Impact of Vehicle Speed on Traffic Accidents on Primary Arterial Roads (Case Study of Jalan Raya Anyer, Serang Regency)

This research aims to analyze the existing vehicle speeds on a primary arterial road and to implement speed management on road segments to improve road safety.This study utilizes secondary data collected from local Police accident reports over the four preceding years (2019)(2020)(2021)(2022).A road inventory survey was conducted to determine road characteristics.Traffic count surveys and spot speed surveys were used to obtain traffic characteristics.Existing speeds were analyzed using the 85th percentile speed, which reflects the operating speed of the majority of drivers.Subsequently, the 85th percentile speed was benchmarked against Indonesia's Minister of Transportation Regulation No. PM 111/2015.A Chi-square analysis was used to test the influence of vehicle speed on the fatality rate of traffic accident victims.The results of the Chi-square test indicated a significant relationship between vehicle speed and the fatality rate of traffic accident victims on the Jalan Raya Anyer.To improve road safety, speed control was implemented through the installation of signs and markings, particularly in accident-prone areas.The installation of speed limit signs is proposed in areas with educational, commercial, and residential activities.To enhance effectiveness, speed limit signs are installed repeatedly at a distance of 35 m between signs.The results of this research can contribute to the development of more effective policies and strategies to improve traffic safety on primary arterial roads, particularly in terms of speed management.