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Summary of IOT Publications
| Title | Typical Examples for Traffic Engineering Design in Mixed-Traffic Situation |
|---|---|
| Dept | Transportation Safety Division |
| Year | 2018 |
| Month | 7 |
| Price | 250 |
| Summary | In Taiwan, motorcycles are the major means of transportation used for short distance trips. The number of registered motorcycles currently amounts to 15 million. Among the fatalities in traffic accidetns, the percentage of motorcycle users (including motorcyclists and passengers) exceeds 80%. Motorcycle accidents incur a great social cost. In an effort to improve motorcycle rider safety and traffic flow efficiency, numerous roadway design features and management strategies have been devised for motorcycles (with engine capacity of 250 cc or less). For example, motorcycles may be prohibited from the inner lane closest to the oncoming traffic, and motorcycles may be required to make a two-stage left turn at intersections where there are three or more lanes. However, current safety design features can only partially deal with conflicts between motorcycles and other vehicles, and several traffic conflict problems in straight lanes are still unsolved; for example, motorcycle riders going straight have conflicts with taxi drivers and bus drivers going to the roadside to pick up passengers. Moreover, the width of lanes on a roadway is often designed from the perspective of car drivers. Risky behavior by motorcyclists, such as weaving in traffic and speeding, increases the accident risk for motorcycle riders. These issues highlight the need for improved roadway design for motorcycle safety in situations of mixed traffic flow. This study continues with project completed in 2014, which aimed to evaluate the experimental planning in accident prone intersections, and to establish motorcycle traffic safety design principles. This study will first conduct a thorough review of relevant literatures, then develop methods on improving the principle. This method can then be used to improve the real intersections in Taichung city and Kaohsiung city, based on the current road conditions and accident patterns in accident prone intersections Finally, we aims to establish the motorcycle traffic safety design principle, cooperating with related departments to put the principles into practical use. We will then analyze the results and modify the planning accordingly, and evaluate the results by comparative methods. Analysis of traffic recordings have shown that improvement measures can lead to reduced traffic conflicts, which may result in reduced intersection accidents. |
| Post date | 2018-07-02 |
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