Relevant bibliographies by topics / Road infrastructure maintenance

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Road infrastructure maintenance'

Author: Grafiati
Published: 19 February 2023

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Journal articles on the topic "Road infrastructure maintenance"

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Ait-Lamallam, Sara, Reda Yaagoubi, Imane Sebari, and Omar Doukari. "Extending the IFC Standard to Enable Road Operation and Maintenance Management through OpenBIM." ISPRS International Journal of Geo-Information 10, no. 8 (July 22, 2021): 496. http://dx.doi.org/10.3390/ijgi10080496.

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Open Building Information Modelling (OpenBIM) is a collaborative project management process. Its application to road infrastructures is currently limited. OpenBIM standards for infrastructure are still under development. One of these standards is the Industry Foundation Classes (IFC), which is a data architecture for modelling infrastructure projects. The current and upcoming releases of IFCRoad focus on structuring data for the design and construction phases of an infrastructure’s lifecycle. Semantics of the O&M process phase are not fully integrated within these standards. This paper proposes an extension of the IFC schema to enrich this standard with semantics inherent in the O&M phase of road infrastructures. This extension, based on IFCInfra4OM ontology, allows the OpenBIM process to be fully applied to road infrastructures. Its implementation on a case study relative to the A7 Agadir–Marrakech Highway in Morocco enables, on the one hand, analysis and compliance with O&M management requirements on the basis of a single container: the IFC-BIM-based model. On the other hand, it allows comparison of the OpenBIM process with that of ClosedBIM for the integration of O&M data into BIM for a road infrastructure.
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Bardhi, Diana. "Road Asset Management Assessment." European Journal of Engineering and Formal Sciences 4, no. 2 (October 15, 2021): 25. http://dx.doi.org/10.26417/646qpv23t.

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Albanian Road Authority (ARA) under the administration of the Ministry of Energy and Infrastructure. It is responsible agency for the process of construction and maintenance of national and regional roads. Albanian Development Fund (ADF) is the agency for construction of rural and regional road infrastructure, also training for maintenance and management of municipalities responsible for maintenance of the urban and rural roads. ARA and ADF are using public funds for the construction of road infrastructure network, so due to restriction budgetary in road maintenance they the need to develop a strategy for the management and financial of maintenance, based on current accounting principles and efficiency of public funds in order to ensure safety and cost saving users. This includes the use of a balance of investments made to launch a database for years and the development of basic documents for the planning and control of public spending in these activities. The question that arises and requires an analysis is: a generally accepted value will be calculated for the infrastructure during its useful life, using the principles of sound accounting and valuation of real estate activities internationally applied. The results show that the existing accounting standards are suitable for use in infrastructure management, allowing a better control of public spending on infrastructure, while the principles of technical assessment of public infrastructure assets require the creation of a database and inventory for all road classification.
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Čovo, Petar, Hrvoje Baričević, and Ante Vukušić. "Reliability of Technological Parameters in Road Infrastructure Maintenance." PROMET - Traffic&Transportation 21, no. 3 (March 2, 2012): 199–204. http://dx.doi.org/10.7307/ptt.v21i3.226.

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It may be well said that the most used indicator of the quality of any technical system is reliability. Basically, this indicator shows the probability of proper technical system functioning within certain time period and under given operating conditions. To ensure that a system under construction possesses adequate given pre-defined characteristics and reliability indicators, it is necessary to plan the reliability and apply suitable methods when new technical systems are developed. Road represents an elementary traffic subsystem, as well as a technical subsystem, constructed by the society in order to meet the communication needs. Its purpose is to enable traffic system functioning. If a road is seen as a system, one can observe the features determining the structure and the principal on which its function is based. The road functioning itself is characterized by a variety of features, the most important being the management characteristic and specific social interest, categorization structure, and roadway condition. To enable smooth and safe traffic, roads should be of prescribed technical and usage levels. Reference is made specifically to road maintenance in the Primorje-Gorski Kotar County. KEYWORDS: infrastructure, terotechnology, road network, maintenance, theory of benefit
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Amadi, Dwi Nor, Pradityo Utomo, and Arief Budiman. "Design and Build of Road Damage Information System in Madiun Regency Using Web Development Life Cycle Methods." Journal of Information Systems and Informatics 4, no. 4 (December 3, 2022): 1112–25. http://dx.doi.org/10.51519/journalisi.v4i4.412.

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Government infrastructure development is growing rapidly, starting from the central and provincial levels. One of the infrastructures currently being pushed by the government is road infrastructure. Both toll roads, regional roads, and district/city roads. Road infrastructure that has been built requires maintenance and repair. Road damage maintenance and repair in urban districts, especially Madiun Regency, Existing Road damage data is still recorded manually using paper, where the government needs help knowing data on road damage that has been recorded, which road conditions have not been repaired, and which have been fixed immediately. Because manual data is prone to wear and loss, tucked in with other manual files. So, the road improvement priority in Madiun Regency still needs to be put on target. For this reason, an information system is required to record the damage to road infrastructure in Madiun Regency. This information system was built using the web development life cycle (WDLC) method. We chose this method because it can be used in all web application development processes and can be modified or added to prototyping and looping to maximize results. The information system for road damage in Madiun Regency was developed using the PHP & MySQL programming languages. The result of this study is a road damage information system that contains updated data on road damage conditions in the Madiun district. Apart from being paperless, digitized data has the advantage of minimal damage and expected data loss and can help decision-makers prioritize repairs by looking at the data in the road damage information system.
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Triyanto, Gandung, Aidul Fitriciada Azhari, and Wardah Yuspin. "Authority of Procurement and Maintenance of Traffic Facilities and Infrastructure on National Roads." UNIFIKASI : Jurnal Ilmu Hukum 8, no. 2 (November 13, 2021): 281–90. http://dx.doi.org/10.25134/unifikasi.v8i2.4833.

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Law 32 of 2004, regional autonomy, mandates the improvement of community services and regional equity by encouraging community participation. Meanwhile, Law 22 of 2009 on road traffic and transportation mandates the maintenance of traffic infrastructure, particularly The Road Traffic Signaling Devices (APILL) on National Roads, National with Provincial Roads intersection, and National with Regency/City Roads intersection to BPTD–The representative of the Ministry of Transportation. In practice, all maintenances are by Regency/City Transportation Service, including the maintenance of the Traffic Signaling Device (APILL) at National and Provincial Roads intersection with Regency/City Roads. The study aims to evaluate Law 22/2009 and its implementing regulations. Besides, This study also attempts to determine the implementation of Traffic Signaling Devices (APILL), including its procurement and maintenance. The research method was legal research. It involved investigating related regulations to the problem under study. The study concludes the maintenance implementation of traffic signaling devices (APILL) is the best fit for the Regency/City Transportation Service. In addition, it is necessary to revise the governing rules for maintaining traffic infrastructure, the traffic signaling devices (APILL).
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Golgota, Alma, and Diana Bardhi. "Aspects of Management and Road Maintenance in Albania." European Journal of Multidisciplinary Studies 1, no. 2 (April 30, 2016): 266. http://dx.doi.org/10.26417/ejms.v1i2.p266-279.

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Safety of road network is an essential part of economic and social development of any industrialized country. Decisions to maintain and improve the reliability, functionality and infrastructure structures can only be achieved through integrated planning and management life cycle routes. Always it has been a tendency to revise road maintenance strategies, but there is still a serious and reliable administration not only because of the shortage of funds, but also problems due to the reorganization of the system. Safety and performance of the road system depends on the continuous activity of road maintenance management. For it to be effective, it is necessary to intervene before depreciation has caused irreparable damages, or damages with a high economic cost of repairs. Investment in road infrastructure during 2006-2014 show that the life of these projects presents problems with maintenance and performance management life cycle in a wide range of component elements. Maintenance planning involves various problems that depend on the degree of degradation of the asphalt layers, the degree of deterioration of road structures (roads, tunnels, culverts, and economic planning of resources to repair them. The aim of this study is the first to provide a brief summary of the issues in the field of maintenance and management of the life cycle of investments in road infrastructure, proposing ways to reorganize the sector of management and maintenance of roads in the next and second testing and evaluation of the work and the nature of the standards are different types of road infrastructure projects, through a methodology consisting of a) development, b) collection of data, and c) analysis.
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Golgota, Alma, and Diana Bardhi. "Asset Management Public Assessment of Road Infrastructure." European Journal of Multidisciplinary Studies 1, no. 3 (April 30, 2016): 172. http://dx.doi.org/10.26417/ejms.v1i3.p172-179.

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For several years, the Albanian Road Authority under the administration of the Ministry of Infrastructure also public transport, following the process of maintenance of national roads, even the Albanian Fund for Development of road infrastructure management agency that handled the funds public for the construction of national infrastructure in rural areas, have seen the need to develop a strategy for the management of maintenance and financial management, based on current accounting principles and efficiency in the use of funds for investment. This includes the use of a balance of investments made to launch a database for years and the development of basic documents for the planning and control of public spending in these activities. The question that arises and requires an analysis is
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Ismiyani, Erna, Dewi Handayani, and RR Rintis Hadiani. "The impact of drainage towards roads in maintenance cost." MATEC Web of Conferences 195 (2018): 05012. http://dx.doi.org/10.1051/matecconf/201819505012.

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An ideal road infrastructure has a low cost for maintenance and better performance of the roads and drainage systems. The disintegrated maintenance system between the roads and drainage is the major cause of an increasing road maintenance cost. Therefore, this research aimed to investigate the impact of drainage towards roads in maintenance cost. This paper is located in Surakarta which was divided into eight catchment areas. The main variables of this paper are cost maintenance of drainage and roads, which were analyzed using regression. These variable data were obtained from the total cost per year allocated by Surakarta City Government on the urban drainage and local road maintenance budget from 2013 to 2017. The results showed that low drainage maintenance cost tended to result in high road maintenance cost.
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Jokanović, Igor, Bojana Grujić, Dragana Zeljić, Žarko Grujić, and Mila Svilar. "Costs of performance based maintenance for local roads: Case study Albania." Selected Scientific Papers - Journal of Civil Engineering 12, no. 2 (December 1, 2017): 71–78. http://dx.doi.org/10.1515/sspjce-2017-0021.

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Abstract The provision and maintenance of road infrastructure is a major global business, consequently it is essential that road maintenance services are provided in the most cost effective manner. Without regular maintenance, roads can rapidly fall into disrepair, preventing realization of the longer term impacts of road improvements on development, such as increased agricultural production and growth in school enrollment, which is of particular importance for a network of local (access) roads. Inadequate local roads maintenance in Albania is proposed to be solved by implementing performance based maintenance approach for which the costing exercise is presented within the paper.
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Popov, N. A., and N. A. Osokin. "IMPROVING ROAD MAINTENANCE MANAGEMENT PRACTICES IN RUSSIA." Strategic decisions and risk management 11, no. 3 (January 13, 2021): 304–15. http://dx.doi.org/10.17747/2618-947x-2020-3-304-315.

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The level of transport infrastructure development is one of the key determinants of economic growth. In 2018, 67.1% of all transported goods in Russia were delivered via road transport. However, Russia’s motor transport system has yet to come close to fulfilling its full potential – 57.6% of public roads do not meet regulatory maintenance requirements. The prevailing statistics highlights the task of ensuring the safety of roads. This issue is especially relevant during winter months, when the roads experience maximum climatic and physico-chemical effects. This article analyzes the road safety system of the constituent entities of the Russian Federation, considers the main regulatory documents governing the activities of road work suppliers and executive authorities in the field of road maintenance. The authors analyzed the best foreign practices in road maintenance policy. The main result of the study is the proposal to introduce a mechanism for servicing roads using a performance based contract to replace to cost based road maintenance contracts, which are the most widely applied in Russia.
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Dissertations / Theses on the topic "Road infrastructure maintenance"

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Kayondo-Ndandiko, Lydia Mazzi. "Geographical Information Technologies for Road Infrastructure Maintenance in Uganda." Licentiate thesis, Blekinge Tekniska Högskola [bth.se], School of Planning and Media Design, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00498.

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This thesis is a documentation of research on Geographical Information Technologies (GITs) as decision support tools in Road Infrastructure Maintenance (RIM) in Uganda. The main objective is to develop an operational framework within which the use of geo-information technologies can be enhanced as decision support tools in road infrastructure maintenance works of Uganda. Specifically, the research identifies the gaps and limitations in the use of and access to GITs for RIM and defines an algorithmic framework to accentuate the use of GITs in RIM. The research undertook a participatory multifaceted approach that included a review of documentation both in academia, in form of articles, journals, books, reports and research theses and also reports and documents prepared by the road infrastructure maintenance sector. Participant observations, field visits and measures, interviews and workshops were also triangularly employed to obtain the inherent answers. Content and GIS analyses were made to arrive at the findings that are documented in the papers which are part of the thesis. The gaps to using GITs in RIM have been found to include the lack of standardized datasets to address key nation-wide and local maintenance requirements, challenges on coordinating how geospatial data are acquired and utilized and the collection of duplicate data sets at the local and national levels. Also, the present institutional arrangements do not permit the formation of lasting partnerships and operating under a coordinated GIS infrastructure. The limitations to access of GITs in the sector include; the absence of policies for accessibility and standard use of GITs, lack of infrastructure to support utilization of geographic datasets, unavailability of and limited accessibility to geographic data, lack of geospatial capacity at individual and organizational levels and the digital divide. A nondeterministic algorithmic framework approach to the accentuation of GIT usage in RIM has been suggested. This framework involves strategies on; developing a policy on data collection guidelines emphasizing the use of GPS, satellite imagery and GIS, continuous undertaking of capacity building in the benefits of GIT use and the science involved, establishment of Local Spatial Data Infrastructures (LSDI) for road maintenance data and setting aside yearly budgets for the defined activities. In this framework, the dynamic segmentation data model is considered a superior data storage strategy for road maintenance data within the GIS. Dynamic Segmentation is the process of transforming linearly referenced data (also known as events) that have been stored in a table into features that can be displayed, queried and analyzed on the map through computations. It allows for the location of multiple events stored with linearly referenced attributes without any duplication with route geometry and in effect supports sharing of network infrastructure with different applications
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Sultana, Masuda. "The Potential of Performance Based Maintenance Contracting for Road Infrastructure Systems of Developing Countries." Thesis, Griffith University, 2013. http://hdl.handle.net/10072/368126.

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The road authority is responsible for the construction and maintenance of the road network system. The authorities strive to reduce cost and time of maintenance activities and to control quality of work as well as keeping the road infrastructure in an efficient state using the traditional methods of contracting. Many road authorities have considered contracting out road maintenance to the private sector based on performance measures as an alternative and better solution than traditional methods of contracts. This method is named performance based maintenance contracting (PBMC). PBMC has received a significant attention from researchers and practitioners as it has a considerable success in minimizing infrastructure maintenance costs in many developed countries over the last two decades. The application of PBMC improves the road maintenance system by applying more efficient technologies and work methods. However, effectiveness of PBMC is still a challenge for developing countries because of resource and skill limitations, corruption, shortage of fund and poor management systems. Hence, the aim of this thesis is to analyse the potential and effectiveness of PBMC for road infrastructure maintenance systems of developing countries. This thesis presents a comprehensive state of the art review of the literature on PBMC that has been produced in recent years. This thesis defines and presents the benefits of PBMC. It briefly discusses the problems of traditional methods of contracting in developing countries. Application of PBMC in developing countries has been reviewed and analysed based on the published journal articles, conference papers, published reports and online databases.
Thesis (Masters)
Master of Philosophy (MPhil)
Griffith School of Engineering
Science, Environment, Engineering and Technology
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Musitha, Pandelani Mumsy. "Investigating critical challenges of maintaining road infrastructure in the Limpopo Province : a case of Makhado Local Municipality." Thesis, University of Limpopo, 2018. http://hdl.handle.net/10386/2393.

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Thesis (MPA.) -- University of Limpopo, 2018
Road infrastructure is usually regarded as an economic backbone of the society. Local government has a responsibility to ensure that local roads are maintained in order to facilitate a movement of people, goods and services. The study was undertaken on the premise that local roads in Makhado Local Municipality are not promoting safety. That is, road infrastructure in this municipality is considered to be deteriorating. It is against this background that the researcher found it worthwhile to investigate critical challenges of maintaining road infrastructure in the Makhado Local Municipality focusing on the following towns, Makhado, Vuwani, Waterval and Dzanani only excluding unpaved communities and other small townships, namely Tshikota and Vleifontein. The objectives of the research were to determine the condition and effects of municipal road infrastructure within Makhado Local Municipality; to examine the legal framework governing the local municipality in the context of road infrastructure provision and maintenance as well as to recommend strategies to address challenges of road infrastructure within the municipality. The research employed both qualitative and qualitative in nature. A purposive research sampling approach was used to determine the inclusion of relevant respondents to the study. The research found out that the status of road infrastructure affect various people of different biographical background within the four towns of Makhado Local Municipality in a similar way. In the findings, the study highlight the fact that deteriorating roads conditions are often due to the following: a lack of professionals such as engineers to perform the necessary environmental scanning and identify problems in order to design the roads that suit the area, soil, landscape and climate and that other factors affecting the road infrastructure include corruption in procurement of road infrastructure projects; a lack of accountability of municipal officials; a lack or poor community involvement; and poor monitoring and maintenance of road projects. The study recommends that individuals with knowledge, expertise and skills be employed and further provide proper monitoring of the road projects.
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Guevara, Maldonado Jose Alberto. "Closing the Road Infrastructure Gap: Analysis of Expenditure Dynamics and Public-Private Partnership Shaping Challenges." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78258.

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The global infrastructure gap has continually widened over the last few decades. Industry reports and academic publications suggest that, in terms of road infrastructure, both advanced and developing economies have not paid sufficient attention to modernize their infrastructure assets. A wider road infrastructure gap signifies that highway conditions have declined because governments have not had enough resources for maintenance and rehabilitation. In the same way, it also indicates that congestion levels have grown and the level of service in most road networks has dropped because public agencies have not had sufficient funds to generate new highways and expand existing corridors. This dissertation, therefore, provided insights into the difficulties associated with improving the existing highway assets and the barriers related to expanding the current roadway capacity through public-private partnerships (PPPs). The research involved three interdependent studies. In the first study, I examined the continuous deterioration of the US highway system through a system dynamics model, which focused on the dynamics of capital investments and maintenance expenditures in the US road infrastructure. The results confirmed that the American highway system is currently stuck in a capability trap. This makes it difficult for the system to improve at the rates required by the country's economic growth. In my second investigation, my attention shifted toward the governance challenges related to building new roads and expanding highway capacity through PPPs. I developed a systems map of governance variables informed by past-published evidence from actual projects. By specifically examining the shaping phase of public-private initiatives, the work uncovered the effects of feedback relationships and interdependencies on PPP feasibility. This offered insights about the relationship between governance mechanisms and successful PPP development. In the third study, I utilized variables and relationships identified in my second investigation to develop a management flight simulator in order to better explain governance difficulties in the procurement phase of PPP projects. The simulator was implemented during an educational exercise with graduate students of civil engineering. By doing so, I confirmed that the simulator has the potential to increase our understanding of PPP procurement processes. Results indicated that the simulation tool was a suitable instrument to explain how government capacity, project uncertainty, and technical complexity influence PPP tendering. Overall, my findings across the three studies illustrate different means to understand why closing the global road infrastructure gap is challenging. Together, the three inquiries indicate that examining the road infrastructure sector as a socio-technical system contributes to improve our understanding of the expenditure dynamics related to existing assets and to enhance our comprehension of the governance challenges associated with developing new roads.
Ph. D.
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Kayondo-Ndandiko, Lydia Mazzi. "Geographical Information Technologies – Decision Support for Road Maintenance in Uganda." Doctoral thesis, Blekinge Tekniska Högskola, Sektionen för planering och mediedesign, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00539.

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This study set out to develop a framework within which the use of Geographical Information Technologies (GITs) can be enhanced in Road Infrastructure Maintenance (RIM) in Uganda. Specifically it was guided by 3 objectives; 1. To assess the gaps in the use of GITs for RIM in Uganda and the limitations to accessing these technologies, 2. To develop a methodological framework to enhance the use of GITs in RIM and 3. To develop a Geographical Information Systems for Transportation (GIS-T) data model based on the road maintenance data requirements. A participatory approach through a series of interviews, focus group discussions, workshop & conferences, document reviews, field observations & measurements and GIS analysis were employed. Based on the Spatial Data Infrastructure (SDI) concept and the principle of Causality, the gaps and limitations were established to mainly be concerned with data and organisational constraints as opposed to technical issues. They were classified to include; inadequate involvement of GITs in organisational activities, inappropriate institutional arrangements, absence of data sharing frameworks, budget constraints, insufficient geospatial capacity, digital divide in the perception, adoption & affordability of GITs among the stakeholders and the absence of a road maintenance Spatial Data Infrastructure (SDI). A methodological framework, comprising of 6 strategic components was developed to enhance the use of GITs in RIM. This included enactment of relevant policy components to guide GIT use, continuous capacity building, establishment of a road maintenance SDI, fostering collaboration and spatial data sharing frameworks, budgetary allocation based on defined activities inclusive of GIT initiatives, and adoption of a dynamic segmentation data model. Conceptual and logical data models were developed and proposed for the Sector. The conceptual model, presented using an entity relationship diagram, relates the road network to the point and line events occurring on it. The logical object relational model developed using the ESRI provided template represents the road and the point and line events in a total of 19 object classes. The Study concludes that in order to ground GIT benefits in the sector; technical, data and organisational concerns involved in GIT undertakings should be accorded equal emphasis. Institutionalisation and diffusion of GITs as aspects of the component strategies are regarded capacity building mechanisms earmarked to boost success in GIT initiatives. Further research on diffusion and funding models for GIT initiatives is recommended. It is suggested that aspects of the proposed model be considered when establishing GIT standards for the sector. The RIM sector is encouraged to embrace Science and Technology and to participate in Research and Development and particularly to adopt the culture of innovation considering the ready availability of off the shelf equipment, freeware and open source software that can foster informed decision making.
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Rashid, Arin. "An exploratory study of winter road maintenance and the use of vehicle data." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-178678.

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The Swedish road network is maintained by the Swedish Transport Administration, municipalities, and entrepreneurs with the goal of keeping the roads in satisfactory condition for traffic. The road operators are responsible for different roads and have several legislations that regulate construction and operation. One important aspect of winter road maintenance is the monitoring of the road situation ahead in order to call out resources for preventive measures. This study is performed at the company NIRA Dynamics with the purpose of going towards more digitized winter road information. The study explores different winter maintenance organizations in Sweden, investigates the importance of the information needed to be able to detect when roads are deemed too risky, and tries to gain an understanding of how the vehicle data provided by NIRA Dynamics best can provide a service for the winter road maintainers. This study is based on eight semi-structured interviews, user-tests aswell as a literature study. The findings of the study show that different winter maintenance organizations can differ a lot depending on the size and governing policies of the municipalities or entrepreneurs. The main differences can be found in their requirements and their method of monitoring the road situation ahead. The findings also show that the vehicle data is promising and has the potential to optimize and improve the overall winter maintenance planning. However, implementing and understanding the vehicle data in a real-world context requires collaboration from the different organizations to fulfill its value.
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Graham, Tennille. "Economics of protecting road infrastructure from dryland salinity in Western Australia." University of Western Australia. School of Agricultural and Resource Economics, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0207.

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[Truncated abstract] The salinisation of agricultural land, urban infrastructure and natural habitat is a serious and increasing problem in southern Australia. Government funding has been allocated to the problem to attempt to reduce substantial costs associated with degradation of agricultural and non-agricultural assets. Nevertheless, Government funding has been small relative to the size of the problem and therefore expenditure needs to be carefully targeted to interventions that will achieve the greatest net benefits. For intervention to be justified, the level of salinity resulting from private landholder decisions must exceed the level that is optimal from the point of view of society as a whole, and the costs of government intervention must be less than the benefits gained by society. This study aims to identify situations when government intervention is justified to manage dryland salinity that threatens to affect road infrastructure (a public asset). A key gap in the environmental economics literature is research that considers dryland salinity as a pollution that has off-site impacts on public assets. This research developed two hydrological/economic models to achieve this objective. The first was a simple economic model representing external costs from dryland salinity. This model was used to identify those variables that have the biggest impact on the net-benefits possible from government intervention. The second model was a combined hydro/economic model that represents the external costs from dryland salinity on road infrastructure. The hydrological component of the model applied the method of metamodelling to simplify a complex, simulation model to equations that could be easily included in the economic model. The key variables that have the biggest impact on net-benefits of dryland salinity mitigation were the value of the off-site asset and the time lag before the onset of dryland salinity in the absence of intervention. ... In the case study of dryland salinity management in the Date Creek subcatchment of Western Australia, the economics of vegetation-based and engineering strategies were investigated for road infrastructure. In general, the engineering strategies were more economically beneficial than vegetation-based strategies. In the case-study catchment, the cost of dryland salinity affecting roads was low relative to the cost to agricultural land. Nevertheless, some additional change in land management to reduce impacts on roads (beyond the changes justified by agricultural land alone) was found to be optimal in some cases. Reinforcing the results from the simple model, a key factor influencing the economics of dryland salinity management was the urgency of the problem. If costs from dryland salinity were not expected to occur until 30 years or more, the optimal response in the short-term was to do nothing. Overall, the study highlights the need for governments to undertake comprehensive and case-specific analysis before committing resources to the management of dryland salinity affecting roads. There were many scenarios in the modelling analysis where the benefits of interventions would not be sufficient to justify action.
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Kgamanyane, Moeti. "The importance of road transport infrastructure development and maintenance in trade facilitation : a South African case." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/20082.

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Road transportation is the most frequently used means of transporting goods and people in much of sub-Saharan Africa. Furthermore, because of the region's geographic nature, where many of the countries are landlocked, imports and exports of goods happen primarily by land and in this case by road transport. This is primarily due to the fact that other means of surface transportation like rail and navigable rivers are not well developed. Nonetheless, the lack of complementarity between the two land transportation modes, that is rail and road, has led to the over usage of the road. This has invariably led to congestion and deterioration of the road network with minimal investment in both the development and maintenance of the road infrastructure. Though there is an acknowledgement of this problem and attempts to address it through efforts like the Programme for Infrastructural Development in Africa (PIDA), and regionally in SADC thorough the adoption of the SADC Regional Infrastructure Development Master Plan Vision 2027 (RIDMP), much effort still needs to be put within individual countries to develop and maintain primary road networks that are able to connect to regional trade corridors.
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Redondin, Maxime. "Approches de classifications à partir de données fortement censurées pour l'analyse de fiabilité et la définition de stratégies de maintenance : application aux marquages routiers dans un contexte de véhicules autonomes." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1118/document.

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La qualité et la fiabilité des infrastructures routières jouent un rôle majeur dans la sécurité routière. Cela est d'autant plus vrai lorsque qu'on s'intéresse à la circulation de véhicules autonomes qui doivent être capables à terme de circuler seuls dans l'environnement routier. Les récents travaux menés au sein de VEDECOM montrent qu'une signalisation horizontale routière claire et visible est importante dans sa prise de décision. La détection des lignes de marquage sont en grande partie réalisée par des caméras. Afin d'optimiser cette approche et prévenir les situations de non détection, cette thèse propose des outils d'analyse de fiabilité et d'aide à la maintenance de la signalisation horizontale. Aujourd’hui, la fiabilité des marquages est basée le phénomène de rétro-réflexion : un véhicule éclaire avec ses feux de croisement un marquage qui renvoie la lumière vers le conducteur. Pour établir son niveau de dégradation, des campagnes d'inspection sont réalisées par des rétro-réflectomètres montés sur des véhicules traceurs. La littérature des trente dernières années présente essentiellement des modèles de dégradation basés sur des méthodes de régression. Ces derniers présentent de nombreuses difficultés à être déployés dans le cadre d'un plan de maintenance. Cette thèse propose d'aborder ces questions sous l'angle de la théorie de la fiabilité et de la maintenance tout en tenant compte des pratiques actuelles. Une ligne de marquage est ici interprétée comme un système multi-composants monté en parallèle. Cette thèse propose de l'analyser en quatre points. Premièrement, l'ensemble des inspections est formalisé en une base de suivi. Si des données sont manquantes et si l'historique de maintenance est indisponible, alors différentes approches basées sur une Classification Ascendante Hiérarchique (CAH) sont proposées afin de les estimer. Deuxièmement, l'entretien de la totalité d'une ligne est logistiquement délicat. Une CAH de la base de suivi a pour fonction d'établir les marquages suivant un même modèle de dégradation. Les clusters sont géographiquement localisés et corrélés à des situations précises comme un échangeur ou une agglomération. Pour ces raisons, ils sont interprétés comme des zones de maintenance stratégiques. Troisièmement, réaliser une analyse de Weibull des marquages. Les rétro-réflectomètres n'indiquent pas précisément les instants de défaillance. Ils sont statistiquement censurés à gauche, à droite ou par intervalle. En alternative à la méthode du Maximum de Vraisemblance, une approche basée sur un algorithme EM est proposé afin d'établir le modèle de Weibull et les censures estimées les plus vraisemblables. Dernièrement, deux stratégies de maintenance sont proposées : systématique par rapport à l'âge et conditionnée par la dégradation courante. Elles sont en adéquation avec les pratiques de maintenance. La première permet une gestion passive de l'entretien tandis que la seconde permet une connaissance avancée de la ligne de marquage dans le temps. A partir d'un système multi-composants non réparable et fortement censuré, les composants suivant un même modèle de dégradation sont classables, chaque groupe connait un modèle de durée de vie et finalement il est possible de déduire un plan de maintenance adapté
The quality and reliability of road infrastructure and its equipment play a major role in road safety. This is especially true if we are interested in autonomous car traffic. Recent papers from VEDECOM Institut proves that a clear and reliable road marking is important in it decison making. Marking lanes are detected by camera. These markings need an accurate maintenance strategy to guarantee that the markings remain perceptible. This report proposes different solutions based on the reliabilty and maintenance theory. Today, the markings reliability is based on the retroreflective illuminance. A retroreflective marking reflects light from a vehicle headlight back in the direction of the driver. Marking retroreflectivity can be dynamically inspected using a retroreflectometer. The litterature of the last thirty years proposes degradation models for retroreflective marking based on a regression model. All of them have a common weakness: they are difficult to apply directly to a given road network. This report presents maintenance models who math with current maintenance actions. A marking lane is interpreted as multi-unit systeme. All unit are laid in parallel. The global maintenance strategy is based on four points. First, the whole inspection data is formalized into one monitoring base. If inspection data is missing or if the maintenance historic is unavailable else an estimation process based on the Agglomerative Hierarchical Clustering (AHC) is proposed. Second, to replace a whole markings lane is logistically difficult to work. Again, an AHC of the monitoring proposed several clusters. Each cluster presents it own degradation model. Clusters are geographically tracked and correlated to specific situation (interchange, urban area, bypass...). That's why a cluster is interpreted as a maintenance strategic area. Thirdly, a Weibull analysis of each cluster is done. Current retroreflectometers cannot detects the exact faillure moment. this information is statistically censored. Three cases are identified : left, right and interval censored. To parameter a Weibull model, an EM Algorithm is propoased as an alternative to the Maximum Likelihood Estimator. This algorithm is also an estimator to censored markings life time. Lastly, two classic preventive maintenance strategies are proposed : systematic according to the age and conditionned to the current degradation. Each one is credible according the current maintenance practice. The first prposed a passsive managament of the markings maintenance. The second ensures an advanced knowledge of the road network over the time. On a multi-unit system no-repairable and strongly censored, units which admit the same degradation model are identified by a clustering approach. Each cluster present it own Weibull analysis. Finally, an adapted maintenance strategy is done
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Wennström, Jonas. "Life Cycle Costing in Road Planning and Management : A Case Study on Collision-free Roads." Licentiate thesis, KTH, Bro- och stålbyggnad, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154271.

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Construction of infrastructure does not only mean large capital investments but also future costs to operate and maintain these assets. Decision making in planning and design of roads will impact the need of future operation and maintenance activities. Additionally, infrastructure management is often under increasing pressure of aging structures, limited budgets and increased demands from public which require transparency in the decision making. Life cycle costing is a methodology that takes into account costs throughout an asset’s life cycle including investment, operation, maintenance and disposal. Despite the methodology’s existence for more than 40 years, the practical application is often reported to be scarce in both private and public sectors. Implementation in road planning and management means a high complexity where the life cycle costing can to be applied from early planning, design, construction and management in which all influence life cycle cost. Life cycle costing can also be applied in many different ways, level of detail and for different type of studies. For effective implementation of life cycle costing in road planning, design and management, different considerations need to be understood. In this thesis the application of life cycle costing has been studied through case study research. The main case selected was an investment to convert a single carriageway road to a, so called, sparse collision-free road. Through widening and separation between driving directions the traffic safety is significantly improved. However, in recent years increased operation and maintenance costs have been associated with the road type. Especially concerns regarding increased road user cost during road works have been expressed. This case was examined in two case studies from different perspectives. The first one was to study the implications on project appraisal and the second one examined the possibility to optimise pavement design. Results from cost benefit analyses based on established road appraisal techniques indicated that operation and maintenance related costs had limited impact on profitability. The second study also indicated that future cost can be influenced differently depending on criteria for optimal alternative. Based on economic analyses using established techniques, increased operation and maintenance liabilities appear to be of limited concern, in contrary to the perception. In future research this need to be set in context of road management with refined analysis in order to study implications for future management.

QC 20141028

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Books on the topic "Road infrastructure maintenance"

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Law Library of Congress (U.S.). Global Legal Research Directorate. National funding of road infrastructure. Washington, D.C.]: The Law Library of Congress, Global Legal Research Center, 2014.

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Victoria. Parliament. Road Safety Committee. Rural road safety and infrastructure: Report of the Road Safety Committee on the Inquiry into Rural Road Safety and Infrastructure. [Melbourne]: Government Printer, 2002.

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Vlasov, Vladimir, Veniamin Bogumil, and Ali Baytulaev. Digital infrastructure and telematics systems for monitoring the maintenance of roads. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1014643.

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The textbook gives the concept of digital infrastructure, shows its role as the technological basis of modern telematics systems for monitoring the maintenance of roads. The issues of creating and using elements of digital infrastructure in the road sector, as well as technological processes of automated control of maintenance of roads, streets, and highways are considered. The requirements for the main functions and characteristics of the telematics equipment of road vehicles and mechanisms are given. The material of the manual is based on the results of theoretical research and practical work on the creation and implementation of automated control systems for the maintenance of roads. Meets the requirements of the federal state educational standards of higher education of the latest generation. For students studying in technical areas of training and specialties.
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Wasike, Wilson S. K. Road infrastructure policies in Kenya: Historical trends and current challenges. Nairobi, Kenya: Kenya Institute for Public Policy Research and Analysis, 2001.

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Peters, Olubunmi O. The challenges of road development and maintenance in Nigeria: Paper presented at the Federal University of Technology, Akure. Akure, Nigeria: School of Engineering and Engineering Technology, 2009.

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Round Table on Transport Economics (135th 2005 Paris, France). Report of the One Hundred and Thirty Fifth Round Table on Transport Economics: On the following topic : transport infrastructure charges and capacity choice : self-financing road maintenance and construction. Paris: OECD, 2007.

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Office, General Accounting. Transportation infrastructure: A comparison of federal and state highway laws : report to congressional requesters. Washington, D.C: The Office, 1990.

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Connecticut. General Assembly. Legislative Program Review & Investigations Committee. Transportation infrastructure renewal program. Hartford, CT: The Committee, 1997.

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Eficiência econômica, riscos e custos ambientais da reconstrução da rodovia BR-319. Lagoa Santa, MG, Brasil: Conservação Estratégica, 2009.

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Papua New Guinea. Auditor-General's Office. The report of the the Auditor-General on Sepik Highway Roads and Bridges Maintenance and Other Infrastructure Trust Account. Waigani, Papua New Guinea: Auditor-General of Papua New Guinea, 2006.

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Book chapters on the topic "Road infrastructure maintenance"

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Arshad, Ahmad Kamil, Ekarizan Shaffie, Mohd Izzat A. Kamal, Mat Zin Hussain, and Nuryantizpura M. Rais. "Application of Pavement Evaluation for Road Maintenance and Rehabilitation." In Green Infrastructure, 159–77. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6383-3_10.

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Szubert, Ludomir. "Environmental Protection in Design, Construction and Maintenance of the Roads — Studies Financed by the Polish Road Administration." In Transportation Infrastructure, 387–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-61092-9_35.

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Dung, Nguyen Thi Tuyet, and Nguyen Quynh Sang. "Effective Capital Usage Solutions for Road Infrastructure Maintenance in Vietnam." In Lecture Notes in Civil Engineering, 989–94. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0802-8_158.

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Zhang, Peiliang, Jinyan Liu, Yingbiao Wu, and Jinjin Shi. "Application of Graded Crushed Stone Base in Urban Road Asphalt Pavement." In Infrastructure Sustainability Through New Developments in Material, Design, Construction, Maintenance, and Testing of Pavements, 11–20. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79644-0_2.

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Psarianos, B., M. Kontaratos, C. Liapakis, M. Lenz, and T. Rupp. "Perspectives of Implementing Automated and Robotic-Based Techniques in Road Infrastructure Construction and Maintenance Operations." In Advances in Manufacturing, 409–19. London: Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0855-9_36.

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Ait-Lamallam, Sara, Imane Sebari, Reda Yaagoubi, and Omar Doukari. "Towards an Ontological Approach for the Integration of Information on Operation and Maintenance in BIM for Road Infrastructure." In Proceedings of Sixth International Congress on Information and Communication Technology, 701–12. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2377-6_65.

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Eckmann, Bernard, Frédéric Delfosse, Philippe Poilane, and Bruno Taillis. "Low-energy and Environmentally-friendly Solutions for Road Maintenance." In Materials and Infrastructures 1, 349–63. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119318583.ch25.

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Simonetti, Silvia, Agostino Currà, Salvatore Minniti, and Maurizio Modafferi. "GIS Roads Cadastre, Infrastructure Management and Maintenance." In Lecture Notes in Networks and Systems, 2045–53. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06825-6_196.

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Hankach, Pierre, and Philippe Lepert. "Selecting a Road Network Maintenance Strategy to Achieve the Operator's Objectives." In Materials and Infrastructures 1, 381–95. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119318583.ch27.

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Reynaers, Anne-Marie. "Applying a Qualitative Case Study Approach to Study Values in Public–Private Partnerships." In Researching Values, 263–78. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90769-3_15.

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AbstractPublic–private partnerships (PPPs) are used for the provision of public infrastructure such as roads, schools and hospitals and related services such as maintenance, cleaning and catering. They are often considered to be an organisational manifestation of the new public management (NPM) paradigm. Whereas critical scholars suggest that the introduction of private sector management techniques and values into the public sector may harm so-called public values such as accountability, transparency and quality, supporters of the NPM paradigm believe the opposite, even suggesting that public values may be strengthened. This chapter goes beyond the often normative debate on the desirability of PPPs to instead describe how a multiple qualitative case study approach analysing how actors in PPPs give meaning to public values in practice can be applied to assess the extent to which public values are safeguarded in PPPs.
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Conference papers on the topic "Road infrastructure maintenance"

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Vandoorne, Rick, and Petrus Gräbe. "Uncertainty and Risk Quantification in Railway Maintenance Modelling." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.704.

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Najeh, Ikram, Laurent Bouillaut, Dimitri Daucher, and Maxime Redondin. "Dynamic Grouping Maintenance Policy for the Road Infrastructure." In Proceedings of the 31st European Safety and Reliability Conference. Singapore: Research Publishing Services, 2021. http://dx.doi.org/10.3850/978-981-18-2016-8_185-cd.

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Abrashitov, Alexandr, A. V. Semak, and A. A. Sidrakov. "Experimental Investigation Of Stoneblowing And Under Sleeper Pads Railway Maintenance Techniques." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.729.

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Bele, K., M. Munsamy, and A. Telukdarie. "Case Study: Evaluation of Maintenance Practices on Road Infrastructure." In 2022 IEEE 28th International Conference on Engineering, Technology and Innovation (ICE/ITMC) & 31st International Association For Management of Technology (IAMOT) Joint Conference. IEEE, 2022. http://dx.doi.org/10.1109/ice/itmc-iamot55089.2022.10033248.

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Jokanovic, Igor, Bojana Grujić, Dragana Zeljić, Žarko Grujić, and Mila Svilar. "Costs of performance based maintenance for unpaved local roads: Case study Albania." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.803.

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Bezuglyi, Artem, Sergii Illiash, and Oleksandr Tymoshchuk. "Ways to create a competitive environment in the area of operational maintenance of roads." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.696.

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Matsumura, Itaru, Kazuyoshi Nezu, Takuro Kawabata, and Yusuke Watabe. "Development of contactless measurement device for overhead contact line." In 6th International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2021. http://dx.doi.org/10.5592/co/cetra.2020.1011.

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In order to reduce maintenance labor of overhead contact lines (OCL), a contactless measurement device for OCL was developed. This device is mounted on a roof of a vehicle of a train and measures static three-dimensional positions of wires of OCL and detects positions of OCL fittings without touching the OCL while the train is running. We proposed hybrid sensing method that combines stereo measurement by image processing with structure measurement by laser range scanners and it realized to measure OCL geometry with high-precision even in sections with complicated OCL structure. In addition, we developed position detection method of the OCL fittings that can cope with changes in height and stagger of OCL by using machine learning. Measurement data of OCL contactless measurement device is static position of OCL without influence of a probe such as a pantograph. With this device, the OCL static position can be measured continuously instead of at each support point or dropper point. For maintenance of OCL, the criterion of OCL is defined as a static position. The device is utilizable for OCL maintenance and it sophisticate maintenance of OCL. For example, this device realize the height difference measurement of the crossing section, which has been conventionally measured by maintenance workers. In addition, the device are utilizable for OCL fittings inspection. Maintenance workers can check the image of OCL fittings without on foot into the field. Furthermore the static position data of OCL can be used to create simulation model of OCL dynamic behavior. Using this model, it is possible to know the dynamic response of cases where various pantographs pass at various speeds. Running tests was conducted on commercial line, and the performance of the device was verified when running at a speed of 130 km/h. The results shown that the repeated measurement accuracy is within 10 mm, and the OCL fitting detection rate is 90 % or more.
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Najeh, Ikram, Laurent Bouillaut, Dimitri Daucher, and Maxime Redondin. "Maintenance Strategy for the Road Infrastructure for the Autonomous Vehicle." In Proceedings of the 29th European Safety and Reliability Conference (ESREL). Singapore: Research Publishing Services, 2020. http://dx.doi.org/10.3850/978-981-14-8593-0_3575-cd.

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Gardiner, John. "The planning and funding of road infrastructure via PPPs." In International Symposium for Next Generation Infrastructure. University of Wollongong, SMART Infrastructure Facility, 2014. http://dx.doi.org/10.14453/isngi2013.proc.65.

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The shortfall in the funding for construction, operation and maintenance of road infrastructure in Australia is substantial and future investment appears to be beyond the capabilities of government funding alone. In the past, the private sector has proven very willing to invest in PPPs with government to provide road infrastructure and, overall, its performance in relation to construction, operation and maintenance has been far superior to that of government and has relieved government of substantial risk. However, it is unlikely that the private sector will accept the same levels of risk on new PPPs as in the past.
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Kušter Marić, Marija, Jelena Bleiziffer, Anđelko Vlašić, Joško Ožbolt, Ana Mandić Ivanković, Mladen Srbić, Dominik Skokandić, et al. "In-service performance of road concrete bridges – set up of case studies for novel pro-active maintenance methodology." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.948.

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Reports on the topic "Road infrastructure maintenance"

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Beiker, Sven. Unsettled Issues Regarding Communication of Automated Vehicles with Other Road Users. SAE International, November 2020. http://dx.doi.org/10.4271/epr2020023.

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The focus of this SAE EDGE™ Research Report is to address a topic overlooked by many who choose to view automated driving systems and AVs from a “10,000-foot” perspective: how automated vehicles (AVs) will actually communicate with other road users. Conventional (human-driven) vehicles, bicyclists, and pedestrians already have a functioning system of understating each other while on the move. Adding automated vehicles to the mix requires assessing the spectrum of existing modes of communication – both implicit and explicit, biological and technological, and how they will interact with each other in the real world. The impending deployment of AVs represents a major shift in the traditional approach to ground transportation; its effects will inevitably be felt by parties directly involved with the vehicle manufacturing and use and those that play roles in the mobility ecosystem (e.g., aftermarket and maintenance industries, infrastructure and planning organizations, automotive insurance providers, marketers, telecommunication companies). Unsettled Issues Regarding Communication of Automated Vehicles with Other Road Users brings together the multiple scenarios we are likely to see in a future not too far away and how they are likely to play out in practical ways.
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Agrawal, Asha Weinstein, Hilary Nixon, and Cameron Simmons. Investing in California’s Transportation Future: Public Opinion on Critical Needs. Mineta Transportation Institute, December 2020. http://dx.doi.org/10.31979/mti.2020.1861.

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In 2017, the State of California adopted landmark legislation to increase the funds available for transportation in the state: Senate Bill 1 (SB1), the Road Repair and Accountability Act of 2017. Through a combination of higher gas and diesel motor fuel taxes, SB1 raises revenue for four critical transportation needs in the state: road maintenance and rehabilitation, relief from congestion, improvements to trade corridors, and improving transit and rail services. To help state leaders identify the most important projects and programs to fund within those four topical areas, we conducted an online survey that asked a sample of 3,574 adult Californians their thoughts on how the state can achieve the SB1 objectives. The survey was administered from April to August 2019 with a survey platform and panel of respondents managed by Qualtrics. Quota sampling ensured that the final sample closely reflects California adults in terms of key socio-demographic characteristics and geographic distribution. Key findings included very strong support for improving all transportation modes, reducing air pollution and greenhouse gas emissions from transportation, and more convenient options to travel without driving. Respondents placed particular value on better maintenance for both local streets and roads, as well as highways. Finally, the majority of respondents assessed all types of transportation infrastructure in their communities as somewhat or very good.
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Moghtadernejad, Sara, Ehsan Barjasteh, Ren Nagata, and Haia Malabeh. Enhancement of Asphalt Performance by Graphene-Based Bitumen Nanocomposites. Mineta Transportation Institute, June 2021. http://dx.doi.org/10.31979/mti.2021.1918.

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As the State of California continues to grow, demand for enhanced infrastructure such as roadways and highways escalates. In view of the current average highway lifespan of 15–20 years, the improvement of asphalt binders leads to material sustainability by decreasing required maintenance and increasing the lifespan of roadways. In the present investigation, enhancement of asphalt binder properties was achieved by different methods of mixing varying compositions of graphene nanoparticles with an SBS polymer and asphalt binder. Additionally, experimental evaluation and comparison of the rheological and mechanical properties of each specimen is presented. Graphene nanoparticles have attracted great curiosity in the field of highway materials due to their incredible rigidity, even in small quantities. Addition of as little as 1.0%nanoparticles in combination with polymers in an asphalt binder is expected to increase the rigidity of the material while also maintaining the beneficial polymer characteristics. Evaluation of the effect of the mixing design established that the methods for application of graphene to the polymer-modified asphalt binder are critical in the improvement of a roadway, resulting in resistance to premature aging and strain from constant road operation.
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Chiavassa, Nathalie, and Raphael Dewez. Technical Note on Road Safety in Haiti. Inter-American Development Bank, January 2021. http://dx.doi.org/10.18235/0003250.

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The IDB has been a predominant partner supporting Haiti development efforts for many years. Nowadays, the IDB is the main source of investment for the country. Considering the vital weight of road transport sector in the socio-economy of the country, the IDB has concentrated a large part of investment efforts in rehabilitating and improving national road infrastructures. In the same time, a rapid increase of motorization and relatively higher speeds have contributed to increasing the number of traffic fatalities and injuries. In 2017, road injuries were the fifth cause of mortality in Haiti. The Road Safety situation of the country is preoccupying with many Vulnerable Road Users involved, in particular pedestrians and motorcyclists. The country is facing multi-sector challenges to address this Road Safety situation. Despite recent efforts, high political will has not been continuous in promoting a multi-sector coordination and the success of technical efforts remained mitigated over the last years. Road user awareness is still weak in the country. Risk factors include dangerous driving, bad safety conditions of vehicles, together with limited law enforcement and poor maintenance of safety devices on the roads. In this context, the Road Safety situation of the country may be getting worse in the coming years if no action is taken. However, the new Decade provides with a unique opportunity to achieve Sustainable Development Goals (SDGs) including significant progress in reducing the burden of traffic crashes. The IDB has already initiated vital investments in modernizing crash data collection, promoting institutional dialogue and supporting capacity building in the area of Road Safety. Future actions to address Road Safety challenges in Haiti in the framework of the five UN five pillars would require a range of investments in the area of political commitment, institutional coordination and technical efforts. A change of political paradigm from making roads for travelling faster to making roads safer for all users is highly needed at national level. This technical note on Road Safety in Haiti present the current situation of the country and provides with recommendations for future actions on Road Safety.
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Li, Howell, Enrique Saldivar-Carranza, Jijo K. Mathew, Woosung Kim, Jairaj Desai, Timothy Wells, and Darcy M. Bullock. Extraction of Vehicle CAN Bus Data for Roadway Condition Monitoring. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317212.

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Obtaining timely information across the state roadway network is important for monitoring the condition of the roads and operating characteristics of traffic. One of the most significant challenges in winter roadway maintenance is identifying emerging or deteriorating conditions before significant crashes occur. For instance, almost all modern vehicles have accelerometers, anti-lock brake (ABS) and traction control systems. This data can be read from the Controller Area Network (CAN) of the vehicle, and combined with GPS coordinates and cellular connectivity, can provide valuable on-the-ground sampling of vehicle dynamics at the onset of a storm. We are rapidly entering an era where this vehicle data can provide an agency with opportunities to more effectively manage their systems than traditional procedures that rely on fixed infrastructure sensors and telephone reports. This data could also reduce the density of roadway weather information systems (RWIS), similar to how probe vehicle data has reduced the need for micro loop or side fire sensors for collecting traffic speeds.
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