The Study on ROW''s Priority of Left-side and Right-side Vehicles for At-Grade Intersections of Non-Signalization

• Main Authors: ChiHua Cheng, 鄭祺樺
• Other Authors: Shoei-Uei Wu
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/59122043706660560669

碩士 === 國立交通大學 === 運輸科技與管理學系 === 91 === In the network of roads, traffic flow aggregates at the intersections; this occurrence greatly affects the order and safety of traffic flow. In the present, the concepts of time and space are used to determine the rights of way (ROW) by placing signals in the intersections in order to increase the order and safety of traffic flow and prevent accidents. Due to the lack of signals in many intersections in Taiwan, there are often problems with which vehicle should drive first in the intersections, and this problem is worth studying. Besides this, there are many different types of intersections without signals, so that there are often accidents when left-side vehicles and right-side vehicles are either both driving straight forward or both turning. So, this study is concerned with the umbilicus and fundamental problem of the priority of ROW for decreasing the frequency of accidents and increasing safety when driving across the intersections. This study takes many factors into consideration, such as the width of the intersection, the angle of the intersection, the type of the intersection, the location of the vehicles, the size of the vehicles, the speed of the vehicles, the reaction time of the drivers, the acceleration and deceleration of vehicles. The methods used in this research are the sight triangle theory, Newton’s Laws of Motion, the analysis of side-collision, the continuation of driving, the sight’s angle of the drivers, the circular-relation priority, the simulation of different situations, and the pair-comparison method. By these methods, one may determine the priority and order of the left-side and right-side vehicles of at-grade intersections, and further mentioned are seven principles of priority and order for the left-side and right-side vehicles of at-grade intersections, which are in accordance with the concept of ROW, where ROW refers to the pedestrians’ and vehicles’ right to use the road. The determination of ROW is important, because if drivers follow the priority of ROW, there will be fewer accidents in intersections with no signals, and the order of traffic flow will improve. So, current legislation like No.102 of the traffic’s safety rules may be improved through considerations taken from this study.