integrated into transport infrastructure design and services and female users are often victims of harassment and assault. As cities rapidly expand, meeting the transport needs of their growing populations while paying attention to gender-differentiated mobility patterns is a prerequisite to achieving sustainability, livability and inclusivity. Gender mainstreaming in urban public transport is therefore a critical issue, but one which is under-researched in East Africa. This research explores gender issues in public transport in East Africa, focusing in particular on women’s inclusion in both public transport systems and transport policy decision-making processes and using case studies from three cities: Nairobi, Kampala and Dar es Salaam.
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Hsueh, Gary, David Czerwinski, Cristian Poliziani, Terris Becker, Alexandre Hughes, Peter Chen, and Melissa Benn. Using BEAM Software to Simulate the Introduction of On-Demand, Automated, and Electric Shuttles for Last Mile Connectivity in Santa Clara County. Mineta Transportation Institute, January 2021. http://dx.doi.org/10.31979/mti.2021.1822.

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Despite growing interest in low-speed automated shuttles, pilot deployments have only just begun in a few places in the U.S., and there is a lack of studies that estimate the impacts of a widespread deployment of automated shuttles designed to supplement existing transit networks. This project estimated the potential impacts of automated shuttles based on a deployment scenario generated for a sample geographic area: Santa Clara County, California. The project identified sample deployment markets within Santa Clara County using a GIS screening exercise; tested the mode share changes of an automated shuttle deployment scenario using BEAM, an open-source beta software developed at the Lawrence Berkeley National Laboratory to run traffic simulations with MATSim; elaborated the model outputs within the R environment; and then estimated the related impacts. The main findings have been that the BEAM software, despite still being in its beta version, was able to model a scenario with the automated shuttle service: this report illustrates the potential of the software and the lessons learned. Regarding transportation aspects, the model estimated automated shuttle use throughout the county, with a higher rate of use in the downtown San José area. The shuttles would be preferred mainly by people who had been using gasoline-powered ride hail vehicles for A-to-B trips or going to the bus stop, as well as walking trips and a few car trips directed to public transport stops. As a result, the shuttles contributed to a small decrease in emissions of air pollutants, provided a competitive solution for short trips, and increased the overall use of the public transport system. The shuttles also presented a solution for short night trips—mainly between midnight and 2 am—when there are not many options for moving between points A and B. The conclusion is that the automated shuttle service is a good solution in certain contexts and can increase public transit ridership overall.
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Muelaner, Jody. The Challenges of Vehicle Decarbonization. SAE International, April 2022. http://dx.doi.org/10.4271/epr2022se1.

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A narrow focus on electrification and elimination of tailpipe emissions is unlikely to achieve decarbonization objectives. Renewable power generation is unlikely to keep up with increased demand for electricity. A focus on tailpipe emissions ignores the significant particulate pollution that “zero emission” vehicles still cause. It is therefore vital that energy efficiency is improved. Active travel is the key to green economic growth, clean cities, and unlocking the energy saving potential of public transport. The Challenges of Vehicle Decarbonization reviews the urgent need to prioritize active travel infrastructure, create compelling mass-market cycling options, and switch to hybrid powertrains and catenary electrification for long-haul heavy trucks. The report also warns of the potential increase in miles travelled with the advent of personal automated vehicles as well as the pitfalls of fossil-fuel derived hydrogen power.
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8

Nilsson Lewis, Astrid, Kaidi Kaaret, Eileen Torres Morales, Evelin Piirsalu, and Katarina Axelsson. Accelerating green public procurement for decarbonization of the construction and road transport sectors in the EU. Stockholm Environment Institute, February 2023. http://dx.doi.org/10.51414/sei2023.007.

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Public procurement of goods and services contributes to about 15% of global greenhouse gas emissions. In the EU, public purchasing represents 15% of its GDP, acting as a major influencer on the market through the products and services acquired by governments from the local to national levels. The public sector has a role to play in leveraging this purchasing power to achieve the best societal value for money, particularly as we scramble to bend the curve of our planet’s warming. Globally, the construction and transport sectors each represent about 12% of government procurements’ GHG emissions. Furthermore, these sectors’ decarbonization efforts demand profound and disruptive technological shifts. Hence, prioritizing these sectors can make the greatest impact towards reducing the environmental footprint of the public sector and support faster decarbonization of key emitting industries. Meanwhile, the EU committed to achieving 55% reduction in GHG emissions by 2030 compared to 1990 levels. Drastic emissions reductions are needed at an unprecedented speed and scale to achieve this goal. Green Public Procurement (GPP) is the practice of purchasing goods and services using environmental requirements, with the aim of cutting carbon emissions and mitigating environmental harm throughout the life cycle of the product or service. While the EU and many of its Member States alike have recognized GPP as an important tool to meet climate goals, the formalization of GPP requirements at the EU level or among local and national governments has been fragmented. We call for harmonization to achieve the consistency, scale and focus required to make GPP practices a powerful decarbonization tool. We surveyed the landscape of GPP in the EU, with a focus on construction and road transport. Through interviews and policy research, we compiled case studies of eight Member States with different profiles: Sweden, the Netherlands, France, Germany, Estonia, Poland, Spain and Italy. We used this information to identify solutions and best practices, and to set forth recommendations on how the EU and its countries can harmonize and strengthen their GPP policies on the path toward cutting their contributions to climate change. What we found was a scattered approach to GPP across the board, with few binding requirements, little oversight and scant connective tissue from national to local practices or across different Member States, making it difficult to evaluate progress or compare practices. Interviewees, including policy makers, procurement experts and procurement officers from the featured Member States, highlighted the lack of time or resources to adopt progressive GPP practices, with no real incentive to pursue it. Furthermore, we found a need for more awareness and clear guidance on how to leverage GPP for impactful societal outcomes. Doing so requires better harmonized processes, data, and ways to track the impact and progress achieved. That is not to say it is entirely neglected. Most Member States studied highlight GPP in various national plans and have set targets accordingly. Countries, regions, and cities such as the Netherlands, Catalonia and Berlin serve as beacons of GPP with robust goals and higher ambition. They lead the way in showing how GPP can help mitigate climate change. For example, the Netherlands is one of the few countries that monitors the effects of GPP, and showed that public procurement for eight product groups in 2015 and 2016 led to at least 4.9 metric tons of avoided GHG emissions. Similarly, a monitoring report from 2017 showed that the State of Berlin managed to cut its GHG emissions by 47% through GPP in 15 product groups. Spain’s Catalonia region set a goal of 50% of procurements using GPP by 2025, an all-electric in public vehicle fleet and 100% renewable energy powering public buildings by 2030. Drawing from these findings, we developed recommendations on how to bolster GPP and scale it to its full potential. In governance, policies, monitoring, implementation and uptake, some common themes exist. The need for: • Better-coordinated policies • Common metrics for measuring progress and evaluating tenders • Increased resources such as time, funding and support mechanisms • Greater collaboration and knowledge exchange among procurers and businesses • Clearer incentives, binding requirements and enforcement mechanisms, covering operational and embedded emissions With a concerted and unified movement toward GPP, the EU and its Member States can send strong market signals to the companies that depend on them for business, accelerating the decarbonization process that our planet requires.
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9

Niles, John S., and J. M. Pogodzinski. Steps to Supplement Park-and-Ride Public Transit Access with Ride-and-Ride Shuttles. Mineta Transportation Institute, July 2021. http://dx.doi.org/10.31979/mti.2021.1950.

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Public transit ridership in California declined in the five years before the pandemic of 2020–21 and dropped significantly further after the pandemic began. A sharp downward step in the level of transit boarding occurred after February 2020, and continues to the date of this report as a result of the public-health guidance on social distancing, expanded work-at-home, and a travel mode shift from public transit to private cars. A critical issue has come to the foreground of public transportation policy, namely, how to increase the quality and geographic reach of transit service to better serve the essential trips of mobility disadvantaged citizens who do not have access to private vehicle travel. The research focus of this report is an examination of the circumstances where fixed route bus route service could cost-effectively be replaced by on-demand microtransit, with equivalent overall zone-level efficiency and a higher quality of complete trip service. Research methods were reviews of documented agency experience, execution of simple simulations, and sketch-level analysis of 2019 performance reported in the National Transit Database. Available evidence is encouraging and suggestive, but not conclusive. The research found that substitutions of flexible microtransit for fixed route buses are already being piloted across the U.S., with promising performance results. The findings imply that action steps could be taken in California to expand and refine an emphasis on general purpose microtransit in corridors and zones with a relatively high fraction of potential travelers who are mobility disadvantaged, and where traditional bus routes are capturing fewer than 15 boardings per vehicle hour. To be sufficiently productive as fixed route replacements, microtransit service technologies in the same or larger zones need to be capable of achieving vehicle boardings of five per hour, a challenge worth addressing with technology applications. Delivery of microtransit service can be undertaken through contracts with a growing set of private sector firms, which are developing processes to merge general purpose customers with those now assigned to ADA-required paratransit and Medi-Cal-supported non-emergency medical transport.
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10

Singh, Niranjan. A Method of Sound Wave Diffusion in Motor Vehicle Exhaust Systems. Unitec ePress, April 2017. http://dx.doi.org/10.34074/ocds.072.

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It is common practice among young vehicle owners to modify the exhaust system of their vehicle to reduce exhaust backpressure with the perception that the output power increases. In the process of backpressure reduction, the output noise (Whakapau) of the vehicle also increases correspondingly. The conflict of interest that arises from modified vehicle exhaust systems and the general public is well publicised. This prototype was designed to meet the demands of exhaust back pressure reduction while at the same time mitigate the sound output of the vehicle. The design involves lining a cylindrical pipe with common glass marbles which is normally used for playing. The marbles are made of a sustainable material as it does not erode when exposed to exhaust gases and it is easily recycled. The prototype muffler is much smaller in size when compared to conventional mufflers. All tests were done in a simulated controlled environment and data collated using approved New Zealand Transport Agency testing regime. It has to be noted that the test focus was noise mitigation and not comprehensive engine performance testing. The results of the test prove a reduction of sound levels, however more testing needs to be undertaken with varying annulus depth, marble sizes and arrangements and engine loads.
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