Download presentation
Presentation is loading. Please wait.
Published byGilbert Cooper Modified over 8 years ago
1
Mini Roundabouts Hillary Isebrands, PE FHWA Resource Center
2
2 Existing Mini Roundabout Design Guidance Typical ICD Range: 45 – 90 ft Small roundabouts used in low-speed urban environments often characterized by having mountable (or painted only) center islands and splitter islands. The central island should be domed using 5 to 6 percent cross slope, with a maximum height of 5 inches. Source: FHWA Guide, 2000
3
FHWA Field Testing, Marketing and Crash Test Analysis for Mini-roundabouts Research Project This research project aims to promote well‐designed mini‐roundabout deployments in the US, quantify potential safety benefits and produce marketing materials.
4
Existing Mini Roundabouts in US Davis, CA (2) Diamondale, MI Dover, DE Stevensville, MD Waco, TX (2) Photos courtesy of VHB
5
Mini Roundabouts Dover, DE Waco, TX Photos courtesy of VHB
6
6 Mini Roundabouts – Diamondale, MI Photos courtesy of VHB
7
Courtesy of VHB
8
Implementation of at least 10 new mini roundabouts in the US - Before and after capacity and safety data collected - Needs to be constructed within next 18 months
9
Contact Joe Bared at FHWA (joe.bared@dot.gov) for more informationjoe.bared@dot.gov Photos courtesy of Hillary Isebrands
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.