REDESAIN PERENCANAAN ALINYEMEN GEOMETRI JALAN DALAM UPAYA OPTIMALISASI KESELAMATAN JALAN (Studi Kasus Jalan Jampang Tengah – Kiara Dua Km. Bdg 124 + 000 – Km. Bdg 125 + 000)

Highways are a transportation infrastructure for the Indonesian people that facilitate economic growth and are very effective and efficient in achieving balance between regions. In line with technological developments that have an impact on the increasingly rapid transportation, bringing both positive and negative consequences, one of which is traffic accidents. This is evidenced by the results of identification by the Sukabumi Regency Regional Police with an accident rate of 695 accident cases in the last 6 years and the highest level recorded 191 accident cases in 2022, with 89 fatalities, 26 people seriously injured, 203 people slightly injured. And reinforced by the results of interviews with local residents who stated that on the Jampang Tengah - Kiara Dua road section (Km. Bdg 124+000 - Km. Bdg 125+000) traffic accidents often occur. This is due to the inattention of drivers, the vehicles themselves, and the geometric conditions of the road, which do not meet the applicable planning standards as stipulated in the 1997 Highways (Bina Marga) legislation. This is particularly true for sharp bends on the Jampang Tengah – Kiara Dua road section (Km. Bdg 124+000 – Km. Bdg 125+000). This study aims to redesign the horizontal and vertical alignment and determine the cut and fill areas on the Jampang Tengah – Kiara Dua road section. Therefore, the need for preventive measures related to road maintenance or redesigning the geometric design of the road is crucial to avoid higher accident rates and maintain road safety and comfort. With the assistance of Civil 3D software, it is hoped that this redesign will not only significantly reduce the potential for traffic accidents but also improve road user comfort and safety, as well as the efficiency of road user time on a sustainable basis.
Keywords: Transportation, Road Geometries, Directorate General of Highways (1997), Redesign