Identification of High-Risk Driving Behaviors Using the Hirarc Method: A Case Study on by Pass Ir. Soekarno Road, Tabanan

Abstract

Traffic accidents on Bypass Ir. Soekarno Tabanan, pose a significant risk due to its role as a major transportation corridor connecting Java and Bali. This study aims to assess hazardous driving behaviors and propose effective mitigation strategies using the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method. The research follows three stages: hazard identification, risk assessment, and risk control. A total of 14 hazardous driving behaviors were identified and classified into high-risk (4 behaviors), medium-risk (8 behaviors), and low-risk (2 behaviors). The most critical factors contributing to severe accidents include distracted driving (risk score: 25), drowsy driving (16), unsafe overtaking (16), and dangerous maneuvering (15), which exhibit high occurrence rates and significant accident severity. Medium-risk behaviors, such as tailgating (12) and brake checking (9), present moderate risks, whereas low-risk behaviors, including blocking other drivers (4) and swerving (1), have minimal consequences but require monitoring. The study suggests a comprehensive risk mitigation approach integrating technology, enforcement, and education. Recommended measures include driver monitoring systems, speed cameras, and real-time enforcement to deter risky driving behaviors. Additionally, public awareness campaigns and stricter law enforcement policies are essential for promoting safer driving practices. These findings provide valuable insights for policy development, urban traffic planning, and road safety improvements, contributing to evidence-based decision-making in accident-prone transportation networks.