Mark Johnson Presenting at OTEC

OTEC logoMark Johnson, PE will be presenting at the Ohio Transportation Engineering Conference in Columbus, OH. His presentation “Too Many Crashes at Your Multi-Lane Roundabouts? Learn How to Optimize Safety for Multi-Lane Roundabouts” will be on Oct. 11 at 8am.

Session 49 – More About Roundabouts
Room: A110-112

Multi-lane roundabouts are having excessive PDO or minor crashes, which is creating many challenges for implementation. This presentation details the essential components for designing optimal roundabout safety and operations, and highlights how these elements blend together that affects how drivers process that information and then react to it.

See you there at this topical presentation!


Mark Johnson Presenting at TRB Webinar

Mark Johnson will be presenting at the TRB webinar “Modern Roundabouts: Downtown and Suburban Revitalization.

The webinar will be on Monday, September 18, 2017, from 2:00 PM to 4:00 PM ET and will provide examples of ways the modern roundabout may be able to revitalize a downtown area, enhance a community’s sense of place, and provide a safer and more efficient traffic flow in urban and suburban areas. Presenters will describe how roundabouts have jumpstarted downtown revitalization, illustrate how roundabouts have enhanced communities, and demonstrate how roundabouts have improved traffic flow.

Two PDH credits are available. For more information or to register see TRB’s webinar page.

Breckenridge, CO Roundabout Now Open

The first roundabout on the Park Ave. Corridor in the Town of Breckenridge, CO is now open! The roundabout at 4 O’Clock Road and Park Avenue held its opening ceremony on June 30, 2017. 

This is the first roundabout planned along a corridor of nine roundabouts on Park Avenue (SH 9). MTJ Roundabout Engineering worked with the Town of Breckenridge, CO and McDowell Engineering on the peer review for this project.



MTJ to Present at ITE/CITE 2017 Annual Meeting

Mark T. Johnson will present during the ITE/CITE 2017 Annual Meeting and Exhibit on July 30 -Aug. 2 in Toronto, Ontario. The poster session on July 31, 3:30-4:30 in Exhibit Hall will include our poster “Solving Complex Issues with Innovative Roundabout Applications.” Several complex roundabout applications will be discussed including the closely spaced roundabouts at STH 83 / USH 18 and Blackwood Dr. / USH 18 in Wales, Waukesha County, WI.

Olympic Blvd. Roundabout Opens in Lafayette, CA

Pleasant Hill and Olympic Blvd., Lafayette CA

The first roundabout in Lafayette, CA is now open at Pleasant Hill and Olympic Blvd.!
MTJ provided capacity analysis and final horizontal design, signing, marking, and ped/bike facilitation design for this roundabout. High levels of design alternatives and communication were involved with the City’s Ped/Bike Commission to address design questions and reach consensus on pedestrian and bicycle mobility and safety. Consensus was attained through design alternative development and thorough explanation and discussion about relative benefits of various design treatments. Project partner was Omni-Means.

Mark Johnson Presenting at TRB International Roundabout Conference

Mark Johnson, PE, will be presenting and moderating at the 2017 Transportation Research Board’s International Roundabout Conference in Green Bay, WI, on May 8-10.  Save the date and attend these sessions to learn about these trending topics.


May 8, 3:15-4:45 – Presentation of “Design Principles for Safety & Operations of Multi-lane Roundabouts” Session 4B; Design, Ballroom A2.

May 8, 9:00 (opens) Poster Session 1 –

  • Capacity Modeling and TOPR34 HCM 2016 Update
  • Solving Complex Traffic Issues with Unique Roundabout Applications


May 9, 9:45 (opens) Poster Session 2 –

  • Pedestrian/Vulnerable User Safety and Design Implementation
  • Traffic Planning Implications of the Operational Characteristics of Roundabouts


May 9 – 10:15-11:45 Mark Johnson will moderate “Human Factors,” Breakout Session 6C; Ballroom A3.

For more information, see the conference program.

MTJ to Present Roundabout Training Workshop


Join us for a roundabout training workshop and tour preceding the TRB Roundabout Conference in Green Bay.

Design workshops will be held Saturday, May 6, 1-6pm and lecture and tour will be held Sunday, May 7, 8am-6pm.

  • Learn how roundabouts can change the traffic planning paradigm
  • Reveal issues behind poorly performing roundabouts
  • See communities that solved complex transportation issues with roundabouts


See the flyer for more information, or email to register.