Determination minimum distance between ramp entry and exit on the freeway reviewed from the road safety aspect

This study was designed to discuss the minimum distance of access and exit in terms of road safety aspects. The safety aspect reviewed is looking for the relationship between the geometric aspects of the toll road to the level of accidents that occur. Accidents that occur are divided into three categories, namely; accidents that caused the death of the world, caused injuries and total accidents. The prediction model that will be made is a comparison of the three types of accidents with the geometric aspects of the toll road. Geometric data on toll roads, traffic volumes and accidents are taken from toll roads between the cities of Jagorawi, Jakarta-Tangerang, Padaleunyi, and Palikanci. The accident level model was developed using generalized linear modeling (GLM), and calibrated using statistical techniques. Some conclusions that can be drawn are: (1) The distance between the ramp entered and ramp out has a significant coefficient value for all prediction models; (2) The minimum road distance generated for the case of a 2 lanes in the death accident model is 9000 m, for accidental injuries is 6000 m and the total accident is 5000 m; (3) The minimum road distance generated for the case of a 3 lanes in the death accident model is 9000 m, for accidental injuries is 5500 m and the total accident is 5000 m; (4) The minimum road distance generated for the case of a 4 lanes in the death accident model is 6000 m, for accidental injuries is 5000 m and the total accident is 4000 m.