The purpose of this research is to clarify the principal causes of broadside accidents at unsignalized intersections from various pre-crash driving patterns. Driving patterns showing a high incidence of accidents and high accident probabilities were identified by analyzing accident statistics, accident case data, and direct observational data collected at unsignalized intersections. In addition, it was found that primary parties travelling straight ahead tended to collide more often with secondary parties coming from the left side in Japan. This observation was studied from various perspectives, and the most probable causal factor was identified. These analyses have yielded information that is expected to be effective in considering measures for preventing these types of accidents. Peripheral vision is thought to influence broadside accidents at intersections where there is good visibility. The purpose of this research is to make clear the principal causes of broadside accidents that occur under various pre-crash driving patterns. Comprehensive analyses were made of police-reported accident data, accident case data compiled by the Institute for Traffic Accident Research and Data Analysis (ITARDA), and data collected by direct observation surveys at actual unsignalized intersections. A thorough examination was made of what types of pre-crash driving patterns occurred frequently, what types of driving patterns had high accident probabilities based on the use of statistical tools, and under what sort of scenarios accidents occurred. This paper presents the results of these analyses. For the covering abstract see ITRD E825082.
Samenvatting