Abstract
High-speed approach rural roundabouts have been found to reduce overall crashes by 71% and injury crashes by 87% and have become an effective tool used by public agencies to improve safety and capacity at rural intersections. In this presentation we will discuss critical design features for effective implementation, including alignment on approach, deflection, splitter islands, lighting, signing, curbing, diameter, design vehicle, and landscaping. Before-and-after results involving safety, operations, and public acceptance will be highlighted at specific US roundabouts.
Session Number
130
Session Title
Design, Operations, and Safety of High-Speed Approach Rural Roundabouts
Track Title
Safety
Location
STEW310
Date of Version
March 2016
Recommended Citation
Church, David A. and Tobaben, James, "Design, Operations, and Safety of High-Speed Approach Rural Roundabouts" (2016). Purdue Road School. 88.
https://docs.lib.purdue.edu/roadschool/2016/presentations/88
Start Date
3-9-2016 9:00 AM
End Date
3-9-2016 9:50 AM
Design, Operations, and Safety of High-Speed Approach Rural Roundabouts
STEW310
High-speed approach rural roundabouts have been found to reduce overall crashes by 71% and injury crashes by 87% and have become an effective tool used by public agencies to improve safety and capacity at rural intersections. In this presentation we will discuss critical design features for effective implementation, including alignment on approach, deflection, splitter islands, lighting, signing, curbing, diameter, design vehicle, and landscaping. Before-and-after results involving safety, operations, and public acceptance will be highlighted at specific US roundabouts.
