摘要: |
Roundabouts have gained in importance and numbers because of their ability to enhance safety and efficiency of vehicular traffic. It was also found that roundabouts reduce pedestrian-related crashes. However, more recently there have been conflicting observations about pedestrian user experience pertaining to clarity, visibility, access, safety, and delays. Although roundabouts can provide numerous pedestrian benefits such as lower vehicle speeds and much lower pedestrian delays, transportation agencies have received some feedback from stakeholders indicating that roundabouts, especially larger multi-lane roundabouts, can be difficult to navigate. If safety data show reduction in pedestrian related crashes, why are agencies receiving complaints? The professional community and transportation agencies want to understand pedestrian behavior, pedestrian treatments for improving visibility of pedestrians and behavior of drivers, guidance with regard to pedestrian treatments, and best practices to follow when evaluating roundabouts for pedestrian user experience. The objective of this research is to understand pedestrian user experience at roundabouts, identify how it can be enhanced through various pedestrian treatments, and develop related guidance and decision tools. |