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All Journal Borneo Engineering: Jurnal Teknik Sipil
Dumin, Ludofikus
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Civil Engineering, Building, Construction & Architecture

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Penanganan Kemacetan Lalu Lintas Yang Ditimbulkan Akibat Pergerakan Putar Balik (U-Turn) Pada Jalan Perkotaan Wadu, Amy; Dumin, Ludofikus; Nahak, Priska Gardeni
Borneo Engineering : Jurnal Teknik Sipil Volume 8 Nomor 2 Tahun 2024
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v8i2.5290

Abstract

The massive increase in the number of vehicles has placed a huge burden on urban transport infrastructure. This has created an urgent need for effective strategies to address traffic congestion. In Kupang City, U-turn facilities in the median of major roads such as Piet A. Tallo Street, have become a cause of congestion due to the delays that occur when vehicles make a U-turn. Approaching vehicles are often forced to slow down to allow the U-turning vehicles to merge. In an effort to respond to the growing demands of traffic flow, this study aims to investigate the impact of U-turn facilities on road medians and provide recommendations that can improve the efficiency and smoothness of traffic on urban roads. Using VISSIM software, the simulation of the planned improvement scenario of closing U1, U2 and U3 and diverting them to U4 and improving the geometry of U4 with outer widening was carried out. The results showed that the delay only reached 15.46 seconds/vehicle with level of service C from the previous existing conditions which reached 65.15 seconds/vehicle with level of service F
Estimation of Passenger Car Equivalent (PCE) Values in Heterogeneous Traffic Using the Time Headway Method on Timor Raya Road, Kupang City Wadu, Amy; Sodanango, Mateus; Dumin, Ludofikus; Laapen, Angelita
Borneo Engineering: Jurnal Teknik Sipil Volume 10 Nomor 1 Tahun 2026
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v10i1.605

Abstract

Traffic on urban roads in Indonesia is generally heterogeneous, comprising various vehicle types with distinct characteristics. To analyze heterogeneous traffic flow, all vehicles are converted into Light Vehicle Units (PCU), and this concept forms the basis for the definition of Light Vehicle Equivalent (LPE) in various guidelines. However, the standard PCE values from guidelines such as MKJI 1997 and PKJI 2023 can produce inaccurate traffic performance estimates because PCE values are not universal and are highly dependent on traffic conditions, road geometry, and driving culture in a particular region. This study aims to estimate PCE values using the time-headway method on Jalan Raya Timor in Kupang, Indonesia, which has experienced rapid growth in vehicle volumes, especially motorcycles. The time headway method is considered more dynamic and sensitive in reflecting drivers' perceptions of vehicle spacing, thus providing more accurate PCE values than traditional methods. The results of the study show that the PCE value for motorcycles (MC) ranges from 0.64 to 0.98, while for heavy vehicles (HV) it ranges from 1.05 to 2.16. The vehicle headway time method proved to be more accurate in assessing the volume-capacity ratio (V/C) because it is more sensitive to the time interval between vehicles, resulting in a V/C estimate that is closer to field data compared to the standard PCE method from PKJI.
Co-Authors Amy Wadu Laapen, Angelita Priska Gardeni Nahak, Priska Gardeni Sodanango, Mateus