新式立體彩色減速標線試辦規劃與評估

The Evaluation of Innovative 3D Colored Speed Reduction Markings

本研究設計遴選新式立體彩色減速標線（紅－藍－白）組合進行實地測試，針對新式減速標線設置後用路人的實際感受，並觀測比較設置前後行車速率分佈情形，結果發現，依用路者經驗，認為立體彩色減速標線明顯或非常明顯的比率在白天時段，高達91.5%，但在夜間則僅有47.5%。受訪者在經過該路段時會減速的情形有77%的小型車駕駛人會減速；機車騎士則有71%的會減速。行車速率的調查則發現小型車，在新式減速標線區域內，不論在白天或夜間，依地點不同約可降低1.8-5.4公里／小時的平均速率，以及3.0-7.0公里／小時的第85百分位速率，機車和大型車則因試辦地點而有不同結果，但各車種超速比率大多呈現下降的趨勢。

This study designed and selected an innovative three-dimensional (3D) speed reduction colored marking (red-blue-white) for field tests. Road users were surveyed after the implemenation of the innovative markings. A before and after study was conducted to compare the speed distributions before and after the innovative markings were installed. According to the road users' survey results, 91.5% of road users found the 3D speed reduction colored markings obvious or very obvious during the daytime, but only 47.5% road users thought the markings were obvious at night. 77% of passenger car drivers and 71% of motorcyclists said that they slowed down when passing the marking area; the speeds comparisons found that regardless of time of day, passenger cars in the marking area decreased their mean speed by 1.8-5.4 km/h after the installation of markings. The 85th percentile speed also reduced 3.0-7.0 km/h. The impact of the marking on other vehicle types vary depending on the test locations. The ratio of speeding also decreased in most cases after the installation of 3D colored markings.