Transit Signal Priority: Proposing a Novel Algorithm to Decrease Delay and Environmental Impacts in BRT Route Intersections

Document Type: Research Paper

Authors

1 Department of Transportation Engineering, Isfahan University if Technology, Iran

2 Department of Civil Engineering, Isfahan University of Technology, Iran

3 Department of Transportation Engineering, Isfahan University of Technology, Iran

4 School of Civil and Environmental Engineering, University of New South Wales, Sydney, Australia

10.22119/ijte.2019.147134.1430

Abstract

Intersections are considered as the most critical parts of the bus rapid transit (BRT) system. Transit signal priority is one of the efficient solutions to reduce BRT fleet delays at intersections. The aim of this study is to propose a new algorithm to decrease the BRT fleet delays at actuated intersections, while reducing the negative impacts on different approaches. The adaptive strategy is applied in this study. In the proposed algorithm, named TSPAT (Transit Signal Priority for Actuated Timing), intersection phasing is rescheduled, based on traffic conditions such as phase conditions at the time of bus arrival, the queue length of other approaches, and prioritization record in a specific time length. To assess the merits of the proposed algorithm, a before-after study is executed by applying VISSIM traffic simulation software for an actuated intersection in Isfahan city, Iran. The simulation results show that by applying the algorithm, the average delay of BRT fleets is declined by 21 % and 51% in peak and off-peak hours, respectively. Furthermore, the average speed of BRT fleets is increased by 26% and 78%, during peak and off-peak hours, respectively. The utilization of TSPAT algorithm can improve the desirability of the public transportation system along the BRT routes.

Keywords


-Abdy, Z. R. and Hellinga, B. R. (2010) "Analytical method for estimating the impact of transit signal priority on vehicle delay",  Journal of Transportation Engineering, Vol. 137, No. 8, pp. 589-600.

-Al-Deek, H., Sandt, A., Alomari, A. and Hussain, O. J. J. o. I. T. S. (2017)  "A technical note on evaluating the effectiveness of bus rapid transit with transit signal priority", Vol. 21, No. 3, pp. 227-238.

-Bagherian, M., Mesbah, M. and Ferreira, L. (2015)  "Using delay functions to evaluate transit priority at signals. Public Transport", Vol. 7, No. 1, pp. 61-75.

-Chen, X., Hellinga, B., Chang, C. and Fu, L. (2015) "Optimization of headways with stopā€skipping control: a case study of bus rapid transit system", Journal of Advanced Transportation, Vol. 49, No. 3, pp. 385-401.

-Chen, X., Yu, L., Zhu, L., Yu, L. and Guo, J. (2008) "Microscopic simulation approach to effectiveness analysis of transit signal priority for bus rapid transit: A case study in Beijing",  Transportation Research Record: Journal of the Transportation Research Board, No. 2072, pp.64-76.

-Christofa, E. and Skabardonis, A. (2011) "Traffic signal optimization with application of transit signal priority to an isolated intersection", Transportation Research Record: Journal of the Transportation Research Board, No. 2259, pp.192-201.

-Deng, T. and Nelson, J. D. (2013) "Bus Rapid Transit implementation in Beijing: An evaluation of performance and impacts",  Research in Transportation Economics, Vol. 39. No. 1, pp. 108-113.

-Ding, J., Yang, M., Wang, W., Xu, C. and Bao, Y. (2015) "Strategy for multiobjective transit signal priority with prediction of bus dwell time at stops",  Transportation Research Record: Journal of the Transportation Research Board, No. 2488, pp.10-19.

-Group, P. (2013) "PTV Vissim 7 User Manual. PTV AG, 240".

-Hensher, D. A. and Golob, T. F. (2008) "Bus rapid transit systems: a comparative assessment",  Transportation, Vol. 35, No. 4, pp. 501-518.

-Hounsell, N. and Shrestha, B. (2005) "AVL based bus priority at traffic signals: a review of architectures and case study",  European Journal of Transport and Infrastructure Research, No. 5 (EPFL-ARTICLE-158663), pp.13-29.

-Levinson, H., Zimmerman, S., Clinger, J., Rutherford, S., Smith, R. L., Cracknell, J. and Soberman, R. (2003) "Bus rapid transit",  Transit Cooperative Research Program Report, 90.

-Li, J., Wang, W., van Zuylen, H., Sze, N., Chen, X. and Wang, H. (2012) "Predictive strategy for transit signal priority at fixed-time signalized intersections: Case study in Nanjing, China",  Transportation Research Record: Journal of the Transportation Research Board , No. 2311, pp.124-131.

-Li, R., Zheng, C. and Li, W. (2016) "Optimization model of transit signal priority control for intersection and downstream bus stop",  Mathematical Problems in Engineering, Vol. 2016, Article ID: 9487190, 8 pages.

-Ma, W. and Yang, X. (2007) "A passive transit signal priority approach for bus rapid transit system",  Paper presented at the Intelligent Transportation Systems Conference, 2007. ITSC 2007. IEEE.

-Rakha, H. A., Ahn, K. and Collura, J. (2006) "Evaluation of green extension transit signal priority strategies using portable GPS receivers",  Paper presented at the Transportation Research Board 85th Annual Meeting.

-Ranjbar Falah, M. R. and Bahoush Keyvani, S. (2013) "Estimating economic costs due to pollutant gases emission (NOx, SO2, CO2) on Iranian gross domestic product",  Journal of Science and Environmental Engineering, Vol. 55, pp.57-69.

-Roess, R. P., Prassas, E. S. and McShane, W. R. (2011) "Traffic engineering", London: Prentice Hall, 816 pages.

-Wolput, B., Christofa, E. and Tampère, C. M. (2016) "Optimal cycle-length formulas for intersections with or without transit signal priority",  Transportation Research Record: Journal of the Transportation Research Board , No. 2558, pp.78-91.

-Xu, H., Sun, J. and Zheng, M. (2010) "Comparative analysis of unconditional and conditional priority for use at isolated signalized intersections",  Journal of Transportation Engineering, Vol 12, No. 136,  pp.1092-1103.

-Yang, M., Wang, W., Wang, B. and, Han, J. (2013) "Performance of the priority control strategies for bus rapid transit: comparative study from scenario microsimulation using VISSIM", Discrete Dynamics in Nature an dSoceity, Vol. 2013, Article ID: 398938, 9 pages.

-Ye, Z.and Xu, M. (2017) "Decision model for resolving conflicting transit signal priority requests",  IEEE Transactions on Intelligent Transportation Systems, Vol. 18, No. 1, pp. 59-68.

-Zhou, G., Gan, A. and Shen, L. D. (2007). Optimization of adaptive transit signal priority priority options for future bus rapid transit line in West Valley City, Utah. Transportation Research Record: Journal of the Transportation Research Board, No. 2311, pp. 176-185

-Zhou, L., Wang, Y. and  Liu, Y. (2017) "Active signal priority control method for bus rapid transit based on vehicle infrastructure integration",   International Journal of Transportation Science and Technology, Vol. 6, No. 2, pp. 99-109.

- Zhou, G., Gan, A. and Shen, L. D. (2007) "Optimization of adaptive transit signal priority using parallel genetic algorithm",  Tsinghua Science & Technology, Vol. 12, No. 2, pp. 131-140.

- Zlatkovic, M., Stevanovic, A., Martin, P. and Tasic, I. (2012)  "Evaluation of transit signal priority options for future bus rapid transoit line in Xest Valley City, Utah", Transportation Research Record, Journal of the Transportation Research Board, No.. 2012, pp. 176-185