Microscopic Traffic Characterization of Light Rail Transit Systems at Level Crossings
The movement of the light rail vehicles (LRVs) is highly interrupted at level crossings during peak hour times, especially when the intersections are not regulated by a coordinated signal system. Traffic modelling ensures better understanding and interpretation of complex traffic interactions. This...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5574848 |
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| author | Robel Desta Daric Tesfaye János Tóth |
| author_facet | Robel Desta Daric Tesfaye János Tóth |
| author_sort | Robel Desta |
| collection | DOAJ |
| description | The movement of the light rail vehicles (LRVs) is highly interrupted at level crossings during peak hour times, especially when the intersections are not regulated by a coordinated signal system. Traffic modelling ensures better understanding and interpretation of complex traffic interactions. This study is aimed at modelling light rail transit (LRT) system operational characteristics at level crossings in Addis Ababa City using VISSIM software. The studied scenarios at Sebategna (All Way Stop Controlled, AWSC) and CMC (Roundabout) level crossings are the baseline without LRT scenario, the actual scenario with collected LRV headways, twice arrival frequency scenario, signalized actual LRV arrival, and signalized twice actual LRV arrival. The relative comparisons among the tested scenarios depicted that significant travel time savings can be achieved in some approaches if more green time is offered to nonconflicting phases during a light rail crossing. Overall, the average additional delays at level crossings increase from the base scenario with increasing light rail crossing frequencies, and delay at the level crossing is the second important variable that contributes to the variability of train travel time at peak hours. If it is a must for an intersection to have a rail road to pass through the median, different options should be verified based on the trade-off between the operational cost of the level crossing and the cost incurred if it is grade separated. |
| format | Article |
| id | doaj-art-0640deb142a241a5903753c36bbc457f |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-0640deb142a241a5903753c36bbc457f2025-02-03T01:05:07ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/55748485574848Microscopic Traffic Characterization of Light Rail Transit Systems at Level CrossingsRobel Desta0Daric Tesfaye1János Tóth2Department of Transport Technology and Economics, Faculty of Transportation Engineering and Vehicle Engineering, Budapest University of Technology and Economics, Muegyetem Rkp. 3, 1111, Budapest, HungaryDepartment of Civil Engineering, Institute of Technology, Hawassa University, P. O. Box: 05, Hawassa, EthiopiaDepartment of Transport Technology and Economics, Faculty of Transportation Engineering and Vehicle Engineering, Budapest University of Technology and Economics, Muegyetem Rkp. 3, 1111, Budapest, HungaryThe movement of the light rail vehicles (LRVs) is highly interrupted at level crossings during peak hour times, especially when the intersections are not regulated by a coordinated signal system. Traffic modelling ensures better understanding and interpretation of complex traffic interactions. This study is aimed at modelling light rail transit (LRT) system operational characteristics at level crossings in Addis Ababa City using VISSIM software. The studied scenarios at Sebategna (All Way Stop Controlled, AWSC) and CMC (Roundabout) level crossings are the baseline without LRT scenario, the actual scenario with collected LRV headways, twice arrival frequency scenario, signalized actual LRV arrival, and signalized twice actual LRV arrival. The relative comparisons among the tested scenarios depicted that significant travel time savings can be achieved in some approaches if more green time is offered to nonconflicting phases during a light rail crossing. Overall, the average additional delays at level crossings increase from the base scenario with increasing light rail crossing frequencies, and delay at the level crossing is the second important variable that contributes to the variability of train travel time at peak hours. If it is a must for an intersection to have a rail road to pass through the median, different options should be verified based on the trade-off between the operational cost of the level crossing and the cost incurred if it is grade separated.http://dx.doi.org/10.1155/2021/5574848 |
| spellingShingle | Robel Desta Daric Tesfaye János Tóth Microscopic Traffic Characterization of Light Rail Transit Systems at Level Crossings Advances in Civil Engineering |
| title | Microscopic Traffic Characterization of Light Rail Transit Systems at Level Crossings |
| title_full | Microscopic Traffic Characterization of Light Rail Transit Systems at Level Crossings |
| title_fullStr | Microscopic Traffic Characterization of Light Rail Transit Systems at Level Crossings |
| title_full_unstemmed | Microscopic Traffic Characterization of Light Rail Transit Systems at Level Crossings |
| title_short | Microscopic Traffic Characterization of Light Rail Transit Systems at Level Crossings |
| title_sort | microscopic traffic characterization of light rail transit systems at level crossings |
| url | http://dx.doi.org/10.1155/2021/5574848 |
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