PENGEMBANGAN MODEL TINGKAT KESELAMATAN LALU LINTAS JALAN TOL
The study aim was to develop models that can be used to assess the level of toll road traffic safety. Model development was done with a focus on microscopic traffic conditions in the form of hourly traffic flow, which was expected to represent the traffic conditions at the time of accidents. To achieve the research objectives, data in the form of tollroad geometric characteristics, crash , and traffic volume, was collected from Jagorawi, Jakarta-Cikampek, Padaleunyi, and Palikanci toll road operators. Level of safety assessment models were developed from these data with generalized linear modeling (GLM) approaches, and calibrated using statistical techniques. This study successfully model the effect of hourly traffic flow and a number of toll road road geometry elements to the total accidents frequency. It was found that the negative binomial distribution fits to the data describing the incidence of traffic accidents on inter urban Indonesian toll roads.