Balancing Green Time to Reduce Intersection Delay in Rohtak, Haryana
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Abstract
Uneven green time can leave one road crowded while another receives more time than it needs. This study compares four signal plans at a four-arm junction in Rohtak. The peak hour has 6,294 vehicles, equal to 5,123 passenger car units (PCU). Webster’s method gives a 71.31-second cycle. The selected cycle is 72 seconds, with 35 seconds of North–South green and 29 seconds of East–West green. Against the existing 100-second cycle, the average uniform delay, weighted by PCU demand, falls from 22.55 to 17.34 seconds, about 23.1%. Average equivalent queue length falls from 112.34 to 84.65 metres, about 24.6%. West’s demand-to-capacity ratio falls from 1.026 to 0.866. The 72-second plan performs best among the four choices.
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References
Biswas, S., Chakraborty, S., Ghosh, I., & Chandra, S. (2018). Saturation flow model for signalized intersection under mixed traffic condition. Transportation Research Record, 2672(15), 55–65. https://doi.org/10.1177/0361198118777407
Cui, S., Xue, Y., Gao, K., Wang, K., Yu, B., & Qu, X. (2024). Delay-throughput tradeoffs for signalized networks with finite queue capacity. Transportation Research Part B: Methodological, 180, 102876. https://doi.org/10.1016/j.trb.2023.102876
Federal Highway Administration. (2019). Traffic analysis toolbox volume III: Guidelines for applying traffic microsimulation modeling software (2019 update; FHWA-HOP-18-036). https://ops.fhwa.dot.gov/publications/fhwahop18036/index.htm
Gong, Y., Zhong, S., Zhao, S., Xiao, F., Wang, W., & Jiang, Y. (2025). Optimizing green splits in high-dimensional traffic signal control with trust region Bayesian optimization. Computer-Aided Civil and Infrastructure Engineering, 40(6), 741–763. https://doi.org/10.1111/mice.13293
Goyal, S., Saini, H. K., Kathuria, A., & Jain, U. (2026). Toward safer movement of riders: Evaluating dedicated two-wheeler lanes at intersections. Transportation Research Record, 2680(1), 50–72. https://doi.org/10.1177/03611981251355505
Ishizaka, T., Fujieda, K., Shaik, M. A. N., & Pawar, D. S. (2024). Traffic performance influenced by motorbikes and autorickshaws under heterogeneous traffic using UAVs. Journal of the Eastern Asia Society for Transportation Studies, 15, 2678–2692. https://doi.org/10.11175/easts.15.2678
Jatoth, J., & Mehar, A. (2023). Modeling passenger car unit and delay at signalized intersections in mixed traffic conditions. U.Porto Journal of Engineering, 9(3), 28–40. https://doi.org/10.24840/2183-6493_009-002_001508
Jithender, J., & Sushmitha, R. (2024). Passenger car unit estimation based on queued vehicles at approaches of signalized intersection in mixed traffic conditions. International Journal of Intelligent Transportation Systems Research, 22(2), 282–289. https://doi.org/10.1007/s13177-024-00394-4
Khatami, M., Behara, K. N. S., Home, C., Gyles, D., Dekker, F., Bhaskar, A., Bullock, D. M., & Paz, A. (2026). A systematic data-driven framework for evaluating changes on traffic signal settings. Transportation Research Record. Advance online publication. https://doi.org/10.1177/03611981261467327
Koonce, P., Rodegerdts, L., Lee, K., Quayle, S., Beaird, S., Braud, C., Bonneson, J., Tarnoff, P., & Urbanik, T. (2008). Traffic signal timing manual (FHWA-HOP-08-024). Federal Highway Administration. https://ops.fhwa.dot.gov/publications/fhwahop08024/fhwahop08024.pdf
Lee, S., Eom, M., & Kim, B.-I. (2024). Two-stage algorithm for traffic signal optimization and web-service system development. IET Intelligent Transport Systems, 18(9), 1697–1715. https://doi.org/10.1049/itr2.12542
Li, H., Yuan, Z., Chen, S., & Zhu, C. (2023). Exploring the effects of measures of performance and calibration strategies on calibrating traffic microsimulation model: A quantitative analysis approach. IET Intelligent Transport Systems, 17(6), 1200–1219. https://doi.org/10.1049/itr2.12375
Maddu, K., Potdar, P., Deb, M., & Jena, S. (2025). Empirical assessment of saturation flow rate with dynamic PCUs at signalized intersections under mixed traffic conditions. Innovative Infrastructure Solutions, 10, Article 379. https://doi.org/10.1007/s41062-025-02188-3
Mistry, J., Chaudhari, P., Arkatkar, S., & Antoniou, C. (2022). Examining traffic operations at multi-legged intersection operating under heterogeneous traffic: A case study in India. Transportation Research Procedia, 62, 83–90. https://doi.org/10.1016/j.trpro.2022.02.011
Mu, R., Nishihori, Y., Kato, H., & Ando, R. (2022). Traffic signal optimization models minimizing vehicles’ average delay in an isolated signalized intersection. Journal of the Eastern Asia Society for Transportation Studies, 14, 1906–1918. https://doi.org/10.11175/easts.14.1906
Osorio, C., & Bierlaire, M. (2013). A simulation-based optimization framework for urban transportation problems. Operations Research, 61(6), 1333–1345. https://doi.org/10.1287/opre.2013.1226
Park, B., & Schneeberger, J. D. (2003). Microscopic simulation model calibration and validation: Case study of VISSIM simulation model for a coordinated actuated signal system. Transportation Research Record, 1856(1), 185–192. https://doi.org/10.3141/1856-20
Patel, P. N., & Dhamaniya, A. (2021). Developing mixed traffic equivalency factors to estimate saturation flow at urban signalized intersections. Transportation Research Record, 2675(11), 601–611. https://doi.org/10.1177/03611981211018694
Randeep, & Kumar, S. (2026). Corridor-level signal coordination for congestion reduction using PTV Vissim: A case study of urban intersections in Rohtak city. International Journal of Research in Civil Engineering and Technology, 7(1), 202–207. https://doi.org/10.22271/27078264.2026.v7.i1c.135
Ranpura, P., Gujar, R., & Singh, S. (2025). Development of mixed traffic microsimulation model calibration for signalized intersections. Transportation Research Procedia, 82, 2898–2910. https://doi.org/10.1016/j.trpro.2024.12.226
Singh, M. K., & Rao, K. R. (2024). Simulation of signalized intersection with non-lane-based heterogeneous traffic conditions using cellular automata. Transportation Research Record, 2678(7), 909–930. https://doi.org/10.1177/03611981231211317
Tan, C., Cao, Y., Ban, X., & Tang, K. (2024). Connected vehicle data-driven fixed-time traffic signal control considering cyclic time-dependent vehicle arrivals based on cumulative flow diagram. IEEE Transactions on Intelligent Transportation Systems, 25(8), 8881–8897. https://doi.org/10.1109/TITS.2024.3360090
TomTom. (2026). India traffic report: TomTom Traffic Index 2025. https://www.tomtom.com/traffic-index/country/india/
Webster, F. V. (1958). Traffic signal settings (Road Research Technical Paper No. 39). Her Majesty’s Stationery Office. https://trid.trb.org/View/113579