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Investigating Bus Rapid Transit Signal Priority, Schedule-based Control and their Interaction on Service Performance and Fuel Consumption

Gulam Mohd Khan, Mohammad Hafiz Bin
http://rave.ohiolink.edu/etdc/view?acc_num=osu1534752492344119

Abstract Details

2018, Master of Science, Ohio State University, Civil Engineering.
Bus Rapid Transit (BRT) systems are an increasingly popular type of transit service that deliver many of the benefits of metro services with lower up-front investment. BRT systems typically make use of several technologies to keep buses on schedule or to maintain headways as intended: Schedule-based control (holding) and transit signal priority. Transit signal priority can either involve “early green” or “green extension” schemes. Under the former, the signal is switched to green sooner if a transit vehicle is waiting at the intersection, and under the latter, a green light that is about to turn red is extended until the transit vehicle can pass through the intersection. However, to date, there has been very little systematic research on the impact of these technologies on the operational performance of BRT systems. This thesis focuses on investigating the impact that the introduction of schedule-based control, transit signal priority, and the combination thereof have on a variety of performance measures that track operations and service quality on a BRT corridor. For this purpose, a simulation framework is developed using a microscopic traffic simulation tool, SUMO, to serve as a vehicle mover and integrating it with passenger demand, vehicle generation, service supply and powertrain components developed using MATLAB, TraCI, and Simulink. The simulation framework captures passengers arriving and waiting at bus stops, the movement of the transit vehicles along the corridor and their dwelling behavior at stops, and the behavior of the powertrain. In this thesis, the performance of the BRT corridor under 30 unique scenarios reflecting combinations of schedule-based control, green extension, and early green is investigated. The signal priority systems are implemented both as absolute signal priority, where buses always get priority, and conditional signal priority, where buses only get priority if they are behind schedule. The 30 defined scenarios are simulated using the developed simulation framework. Several performance measures are calculated, including fuel economy, passenger and vehicle travel times, the standard deviations of said travel times, schedule adherence, and bus dwell times. It is found that each combination of scheduled-based control and signal priority technologies involves tradeoffs among some of the performance measures, and that there is no one combination of technologies that is clearly superior to all others. Furthermore, it is found that the benefits of implementing schedule-based control can be obtained to some extent by using transit signal priority and an appropriately designed schedule, without actually implementing schedule-based control.
Rabi G. Mishalani (Advisor)
Andre Carrel (Advisor)
Mark R. McCord (Committee Member)
121 p.
Civil Engineering; Transportation

Recommended Citations

Citations

  • Gulam Mohd Khan, M. H. B. (2018). Investigating Bus Rapid Transit Signal Priority, Schedule-based Control and their Interaction on Service Performance and Fuel Consumption [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534752492344119

    APA Style (7th edition)

  • Gulam Mohd Khan, Mohammad Hafiz Bin. Investigating Bus Rapid Transit Signal Priority, Schedule-based Control and their Interaction on Service Performance and Fuel Consumption. 2018. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1534752492344119.

    MLA Style (8th edition)

  • Gulam Mohd Khan, Mohammad Hafiz Bin. "Investigating Bus Rapid Transit Signal Priority, Schedule-based Control and their Interaction on Service Performance and Fuel Consumption." Master's thesis, Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534752492344119

    Chicago Manual of Style (17th edition)

osu1534752492344119
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This open access ETD is published by The Ohio State University and OhioLINK.