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p-Index From 2021 - 2026
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All Journal Rekayasa Sipil
Kadarini, Siti Nurlayli
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Civil Engineering, Building, Construction & Architecture

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Impact of Sambas Besar Bridge on Tebas Intersection Performance, West Kalimantan Sarah, Siti; Azwansyah, Heri; Kadarini, Siti Nurlayli
Rekayasa Sipil Vol. 20 No. 1 (2026): Rekayasa Sipil Vol. 20 No. 1
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.2026.020.01.3

Abstract

The operation of the Sambas Besar Bridge (JSSB) significantly alters traffic patterns around Tebas District, particularly at the unsignalized Tebas three-way intersection, which serves both residential and commercial activities. This study applies the Indonesian Road Capacity Guidelines (PKJI, 2023) and microscopic simulation using VISSIM. Data collection included traffic volume surveys, geometric measurements, and vehicle counts using CCTV-based technology. Simulation parameters were validated against field conditions to ensure reliability. In 2025, the intersection was categorized as LOS B (delay = 9.4 seconds). Projections indicate declining performance, with LOS C expected to be reached by 2040 if no intervention is applied. Among the three evaluated improvement scenarios, the combined solution of road widening and median addition reduced the average delay to 10.86 seconds (LOS B). The research highlights how newly commissioned infrastructure influences secondary intersections. The proposed integrated solution demonstrates a sustainable strategy to maintain intersection service quality up to 2040, offering insights for other rapidly growing semi-urban regions.
Evaluation of Traffic Accident-Prone Points on Haji Rais Abdul Rachman–Hasanuddin Road Section, Pontianak City Nur Haida, Khansa Putri; Kadarini, Siti Nurlayli; Sumiyattinah
Rekayasa Sipil Vol. 20 No. 1 (2026): Rekayasa Sipil Vol. 20 No. 1
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.2026.020.01.4

Abstract

Rapid urban development in Pontianak City has led to an increase in traffic volume, resulting in congestion, road damage, and heightened accident risks. This study identifies accident-prone points along the Haji Rais A. Rachman–Hasanuddin Road section, analyzes accident patterns and contributing factors, and proposes targeted safety improvements. Using accident data from 2019 to 2023 and field surveys that assessed road conditions and traffic, accident severity was quantified using the Equivalent Accident Number (EAN), and accident clusters were identified using the Upper Control Limit (UCL) method. The findings reveal that driver-related factors, particularly motorcycle use, are the primary causes of accidents, with peak occurrences near shopping areas during the morning hours. Segments 3 and 4 emerged as critical black spots requiring intervention. Recommended measures include enhanced law enforcement, improved road markings, and addressing uneven road sections to reduce the incidence of accidents. This study fills a gap in applying rigorous statistical methods in medium-sized Indonesian cities, offering evidence-based recommendations for local policymakers to improve urban traffic safety
Co-Authors Heri Azwansyah Nur Haida, Khansa Putri Siti Sarah, Siti Sumiyattinah