FHWA Documents
- NCHRP Report 674 – Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities
Transportation Research Board, 2017 (pdf) - NCHRP Synthesis 488: Roundabout Practices
Transportation Research Board, 2016 (pdf) - NCHRP Report 672 – Roundabouts: An Informational Guide – Second Edition
Transportation Research Board, 2010 (pdf) - NCHRP Report 572 – Roundabouts in the United States
Transportation Research Board, 2007 (pdf) - Roundabouts: An Informational Guide, FHWA, 2000 (pdf)
- Mini-Roundabouts Technical Summary, FHWA, 2010 (pdf)
- WisDOT Roundabouts Guide
- WisDOT – How Roundabouts Work
- Roundabout Landscaping, MTJ Roundabout Engineering (pdf)
Operational Analysis
- Unequal Traffic Distribution, Barry Crown (pdf)
- Rodel Capacity Background (rodel-interactive.com)
- Rodel: Interactive Roundabout Design Software
Public Outreach/Driver Education
- Roundabouts Save Lives, Money and Fuel, Sustainable City Network (article)
- Roundabouts and First Responders, FHWA (pdf)
- Public Outreach and Visualization, MTJ Roundabout Engineering (pdf)
Safety
- Pedestrians – Accessibility – Safety: Roundabout Design for Non-Motorized Users, Power Brief, 2020 (pdf)
- Guidance Memorandum on Consideration and Implementation of Proven Safety Countermeasures, FHWA, 2012
- Can Modern Roundabouts Safely Accommodate All Users?, Gene Russell, Srini Mandavilli, Kansas State University, 2011 (pdf)
- Crash Reductions Following Installation of Roundabouts in the United States, Insurance Institute for Highway Safety, 2000 (pdf)
- Maryland Roundabout Safety Study, Maryland State Highway Administration, 2001 (pdf)
- Double-Lane Roundabouts Speed Study, FHWA, 2005 (pdf)
Signage and Marking
- Pedestrian Hybrid Beacon Guide – Recommendations and Case Study, FHWA Full Report
- Pedestrian Hybrid Beacon Guide – Recommendations and Case Study, FHWA Presentation
- Roundabouts and Pedestrians, MTJ Roundabout Engineering (pdf)
- Effect of Signing and Lane Markings on the Safety of a Two-Lane Roundabout, John Hourdos, Minnesota Traffic Observatory, University of Minnesota, 2014 (pdf)
Traffic Planning / Access Management
- Businesses and Roundabouts, MTJ Roundabout Engineering (pdf)
- Example of Mini-Roundabout (video)
- Roundabouts and Access Management, Florida DOT, 2014 (pdf)
- A Study of the Impact of Roundabouts on Traffic Flows and Business, Kansas State University Transportation Center, 2012 (pdf)
2018
- Mark Johnson to Present at ITE Joint Western & TX District Meeting
- Peer Reviews in Pensacola Beach, Upcoming Events
- Best Paper Award at 2018 TRB
- MTJ to Present at 2018 TRB Annual Meeting
2017
- 2017 Has Been an Exciting Year
- Too Many Crashes in Your Multi-Lane Roundabouts?
- New MTJ Roundabout Open Near Pebble Beach, CA
- MTJ to Present on Multimodal Safety in Roundabouts
- New Roundabout Open in Fond du Lac
- MTJ Posters Presented at TRB 2017 Roundabout Conference Now Available
- MTJ to Present at International Roundabout Conference
2016
- MTJ to Present Roundabout Training Workshop
- MTJ to Present at OTEC
- Roundabouts and Access Management Webinar
- MTJ to Present at ITE Midwestern Conference – Includes link to poster
- Roundabouts are Good for Business
- Effective Public Outreach for Roundabout Implementation – Includes link to event video
- MTJ to Present at TRB Annual Meeting in Washington, DC – Includes links to the paper and poster