The Characteristics of Road Crashes on Indonesian National Roads Based on Integrated Road Safety Management System Data

The issue of traffic crashes in Indonesia continues to be a significant concern. In 2019, a total of 116,441 crashes were reported, resulting in 30,568 fatalities. Access to accurate data is crucial in lowering the fatality rate. The data were analyzed descriptively, categorized by crash type, and evaluated based on road configuration, geometric type, and surface conditions. The most frequent types of crashes on Indonesian national roads are rear-end crashes (25.64%), head-on crashes (21.95%), crashes at intersections (20.50%), pedestrian hit-and-runs (12.65%), and head-to-side crashes (8.01%). Head-on crashes showed correlation with undivided road, meanwhile rear-end crashes is more likely to occur on multi-lane roads. Predominantly, the crashes occurred on 2-lane 2-way undivided roads (54.28%), straight-aligned roads (81.36%), and roads with good surface conditions (94.92%). This crash data can serve as a foundation for formulating policies and initiatives aimed at enhancing road safety. © 2025 Budapest University of Technology and Economics. All rights reserved.