Tinjauan Geometrik Jalan Raya Pada Titik-Titik Rawan Kecelakaan (Blackspots) Di Kota Semarang

Abstract

This study is based on traffic accidents in Indonesia which increased from year to year, the increase of the accident rate resulted in the loss of material or casualties. Frequent accidents are classified as blackspots (accident-prone points). Then to minimize the blackspot, there is a need to study the safety of traffic more deeply, one of the efforts is to conduct a road geometric review. In the geometric overview of the highway there are horizontal alignments and vertical alignments as the main points of discussion, where horizontal alignments discuss the speed, bend length, stop visibility, side free areas, bend extension and super elevation. While the vertical alinemen discuss about the cleverness, and vertical arch. Analysis of horizontal alignment and vertical alignment based on RSNI 2004 criteria. The results of this study indicate that there are some discussion of horizontal alignment and vertical alignment that is not in accordance with the criteria of RSNI 2004, the discussion includes the length of the curve, the stop visibility, and the side free area for alinemen horizontal, and vertical curvatures and vertical alignments.