Pedestrian Conflicts And Left Turning Traffic At Signalized Intersections

This study examines the interaction between pedestrians and left-turning vehicles at signalized intersections using the Traffic Conflict Technique. Within the scope of this study, a verification of the work undertaken by Quaye et al. (1993) is performed. Their work compared the safety of two types of left-turn protection at intersections using the multivariate statistical analysis. In preparation for the verification, several traffic conflict definitions and their applications to pedestrians are evaluated. Two computer programs were written for the data collection process, one for vehicles and one for pedestrians. Several statistical tests to relate traffic conflicts and the expected number of accidents are performed. These tests indicate that there exists a positive correlation; they also suggest that one type of signal protection is more dangerous to pedestrians.