Institute of Transportation, MOTC

• Date：2023-09-20
• Update：2023-09-23
• Department：IOT

Project Overview
       The "examples of accident-type oriented intersection traffic engineering design" were initially completed by the Institute of Transportation in 2020. Examples of traffic engineering improvement design for different accident types have been compiled and directly applied for improving specific accident types at intersections using common accident types at intersections and application targets.To reduce the number of domestic road accidents, the plan has promoted the use of research resultdesign examples to train transportation engineering practitioners of transportation competent authorities in the application situations of various design examples, as well as a whole set of operational procedures related to transportation diagnostics. In turn, assistance is provided
to the road competent authorities at all levels in order to improve the technical standards of accident-prone road section improvement. In turn, the overall transportation engineering environment can be pushed toward greater safety and usability.
Research Results

1. This plan has promoted the use of past examples of accident-prone intersection improvement design in order to train transportation engineering practitioners from transportation competent authorities. Relevant personnel will be familiarized with the application situations of various design examples, as well as accident diagnostics related operational procedures, thereby improving the transportation engineering environment's safety standards.
2. Analysis and preliminary improvement plans were carried out in conjunction with the "Improvement Plan for the 40th Accidentprone Road Sections," including Keelung City, Hsinchu City, Chiayi City, Hsinchu County, Miaoli County, Nantou County, Changhua County, and Chiayi County. Furthermore, the improvement plans for assisting improvement demonstration sites were discussed during site investigation review meetings.
3. In general, the improvement items for the demonstration sites include appropriate lane configurations and guides, narrowing overly large intersections, improving flow routes, and providing appropriate pedestrian crossing spaces.

Result Promotion and Benefits

• The "40th Improvement Plan for Accidentprone Road Sections in Taiwan" has been incorporated into the plan for the formulated demonstration improvement sites in eight counties and cities. Transportation engineering improvements were made. Improvement construction was completed in stages in 2023 to significantly improve local traffic safety.
• From June 22 to July 1, 2022, six education training seminars were held in Keelung City, Hsinchu City, Chiayi City, Miaoli County, Nantou County, and Changhua County. Transportation engineering practitioners from transportation competent authorities received training to become acquainted with the application situations of various design examples, as well as accident diagnostics related operational procedures, thereby improving the safety standards of the transportation engineering environment.

Summary of Research Results (Figures and Tables)

Collision composition of Ren-yi Road and Ai-san Road, Renai District, Keelung City

Schematic diagram of research and improvement of Ren-yi Road and Ai-san Road, Renai District, Keelung City

Research Result Report

• Research Verification and Promotion of Locomotive Traffic Safety Engineering Design Methods with Mixed Flow Situations (Published in June 2018)
• Typical Examples for Traffic Engineering Design in Mixed-Traffic Situation  (Published in March 2018)
• Examples of Intersection Traffic Engineering Design Examples with Mixed Flow Situations (1/4) (Published in November 2018)
• Examples of Intersection Traffic Engineering Design Examples with Mixed Flow Situations (2/4) (Published in December 2019)
• Examples of Intersection Traffic Engineering Design Examples with Mixed Flow Situations (3/4) (Published in October 2020)
• Study on Traffic Engineering Safety Design Based on the Accident Types at Intersections (Published in July 2021)
• Promotion and Demonstration Project for Collision -oriented Guide to Intersection Design (1/3) - Application in Municipalities (Published in July 2022)
• The Promotion of “Traffic Safety Engineering Design Guidance for Intersection Based on Accident Types (2/3)”-Special Municipality (Published in July 2023)