Application of the IRAP Method Combined with GIS to Improve Road Safety on New Highway Projects in Algeria

This article aims to proactively predict high-risk accident areas in a new highway project terms of its technical and geometric characteristics. The purpose this study is provide road managers with better safety assessment tools for the vehicle occupant category. methodology used combines International Road Assessment Program (IRAP) Geographic Information System (GIS). IRAP program enables calculation classification risks each 100-meter segment besides their categorization using star rating; whereas, GIS map identify segments. method was applied 110 hectometres located GHAZAOUET Algeria. results revealed that combined innovative more than one way as it an effective decision-making aid tool experts. It, therefore, makes possible target accident-prone sections faster before carrying out on site inspections. Technically speaking, shows existence closely curved radii mixed at traffic speeds exceeding 80 km/h presence exits are main factors affecting occupants. Speed control; thus, remains among cheapest measures improve safety.