Driver Behavior on Expressway Intersection Approach During Change Interval
Lawrence W. Lan
|關鍵字:||變換時段;快速道路;駕駛行為;Change Interval;Expressway;Driver Behavior|
The change interval is a subject of signal timing, which is most relevant to safety of intersection. The design length of change interval is traditionally according to definite physical formula. However, driver decision in real world can't be as precise or reasonable as the way predicted by definite physical formula. Therefore, the development of this subject began to focus on the random property and uncertainty of driver behavior. This study chooses some intersections of the expressway, where easy to have serious accident, investigating the decision behavior of individual driver during yellow time; then, according to this, constructs a binary-logit choice model, and analyzes results of individuals' decision by traffic stream behavior model. After analyzing, it can be found that, during the yellow time, vehicles on expressway are more likely to choose crossing the intersection than those on general highway are; heavy-vehicle, the vehicle with higher speed, and the vehicle closer to stop line are also more likely to choose crossing the intersection. It can also be found that, under full capacity, the yellow time requirement of vehicles with different approach speed is similar on the identical speed design or similar approach. The yellow time requirement will increase while above jam density. Therefore, under any condition of roads and traffic, the method, which can reflect real driver behavior and property of traffic stream, in this study, can be applied to analyze and research guideline of change interval timing.