| Title | The guide manual on Traffic Engineering Safety Design Based on the Accident Types at Intersections version 2.0 |
| Dept | Transportation Safety Division |
| Year | 2025 |
| Month | 3 |
| Price | 450 |
| Summary | Traffic safety improvement is a sophisticated operation that requires a systematic diagnostic analysis procedure. This manual is based on the diagnostic analysis procedure of accident diagnosis, integrating the design and configuration of various traffic safety engineering facilities. It provides design examples for available improvement measures for various collision types, serving as a reference for road management units and road designers. The manual introduces and analyzes common accident collision types, such as right-turn side collisions, left-turn side collisions, left-turn through side collisions, sideswipes, rear-end collisions, and crossing collisions. Additionally, it explores important topics to address road issues beyond accidents, including pedestrian-friendly design, alley speed reduction, segment speed management, intersection bicycle safety, and near-intersection parking issues. To use the manual, it is necessary to first collect accident data at intersections, supplemented by traffic and geometric characteristics. Consideration should be given to upstream and downstream relationships, roadside parking conditions, and the entry and exit of surrounding facilities. If accident scene diagrams are available, collision diagrams can be drawn based on them. Then, traffic safety improvement work is carried out according to accident diagnosis, referencing this example manual to generate improvement proposals. While generating traffic safety engineering improvement proposals, it is possible to identify the frequent locations of accidents through experience. By comparing these locations to the practices outlined in this example manual, improvement proposals can be formulated. In the process of developing improvement proposals for traffic safety engineering, corresponding to each collision type, potential road and traffic engineering issues can be identified based on the causes of collisions summarized in the design example reference manual. Subsequently, improvement strategies and design examples outlined in this reference manual can be used to develop improvement proposals. |
| Post date | 2025/05/31 |
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