MTJ Roundabout Engineering
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New Roundabouts Opened This Fall

It is always exciting when a roundabout finally opens to the public after the dedicated effort of so many involved to bring these challenging projects to fruition. MTJ's extensive traffic planning and roundabout experience ensures successful, well-received projects, including these:

Main St. and Century Ave. (STH 119/113) Roundabout – Waunakee, WI – see video
MTJ provided to WisDOT the roundabout capacity analysis, traffic planning, final horizontal design, feasibility, and public outreach support for this signal-to-roundabout conversion project located in an urban constrained intersection. The final urban, pedestrian-friendly roundabout design anchors a downtown Complete Street revitalization project that incorporates a three-lane section with flared entries on all legs, accommodating ~ 27,000 ADT. The roundabout allowed for maintaining existing business access and circulation, improved traffic flow, as well as large truck and oversize/overweight specialty freight carriers.

Cty M and Brookfield Rd. Roundabout – Brookfield, WI
MTJ provided to Waukesha County Highway Engineering Dept. the roundabout traffic analysis, horizontal design, and design review for this very congested all-way-stop conversion to roundabout project. The highly constrained roundabout accommodates large truck movements and provides a safe roundabout for non-motorized users. Key to this effort was minimizing impacts to historical and other adjacent residential land uses, and balancing significant vertical roadway constraints.

Johnsburg and N. Chapel Hill Roads Roundabout – Johnsburg, IL
The Johnsburg roundabout was the first in McHenry County, IL. MTJ Roundabout Engineering provided to the County a unique non-circular roundabout design for this highly constrained urban intersection and roadway reconstruction project. This project was part of a multi-million dollar reconstruct, and included geometric design optimizations as well as pavement marking and signing reviews.

Main (STH 62) and Market Streets Roundabout – New Albany, OH
MTJ provided Peer Review and design optimization services to the City of New Albany to achieve a pedestrian optimized design that meets operational objectives, accommodates large truck movements, maximizes on-street parking, and meets Complete Street objectives. The MTJ-recommended design provided a more compact, slower/safer, pedestrian-friendly urban roundabout, with landscaping features to assist way-finding by guiding pedestrians to the correct crossing locations, precluding unsafe crossings.

Rocklin Road Corridor – Rocklin, CA
MTJ, with partner firm Omni-Means of California, transformed the Rocklin Road five-lane, heavily congested, commercial arterial into a series of seven roundabouts, with the first two now open. Utilizing the unique operational characteristics of roundabouts allowed for an impressive transformation of this corridor into a Complete Street. The roundabout design provided improvements to business access and circulation, minimal impacts, and significant improvements to the pedestrian environment and overall aesthetics of this main entrance to the City.


MTJ News

FHWA Peer-to-Peer Program
As requested by the FHWA Offices of Safety Peer-to-Peer program, MTJ assisted FHWA and Caltrans with capacity analysis and the development of recommendations aimed at optimizing safety for the Pacific Coast Hwy 1, Los Coyotes Blvd. (Long Beach Circle) Roundabout

MTJ Providing Training in Calgary, Alberta
Mark Johnson, P.E. will again be providing training for the Centre for Transportation Engineering & Planning (C-TEP) course, “Roundabout Planning and Design,” on Dec. 9-10, in Calgary, Alberta. For more information, check out:

Accepted Paper for 2015 TRB Annual Meeting in Washington, D.C. 
The TRB (Transportation Research Board) has accepted a new paper by Mark Johnson, P.E., “Synthesis of Roundabout Design and Operations with Flared Entries.” Mark will also be giving a presentation on the paper in January at the 2015 TRB Annual Meeting in Washington, D.C.



Mark Johnson

Contact Mark at 608-238-5000

MTJ Roundabout Engineering is a leader in roundabout design, analysis, and implementation.We specialize in the peer review of roundabout applications and use cutting-edge design principles to ensure a safe, affordable solution for your roundabout development needs.
  • Co-Author of the updated 2010 FHWA Roundabout Guide (NCHRP 672)
  • Technical Resource to over 100 roadway agencies and consulting firms across the U.S.
  • Active member of ITE and TRB Roundabout Committees
  • Roundabout training delivered to over 500 engineers across the U.S. 
  • Provided over 400 designs, reviews, and peer reviews in 26 states and 2 Canadian Provinces
Copyright © 2014 MTJ Roundabout Engineering, All rights reserved.

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