Performance Evaluation of Signalized Intersection- A Case study of Prithivi Chowk, Pokhara

Debit Poudel; Prem Nath Bastola; Sabina Paudel

doi:10.55524/ijirem.2024.11.3.14

Abstract

Prithivi Chowk, a heavily trafficked signalized intersection in Pokhara, Nepal, currently relies on manual traffic control, leading to significant issues during peak hours. This study employs the Highway Capacity Manual (HCM) methodology to evaluate the intersection's performance, aiming to address congestion and recommend improvements. Data collected from July 10-12, 2023, during peak hours, indicated traffic volumes of 6369.5 PCU/h in the morning and 6275.5 PCU/h in the evening, demonstrating over-saturation. The analysis included 12 vehicular and 4 pedestrian directions, with peak hour factors of 0.942 and 0.954, respectively.Initial assessments of three lane configurations and signal phasing plans revealed all phase plans exceeded capacity, resulting in a Level of Service (LOS) 'F'. Subsequent evaluations involved geometric enhancements, such as adding lanes. Increasing lanes in the Eastbound Through, Northbound Right Turn, and Westbound Right Turn directions significantly improved performance, achieving LOS 'D' in the third iteration of Phase Plan I. Optimal signal timings were designed using the Webster method, resulting in cycle lengths of 123 seconds for the morning peak and 116 seconds for the evening peak. The study highlights critical challenges and proposes targeted measures to enhance traffic flow at Prithivi Chowk, offering valuable contributions to transportation engineering and urban planning in Nepal. These findings emphasize the need for systematic traffic management improvements to mitigate congestion and enhance intersection performance.

Keywords

Signalized Intersection, Peak Hour, Saturation Flow, Capacity, Delay, Level Of Service

References

P. Ranjitkar, A. Shahin, and F. Shirwali, "Evaluating operational performance of intersections using SIDRA," The Open Transportation Journal, vol. 8, no. 1, 2014. Available from: http://doi.org/10.2174/1874447801408010050
A. Pokhrel, D. S. Basnyat, H. Tiwari, R. Poudel, S. Luitel, and S. Dhungel, "Performance Assessment of a Signalized Intersection: A Case Study of Jay Nepal Intersection," in International Conference on Engineering & Technology, vol. 5, p. 150, 2023. Available from: https://www.researchgate.net/profile/Sanjay-Luitel-2/publication/371247509_Performance_Assessment_of_a_Signalized_Intersection_A_Case_Study_of_Jay_Nepal_Intersection/links/647a0044b3dfd73b775db3c3/Performance-Assessment-of-a-Signalized-Intersection-A-Case-Study-of-Jay-Nepal-Intersection.pdf
H. Tiwari, S. Luitel, and A. Pokhrel, "Optimizing performance at signalized intersections through signal coordination in two intersections of Nepal," Journal of Transportation Systems, vol. 8, no. 1, 2023. Available from: https://doi.org/10.46610/JoJoTS.2023.v08i01.004
K. Dhakal, H. Tiwari, and S. Luitel, "Evaluation and Performance Enhancement of four Legged Intersection: Satdobato, Nepal," Journal of Advanced Research in Construction and Urban Architecture, vol. 8, no. 1, pp. 23-30, 2023. Available from: https://doi.org/10.24321/2456.9925.202303
N. Bajracharyaa and S. Dhungelb, "Urban Intersection Modelling for Signal Coordination and Adaptive Traffic Control under Heterogeneous Traffic Condition: A Case study of Keshar Mahal and Durbar Marg Intersections," 2022. Available from: https://soten.org.np/Uploads/Conference/6AWSEZ3TBR_Urban%20Intersection%20Modelling%20for%20Signal%20Coordination%20and%20Adaptive%20Traffic%20Control%20under%20Heterogeneous%20Traffic%20Condition.pdf
J. Mistry, P. Chaudhari, S. Arkatkar, and C. Antoniou, "Examining traffic operations at multi-legged intersection operating under heterogeneous traffic: a case study in India," Transportation Research Procedia, vol. 62, pp. 83-90, 2022. Available from: https://doi.org/10.1016/j.trpro.2022.02.011
A. Acharya, "Prediction of Traffic Conflicts at Signalized Intersection: A Case Study of New Baneshwor Intersection," Doctoral dissertation, Pulchowk Campus, 2020. Available from: https://elibrary.tucl.edu.np/handle/123456789/7968
USA: Transportation Research Board (TRB). Highway Capacity Manual 2000. National Research Council, 2000. Available from: https://trid.trb.org/View/475202
Nepal Road Standard 2070. Department of Road. Available from: https://kec.edu.np/wp-content/uploads/2017/06/Nepal-Road-Standard-2070-1.pdf

Cites this article as

D. Poudel, P. N. Bastola, S. Paudel, "Performance Evaluation of Signalized Intersection- A Case study of Prithivi Chowk, Pokhara", International Journal of Innovative Research in Engineering & Management (IJIREM), Vol-11, Issue-3, Page No-86-91, 2024. Available from: https://doi.org/10.55524/ijirem.2024.11.3.14

Corresponding Author

Debit Poudel

M.Sc. Student, Department of Civil Engineering, Pashchimanchal Campus, IoE, Tribhuvan University, Nepal

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