Spatial Mapping of Road Accident-Prone Areas in Jember City using the Z-Score Method and Equivalent Accident Number

Abstract

Traffic accidents are one of the major problems in the transportation sector, posing significant risks to road users’ safety. Jember City, as one of the activity centers in East Java, has a high level of mobility that potentially contributes to an increased number of traffic accidents. This study aims to identify and map accident-prone areas (black spots) in Jember City using the Z-Score method and the Equivalent Accident Number (EAN). The data used include the number of accidents, fatalities, serious injuries, and minor injuries obtained from relevant agencies. The analysis was carried out by calculating the EAN to determine accident severity levels and applying the Z-Score method to classify locations based on their accident-prone levels. The results indicate that several locations fall into high, medium, and low-risk categories, mostly concentrated along Jember’s main road corridors. This mapping is expected to serve as a basis for local governments and stakeholders in formulating road safety policies, traffic engineering planning, and accident prevention programs in the future.