Academic literature on the topic 'SIDRA Intersection'
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Journal articles on the topic "SIDRA Intersection"
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Ranjitkar, Prakash, Amin Shahin, and Fasihullah Shirwali. "Evaluating Operational Performance of Intersections Using SIDRA." Open Transportation Journal 8, no. 1 (December 9, 2014): 50–61. http://dx.doi.org/10.2174/1874447801408010050.
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Traffic congestion has significant social, economic and environmental costs associated with it. Efficiency of intersections contributes significantly towards the efficiency of whole urban road networks as they are the main bottlenecks in the system. This paper presents a comparative analysis of the operational efficiency of priority controlled, roundabout and signalised intersections under a range of traffic conditions with different volume and turning ratios using SIDRA software. We used three measures to represent the operational efficiency namely: intersection capacity, average delay and total emissions. The analysis revealed strengths and weaknesses of each intersection types under a range of demand and traffic conditions. At low traffic demand, priority controlled intersections outperformed the other two forms of intersection control. At moderate traffic demand, roundabout performed the best while at high traffic demand, signalised intersections performed the best.
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Demir, Hatice G., and Yusuf K. Demir. "A Comparison of Traffic Flow Performance of Roundabouts and Signalized Intersections: A Case Study in Nigde." Open Transportation Journal 14, no. 1 (July 6, 2020): 120–32. http://dx.doi.org/10.2174/1874447802014010120.
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Background: Intersections affect the safety and capacity of urban traffic. Therefore, the design and selection of the type of intersection need to be made very carefully. According to the demand level, a different intersection can be designed. Signalized intersections are one of the intersection types in which the sequence and duration of the flow at the intersection are provided by the lights. Generally, this type of intersection is used on roads with high traffic volume. Modern roundabouts are one of the types of circular intersections that provide advantages over other types of intersection in terms of smooth operation and safety. Modern roundabouts exist in several types today worldwide. In practice, the distinction about the kinds of roundabouts would not be fully clarified; as a result, queuing and delay can be seen as negative effects. Methods: In this study, to make a distinction and clarify the kinds of roundabouts, first, the roundabouts types are introduced according to geometric and operational aspects. A signalized intersection, where a circular island is placed and also signalized, was investigated in terms of capacity, delay, and emissions located in Niğde. The traffic flow performance of the current state (nested signalized roundabout) was calculated with HCM Method (for signalized intersection) using SIDRA and compared with roundabout solutions of the intersection with HCM6 (for roundabout) method using SIDRA Intersection analysis software. Results: From the results of the intersection capacity analysis study based on HCM6, it was seen that the application of a roundabout scenario (intersection considered as a modern roundabout) showed higher performance at the intersections than the intersection having a secondary signal. Capacity increased to 67.8%, the average delay decreased to 72.8% and 95th percentile queue dropped to 82.2%. Conclusion: Roundabout controlling instead of a nested signal system can be an example of the increase in the performance of traffic flow. This highlights the importance of choosing the appropriate roundabout design.
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Zanjad, Shradha S. "An Efficient Scheduling of Flyover at Grade Intersection under Mixed Traffic Environment." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (July 15, 2021): 824–33. http://dx.doi.org/10.22214/ijraset.2021.36484.
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A flyover is a bridge constructed along an intersecting highway over an at-grade intersection. It allows two –direction traffic to flow at free flow speed on the bridge. The flyover is one of the methods for solving traffic problems at at-grade junctions on highways including capacity, congestion, long delay and queue length. Traffic signalization at the upgraded intersection often uses the same fixed time control plans, even after the installation of a flyover over the intersection. Most of the flyovers in India are constructed at the junctions on highway bypasses of big cities. The present work deals with a efficient scheduling of flyover at the grade intersection under the mixed traffic environment. From the results and the modeling carried out in the “SIDRA Intersection” software different points are observed. The present work consists of the Proposed Intersection at Rajkamal Square, Amravati.
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Tianzi, Chen, Jin Shaochen, and Yang Hongxu. "Comparative Study of VISSIM and SIDRA on Signalized Intersection." Procedia - Social and Behavioral Sciences 96 (November 2013): 2004–10. http://dx.doi.org/10.1016/j.sbspro.2013.08.226.
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Sofia, Gandhi, Abdulhaq Al-Haddad, and Israa Saeed Al-Haydari. "Improvement of traffic performance at intersections in Karbala city." MATEC Web of Conferences 162 (2018): 01032. http://dx.doi.org/10.1051/matecconf/201816201032.
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This study deals with the evaluation of traffic performance at the road network around the old city of Karbala from the southern side, at Al-Tarbia Street and Fatima Al-Zahraa Street, through the evaluation of intersections performance. This is followed by suggestions of some improvement proposals, which vary from changing timing plan, geometric improvement, to change intersection type completely. The study area composed of seven intersections, three intersections are four legs signalized, and the other four are roundabouts. The video recording technique is used to collect the traffic data for 27 approaches. These data are abstracted from video films using EVENT program, and processed by prepared EXCEL sheets. While, the spot speed data for each entire link in the network are collected using pavement marking method. SYNCHRO software was used for evaluation and analysis of signalized intersections, suggestion of best timing plan, and coordination. SIDRA INTERSECTION software was used for evaluation and analysis of both signalized intersections and roundabouts. The best proposal was also evaluated for the target year.
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B. Z. Alshetwi, Abduraouf, Riza Atiq Abdullah O.K. Rahmat, Muhamad Nazri Borhan, Shaban Ismael Albrka Ali, and Hamza Imhimmed Mohamed Irtema. "Application of Sidra 4.0 Software Traffic Flow in Intersection in Kuala Lumpur." International Journal of Engineering & Technology 7, no. 2.29 (May 22, 2018): 696. http://dx.doi.org/10.14419/ijet.v7i2.29.14000.
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Traffic signals are one of the most effective Traffic Flow and flexible active traffic control utilized extensively in a number of global cities. The traffic signal benefits include an organized traffic movement, an increased intersection capacity and needs only modest geometric design. Furthermore, there are numerous significant methods in improving network performance by directing the traffic lights’ flow at the intersection. This study showed, together with the capability of improving the level of service (LOS), the intersection light signal volume, fuel consumption (FUC), average delay (AVD), operating costs (OPC), Carbon dioxide emissions (CO2E) and travel speed (TS). The Jalan Kampung Pandan intersection light signal capacity is 1985.3, Jalan Imbi – Raja Chulan 1793.2 and Jalan Imbi 3238.1. The FUC present condition is approximately 58,881.3 lit/s from Jalan Raja Imbi- Chulan, in addition to 34,687.6 lit/s Jalan Kampung Pandan on the trip, along with 55,173.6 lit/s to Jalan Imbi railway journey. Additionally, the results displays that the quantity of OPC acquired was 1138847.2 RM/hr for Jalan Raja Imbi- Chulan, 659235.5 RM/hr for Jalan Kampung Pandan and 1054115.7 RM/hr for Jalan Imbi. The CO2E results amount of CO2E attained were 147203.3 to Jalan Raja Imbi- Chulan, in addition to 86719.1 Jalan Kampung Pandan and 137934. To Jalan Imbi. Peak Travel speed at TS intersection current status is approximately 0.5 km/h from Jalan Imbi- Raja Chulan, along with 0.8 km/h for Jalan Kampung Pandan in the trip, together with 1.2 km/h to Jalan Imbi on a trip.
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Mohammed, Ali, Hassan Jony, Alaa Shakir, and Kamarudin Bin Ambak. "Simulation of traffic flow in unsignalization intersection using computer software SIDRA in Baghdad city." MATEC Web of Conferences 162 (2018): 01035. http://dx.doi.org/10.1051/matecconf/201816201035.
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Computer simulation is a vital means for the examination of expressways and urban lanes and streets. Transportation experts concentrate on the arrangement and dissemination of traffic jams on roadways. The objective of this study is to calculate and analyses the travel time, delay time, degree of saturation, and level of service and travel speed in Jordan intersection in Baghdad, Iraq using Sidra software. The number of vehicles passing Jordan intersection was recorded by the author of this work from 7am to 3pm for four days. A simulation model has been used to assess the performance of the current intersection. Results demonstrated that the level of service (LOS) for Jordan intersection is D with (35 sec/veh) average delay and degree of saturation (0.996 v/c). It was concluded that Jordan intersection needs further developments like using intelligent transportation system application (ITS) to regulate traffic signals, whereby reducing traffic jam, using closed circuit TV (CCTV) might assist traffic office in identifying jam point to reduce traffic jam.
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Bakie, Nisa Aqila. "Existing Road Performance of the New Development of Sibu Central." Journal of Engineering and Science Research 4, no. 1 (March 10, 2020): 7–13. http://dx.doi.org/10.26666/rmp.jesr.2020.1.2.
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The proposed development of Sibu Central hinges on the fact that it attracts high number of visitors from all over Sarawak. The development of Sibu Central would definitely improve the surrounding areas in future as Sibu Central will be one of the landmarks for Sibu. This development therefore will automatically generate more road traffic which will affect the performance of the existing road. The performance of the existing road was evaluated by two signalized intersections surrounding the proposed development of Sibu Central. It was carried out in order to determine the current traffic volume data, upon the completion of Sibu Central and 5 years after the development was completed. The road performance of Intersection 1 and Intersection 2 was analysed by using Sidra software. It was found that the existing road was still within the satisfactory performance, as the Level of Service (LOS) was in the range of LOS A until LOS D. This was due to the current traffic volume that was still under the capacity of the existing road which also influenced the satisfactory result for Volume by Capacity (V/C) ratio, average delay and queue length of all directions in Intersection 1 and Intersection 2. This result will not be adequate as the capacity of the road still remains unchanged due to the fact that the traffic volume keeps on increasing every year. The deterioration of the existing road in Intersection 1 and Intersection 2 was established in this study based on the performance of LOS, V/C ratio, average delay and queue length.
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Zanjad, Shradha S. "Scheduling of Flyover at Grade Intersection for Amravati." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (July 15, 2021): 834–40. http://dx.doi.org/10.22214/ijraset.2021.36486.
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This work concerns the effective planning of flight at the intersection of classes under a mixed traffic environment. From the results and simulations performed in the SIDRA Intersection software, different points are observed. This work consists of a proposed crossing in Rajamal Square, Amravati. The area is highly populated, and this place offers the need for a good quality intersection. The graph shows that the turn of the 95% of the worst lane of the car per year increases as the year increases. The maximum value is 0.011. The graph shows that the stopping speed, which is detected, decreases as the year increases. The minimum value of the stopping speed is 0.5485. The graph shows that productivity increases over time. The maximum value of the performance index is 0.30.
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Bjelošević, Radenka, Dragan Gataric, Aleksandar Đukić, Milan Sandić, Mladen Pajić, and Stojan Stevanović. "Evaluation of conditions in the traffic flow on the crossroad of the main road M4 and Milutin Milankovic Boulevard in Banja Luka." Put i saobraćaj 66, no. 1 (March 26, 2020): 31–46. http://dx.doi.org/10.31075/pis.66.01.08.
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The design and construction of roundabouts, as a solution that will replace the classic intersection, has great application in our area, because it has proven to be the best traffic solution. The aim of this paper is to determine whether the roundabout will provide better traffic conditions than a traffic light. Baseline data were collected by counting traffic at the intersection in question and then processed in the SIDRA INTERSECTION software program. The program analysis covers the following criteria: service level, time losses, costs and emissions. Reducing speed has increased the safety of all road users, which in addition to the environmental aspect is the most important positive effect. With traffic congestion, traffic intensity and service levels have been raised. The construction of the roundabout would continue the trend of construction of roundabouts in Banja Luka, which, in addition to traffic amenities, gives this city an aesthetically pleasing new dimension.
Dissertations / Theses on the topic "SIDRA Intersection"
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Ekman, Anna-Karin. "Calibration of traffic models in SIDRA." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-94542.
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This thesis studies calibration of SIDRA Intersection roundabout models. The calibration has been performed with three different methods; manual calibration of gap-acceptance parameters, manual calibration of the parameter environment factor and automatic calibration of the environment factor based on optimization. The main aim has been to evaluate and compare 3 the three methods. One part of the purpose was also to test the possibility of finding a general value of environment factor by testing a few different types of models. SIDRA Intersection is a micro-analytical model used for capacity and performance estimations. The capacity model is based on gap-acceptance theory where follow-up headway and critical gap have a great impact. An application for automatic calibration was developed in Microsoft Excel/VBA. The calibration process is based Differential evolution and the cost function uses root mean square percent error where capacity and average delay are used as performance measures. The application has been tested with a test model at first to make sure the calibration is correct. The application has then been tested on data from a site in Farsta, Stockholm. For this site all three calibration methods, the two manual and the automatic, has been tested. The results show that all three methods performed equally well, with only small differences in precision. The most effective method considering results and time required for process was the manual calibration of environment factor.In the last part of this project the method for manual calibration of environment factor was tested with three more models with different characteristics in order to investigate the possibility of finding one value for environment factor suitable for all approaches. However the tests show difference in environment factor between small and large roundabouts and difficulties to set one value for environment factor for two-lane approaches.
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"Managing the Margins: Intersections of the State and the Khawaja Sira in Lahore, Pakistan." Doctoral diss., 2016. http://hdl.handle.net/2286/R.I.40737.
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abstract: Social equity research in public administration (PA) investigates different ways in which the practices of government intersect with the lives of socially marginalized individuals. However, due to limited direct engagement with marginalized groups; a predominant focus on formal state policies and institutions; and a lack of context-specific analyses of marginalization, there remain significant limitations in the existing PA research on social equity.
To address these theoretical gaps, this dissertation focuses on the Khawaja Sira of Pakistan – a marginalized group culturally defined as neither men nor women – to empirically investigate the multiple intersections between government and life on margins of the state. Specifically, this dissertation explores research questions related to legal and self-identity of the Khawaja Sira, impact of their changed legal status, their informal institutional experiences, and their interaction with front-line government workers through an interpretive research methodology.
The research design consisted of a ten-month long person-centered ethnography in Lahore, Pakistan during which in-depth person-centered interviews were conducted with 50 Khawaja Sira. I also conducted semi-structured interviews with 19 frontline workers from National Database and Registration Authority (NADRA), social welfare department, and a local NGO and a group interview with 12 frontline workers of police. I coded the data collected from the fieldwork using qualitative thematic content analysis in MAXQDA. I then analyzed the main themes from the data using multiple theoretical perspectives to develop my findings.
My analysis shows that the legal identity of the Khawaja Sira, as conceived by the Supreme Court of Pakistan, has limited relevance and benefits for the Khawaja Sira most of whom instead choose to register as men. The analysis of administrator-citizen interactions reveals that the Khawaja Sira are exposed to hyper-surveillance, moral policing and higher administrative burden during these interactions. These interactions are also strongly mediated by formal public policy, social discourses about gender identity and informal institutions. I discuss the implications of my analysis that can contribute to a more inclusive society for the Khawaja Sira. In doing so, my research makes important contributions to research on administrative burden, everyday citizenship, and social equity in public administration.Dissertation/Thesis
Doctoral Dissertation Public Administration 2016
Book chapters on the topic "SIDRA Intersection"
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Murat, Yetis Sazi, Turan Arslan, Ziya Cakici, and Cengiz Akçam. "Analytical Hierarchy Process (AHP) based Decision Support System for Urban Intersections in Transportation Planning." In Advances in Civil and Industrial Engineering, 203–22. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-8648-9.ch008.
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In transportation planning, design of intersections is required some concrete decisions. It is mostly related to capacity, safety and economy. In many applications, capacity is considered as the main factor for design purpose and type of intersection is determined regarding the capacity. But it is known that safety and economy are as important as the capacity. In order to handle this problem, a multi-criteria decision making approach (AHP) is used. Four intersection types are used. Fuel consumption, emission rates, delay, cost of intersection type and safety parameters are taken into account in the decision process. These intersection types are tested by SIDRA Intersection software using the parameters listed above. The data obtained by SIDRA software is used in the AHP model. Weights of the factors used in the AHP model are varied considering the views of capacity and economy. And results and applicability of the model are discussed.
Conference papers on the topic "SIDRA Intersection"
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Hafizyar, Rustam, Gul Rahman Abdulrahimzai, Haroonrasheed Safi, Ahmad Walid Yusufi, Khawaja Abdul Rahman Sediqi, and Suhrab Aryan. "Optimizing Intersection Performance Using Sidra Program on Baraki Intersection Kabul Afghanistan." In 2020 4th International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT). IEEE, 2020. http://dx.doi.org/10.1109/ismsit50672.2020.9255407.
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