An Analysis of the Dangerous Situations of Right Turn Vehicles and Crossing Bicycles and Pedestrians at the Black Spot Intersection

Abstract

The various countermeasures for serious traffic accidents are implemented at black spot intersections. However, the traffic accident data and near-miss data, which is used for considering traffic accident countermeasures, cannot grasp all occurrences of dangerous situations. For example, the signal phase at traffic accidents and/or near-miss events is recorded subjective data only. It is also difficult to analyze quantitatively using the number of accidents at a specific intersection only because the traffic accidents are an accidental event. Therefore, in this study, the occurrence of dangerous situations at the black spot intersection of right turn vehicles and crossing bicycles and pedestrians was analyzed using PET (Post Encroachment Time) indicator, a traffic conflict indicator for identifying dangerous events quantitatively. As a result, it was found that there was a hazardous risk for the right-turning vehicle in the vehicle group and pedestrians/bicyclists crossing alone after the green signal starts lately.