Traffic Conflict Analysis at Signalized Intersection Using Traffic Conflict Technique (TCT) Method at Muncul Intersection, South Tangerang City

Arjuna Satria Negara, Reni Karno Kinasih

Abstract

Abstract-- Traffic safety at intersections is a critical aspect of urban transportation systems, particularly at intersections with high traffic volumes and complex vehicle interactions. This study aims to evaluate traffic conflict potential at the Muncul Four-Leg Signalized Intersection using the Traffic Conflict Technique (TCT) method with a Time to Accident (TA) approach. The TCT method is applied to identify traffic conflict events that have the potential to cause accidents without waiting for actual crash occurrences. Data collection was conducted through field surveys during a 1-hour period in the afternoon, recording conflict types, vehicle speeds, inter-vehicle distances, driver evasive actions, and conflict severity levels. Traffic conflicts were classified into crossing, merging, and diverging conflicts, and further categorized into serious and non-serious conflicts based on Time to Accident values. Results indicate that crossing conflicts are the most dominant type at the study location. In terms of severity, serious conflicts account for 56% of total observed conflicts, while non-serious conflicts represent 44%. These findings suggest that during the observation period, the traffic safety risk at the Muncul Intersection is relatively high. The occurrence of traffic conflicts is influenced by traffic flow characteristics dominated by motorcycles, driver behavior, and limitations in traffic control and supporting facilities. To reduce traffic conflicts, several measures are recommended, including improvement of road facilities, evaluation and adjustment of traffic signal control, and enhancement of traffic enforcement and monitoring. The findings of this study are expected to support traffic safety management and improvement strategies at urban intersections.