Yielding behavior of passenger car drivers at unsignalized T-intersections

Abstract

This study investigated the factors affecting the decision to give way of private car drivers at T-intersections without traffic lights, which is a high-risk area for accidents, especially at intersections without traffic lights. The important factors in the study include factors affecting the right of way, such as the speed of the vehicle that has the right of way first, the increase or decrease of speed when entering the intersection, the behavior of stopping at the stop line, and the turning behavior of drivers in situations where they have to give way to vehicles coming from the main road. This study also used UAV technology to record driving behavior at intersections at Khon Kaen University to gain insights and analyze the factors affecting the decision to give way more effectively. The use of UAVs allowed the study to not only obtain quantitative data, but also data from various perspectives and analyze drivers’ giving way behavior using binary logistic regression equations. The results of this study helped to understand the behavior and factors affecting the decision to give way at T-intersections, and this information could be used to develop safety measures to prevent accidents at T-intersections more effectively.