北宜公路區間速率執法規劃程序之研究

A Study on Planning Procedure of Sectional Speed Enforcement for Pei-Yi Highway

臺灣以往多以偵測現點速率方式執法，對於整條公路的速率管理效果有限。新北市自107年於台2線萬里隧道開始推動區間速率執法(SSE)，實施後之交通事故件數及超速違規情形明顯降低。因此，各縣市陸續規劃於隧道、市區道路、郊區雙車道公路、城際快速公路等設施設置SSE系統。然而目前的SSE規劃僅考量交通事故之地點特性，而未納入車輛易超速之車流空間特性。因此，本文乃以北宜公路為研究對象，從事故空間特性與速率空間特性兩方面，共同探討如何規劃一較長的公路路段的SSE系統。本文透過三年的事故資料探討疑似涉及超速案件之路段，並利用2017HTSS模式模擬分析探討容易超速路段，以決定台9線之速率管制重點路段，最後再以情境分析法研擬執法設備配置規劃方案。

"In the past, the speeding enforcement methods adopted in Taiwan can measure the speeds by fixed equipment and mobile devices to get the spot speed, and the effect of speed control on the entire road was limited. However, the European countries had been using“sectional speed enforcement (SSE)”system to enhance the road safety recently. Since 2018, the New Taipei City Police Department started to adopt SSE system at the Wanli- Tunnel. After the implementation, the number of traffic accidents and speeding violations had been significantly reduced. Therefore, many counties and cities successively planned to install SSE systems in urban tunnels, urban roads, rural two-lane highways, intercity expressways and other facilities. However, there were not many basic researches on detection location and detection length of SSE system currently, and the domestic planning only considered the location characteristics of traffic accidents, and did not include the spatial characteristics of vehicles that were prone to speeding. In view of this, this study took the rural two-lane highway Beiyi Highway as the research object, and discussed how to plan the SSE system for a long highway section from the aspects of accident spatial characteristics and speed spatial characteristics. This study used three-year accident data to explore the highway sections that were suspected of involving speeding cases, and used the 2017HTSS model simulated to explore the highway sections that were easy to speeding. It then combined the both results to determine the hot sections of speed control on Beiyi Highway. Finally, it used the scenario analysis method to develop the enforcement equipment implementation alternatives."