Appropriate Traffic Safety Measures for Traffic Conditions with High Accident Risk

Abstract

In recent years, traffic accident risk estimation models have been developed, which evaluate the likelihood of the accident occurrence quantitatively. These models evaluate the probability of accident occurrence, or “accident risk", on time-space plane with 30 minutes in time and 1km in length. It is expected that traffic safety measures based on the accident risk can improve traffic safety effectively. This study aims to reveal the types of safety measures to be implemented depending on traffic conditions. Using a questionnaire survey, a comparison analysis was conducted to examine the differences in the ability of traffic administrators at traffic control center and general drivers to recognize the accident risks. Then, appropriate safety measures are investigated based on the opinion of traffic administrators. As a results, it was shown that the recognition ability of the traffic administrator is superior to general drivers, and effective safety measures were identified depending on traffic conditions.