Effects of Sleep Deprivation on Probability of Traffic Violations in Motorcyclists; Analysis Using Bayesian Network

Abstract

This study focuses on the effects of sleep deprivation on the night before an accident on probability of traffic violation in motorcyclists. The accident rate for motorcyclists in Indonesia is quite high. This is based on statistical data that 70.93% of traffic accidents occurring from July to December 2015 in Indonesia involved motorcyclists. The study took place in Bekasci City, Indonesia. Samples consisted of 214 respondents who had had an accident. The probability of violation of motorcyclists was analyzied using a Bayesian network. Some variables affecting the probability of traffic violation are travel time, road side variability, road geometry, road conditions, driving time, fatigue, and travel distance for 1 year. The results of analysis show a probability of violation by 50% for motorcyclists sleeping 6 hours or less, 26% for those sleeping over 6 hours to 7 hours, and 24% for those sleeping over 7 hours.