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Bambang Haryadi
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Journal : Rekayasa Sipil

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PTV Vissim Calibration and Validation of Median Opening U-Turn Karimi, Muh Bahrul Ulum Al; Haryadi, Bambang; Setiadji, Bagus Hario; Mahfuda, Anno
Rekayasa Sipil Vol. 19 No. 2 (2025): Rekayasa Sipil Vol. 19 No. 2
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.02.15

Abstract

Traffic conditions at a median opening are more complex than signalized or unsignalized intersections. Driving behaviors and the driver's ability to maneuver a U-turn can affect median opening performance. Using software such as PTV Vissim, simulations can be carried out to help analyze traffic conditions and make necessary decisions. This study aims to simulate the median opening u-turn using PTV Vissim to resemble actual traffic conditions and validate it statistically. The calibration involves adjusting traffic volume, headway distribution, speed distribution, driving behaviors, conflict area, and critical gap. One of the important parameters in an unsignalized intersection, especially for U-turn movements at median openings, is the necessary gap. Most simulations still focus on driving behavior parameters, while the critical gap should be used as a calibration parameter to determine safe distances. Additionally, headway distribution predicts the arrival of vehicles that will pass through the median opening. This study adds calibration to the headway distribution parameter and critical gap parameter. The validation MAPE and GEH results for the calibrated simulation are good and acceptable. Meanwhile, the uncalibrated (default) simulation shows poor and unacceptable values. This evidence indicates that calibration is essential in the PTV Vissim simulation. Factors that affect the simulation result are inconsistent drivers, aggressive driver behavior, and inability to comply with priority rules. Driving patterns in mixed and heterogeneous traffic conditions create opportunities and spaces for making U-turns. Simulating this factor is challenging, so a more careful calibration is needed.
Co-Authors Afreni Hamidah Agung Budiwirawan Agung Budiwirawan Agung Sutarto Ahmad Sazali Ahmad Wahyudin Ahmad Wahyudin Alfa Narendra Alia Safira, Reishya Alim, Moh Nizarul Allyvia Camelia Andi Purnomo Anggraini, Merrie Satya Apriyani, Sasmita Aris Widodo Asni Johari Aviv Setiawan Bagus Hario Hario Setiadji Bagus Hario Setiadji Bambang Endroyo Bambang Riyanto Bambang Riyanto Batubara, Ummi Mardhiah Betty Purwati Darti Djuharni DIMAS WICAKSONO Dinata, Yoan Driana Leniwati Dwi Widjanarko Endah Kanti Pangestuti, Endah Kanti Fachrur Rozi Fadhila Rizqina Faisol Faisol Faisol Faisol Farahiyah, Qistina Fifi Gunawan Gita Arasy Harwida Habi Bullah Hadi Santoso, Haris Prasetyo Hadromi - Hanif Mauludin Hanif Yusuf Seputro Hanifah Hanifah Harahap, Ryan Hasnan Haryanto Haryanto Hasnaul Maritsa Hery Purwanto Hery, Andi Hidayat, Imam Nur Hutwan Syarifuddin Ihsan, Mahya Indriani, Nova Ismail, Mahmud Istianti, Monica Ayu Iswahyudi, Anggi Pradhita J, Kuswidyaningrum N. Karimi, Muh Bahrul Ulum Al Lanjarsari, Aulia Putri Lily Koesuma Widiastuty Listiyono Budi Lita, Eleonora Jade Marsha Lutfi, Agus Lyna Latifah Mahfuda, Anno Mardhotillah, Bunga Merie Satya Angraini Merry Satya Angraini Mohammad Wahyu Eka Mudhories, Moh Abqori Muhammad Jainuri Muhammad Luthfi Mustafid Mustafid Nugraheni, Dwi Refiana Maulida Nur Hayati Nur Qudus Nurul Herawati Nurul Kompyurini, Nurul Oktafiyanti, Assri Nuur Tri Oyong Lisa Panduwijaya, Joan Rafif Prasetyono Prasetyono Rahma Nindya Ayu Hapsari Revis Asra Rezza Irawan Widiarto Richard Llewelyn Risma Robiatul Auliyah Rohadatu Resty Auzia Sari, Agus Septiawan, Deni Sholahudin, Farhan Sholahudin Sigit Arya Panuntun Siswoyo, Mohammad Pujo Siti Musyarofah Soekarno Soekarno Sonhaji Sonhaji Stevany Kii Londong, Refenia Subagio, Triono Suzanti, Sriliah Syah, Sultan Tarjo Tarjo Tedjo Sukmono Tegar Aditya Tri Mulyani Tumirin Wicaksono, Satria Budi Winda Dwi Kartika, Winda Dwi Yuanita Dewi Zahra, Lailatuz Zahri Hamat Zihan, Gao Zuhdi, Rahmad Zurweni Zurweni