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Journal : Journal La Multiapp

Design of Coordination Between Signalized Intersections (A Case Study in Gayamsari and Lamper Intersections) Ramadan, Ramadan; Setiadji, Bagus Hario; Riyanto, Bambang
Journal La Multiapp Vol. 6 No. 5 (2025): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v6i5.2230

Abstract

Gayamsari Intersection and Lamper Intersection in Semarang City are signalized intersections that experience high levels of vehicle queues and delays, especially during peak hours. This study aims to design signal coordination between intersections to improve traffic performance. The analysis was conducted based on the Indonesian Road Capacity Guidelines (PKJI) 2023, with a five-day field survey covering active days (Monday-Wednesday) and weekends (Saturday-Sunday). Peak hour traffic volume data was used to analyze existing conditions, including degree of saturation (DJ), queue length (PA), and delay (T) parameters. Several signal cycle planning scenarios were tested, and an optimal cycle of 180 seconds for weekdays and 130 seconds for weekends was obtained. Signal coordination can only be applied from Lamper to Gayamsari intersection, because in the reverse direction straight vehicles at Gayamsari intersection do not face red signals. Signal coordination is designed using the bandwidth and offset time method, with an offset of 45 seconds. The design results show a bandwidth of 60 seconds (morning) and 81 seconds (afternoon) on active days, and 43 seconds (morning) and 51 seconds (afternoon) on weekends. This design is expected to reduce vehicle delays and queues, and improve traffic efficiency at both intersections.
Co-Authors Abdussyukur, Abdussyukur Ade Evriansyah Lubis Adrian, Reznanda A. Afrizal, Agus Aidan, Fathan R. Alan Alfiansyah Putra Karo Karo alfarizi, Umar Andi Lelanovita Sardianti Andika Kusuma Wijaya Ansor, Ansor Azimah, Azimah Bagus Hario Setiadji Bambang Riyanto Bambang W. Nugroho, Bambang W. Barus, Dodi Sahputra Br Sembiring, Veby Yona Br Tarigan, Gita Nurgaya Br Tarigan, Irene Viazza Darwis Syarifuddin Daryono Daryono Dewi Maya Sari Edi Warman Eka Abdurrahman F. Silvi Dwi Mentari Faradilla Faradilla Fitry, Susanti Arian Giawa, Epenetus Gori, Enggellina Gulo, Tema Amati Gusti, Suroyudho S. Hafiz Yazid Lubis Hamdan Hamdan Haris Rosdianto Harun, Ihsan Haryatie Sarie Indra Indra Inem, Inem Irawan Setyabudi Kusmawati Hatta La Harudu LA MUDI, LA La Ode Alwi La Rianda Laode Muh Asdiq Hamsin Ramadan Liza erwina M Shiddiq AlGhifari Muhammad Almi Hidayat MUHAMMAD SYALEH, MUHAMMAD Mulia M Nailufar, Balqis Nasruddin Nasruddin Nasution, Khoirul Basri Nasution, Rosdiani Nofrizal, Dedi Noftantia, Vony Nugroho, Agung Nur Hidayat Nurjannah Nurjannah nurras, Raihan Pangesti, Wiwin Prakoso, Angger Pratama, Muhammad Doddy Purbawati, Purbawati Putri, Tata Miranda Rahmah Nurfitriani Rambe, Arsyad Parlindungan Riama Rita Manullang Roby Roby Rosmawaty Rosmawaty Rusmini Rusmini Saleh, Tegar A. Salsabila, Zulfa A. Sianipar, Masysarah Sibarani, Talenta Novila Siti Zumrotul Nikmah Suwarno Suwarno Tagan, Yapet Tarigan, Arif Peristan Tarigan, Viona Zuriana Tarigan, Vioni Zuriana Wa Ode Yusria, Wa Ode Yasmara, Selvia P. Yuanita Yuanita Zainal Abidin Zainal Zega, Tety Nauli Yanti