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PROJECT PORTFOLIO
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Since 1998, DLZ has prepared roundabout designs, prepared plans, and completed feasibility studies for more than 250 roundabout intersections. DLZ's roundabout experience includes design and construction of single-lane, two-lane, and three-lane roundabouts with our specialty being high capacity roundabouts. Our staff experts also have extensive experience in conceptual design, preliminary and final design, local agency coordination, feasibility studies, public education campaigns, construction assistance, and expert review. The table on this page summarizes previous projects that have been successfully completed by DLZ. Project profiles provide additional details about representative projects.
When you select the DLZ team, you also get the benefit of our experience in many other important areas:
- DLZ wrote the MDOT Roundabout Guide, authored major portions of the INDOT Roundabout Guide, and contributed to the WisDOT Roundabout Guide.
- DLZ staff member Wes Butch recently presented a research paper on roundabout capacity analysis and design at the TRB’s National Roundabout Conference in Kansas City.
- DLZ has taught an annual class called "Introduction to Roundabouts" through Michigan State University‘s Traffic Safety Program.
- Our staff members have worked extensively with and have been trained by Mr. Barry Crown of Rodel Software Ltd., one of the world‘s foremost experts on roundabouts.
- DLZ and MDOT together received the National Partnership for Highway Quality (NPHQ) Gold Level Achievement Award for the I-75/M-81 Roundabout Interchange Project.
- DLZ has been hired as an expert reviewer for roundabouts by MDOT, the Wisconsin Department of Transportation, and many other government agencies.
- We have been invited to make informational presentations regarding roundabouts to many MDOT Region Offices, Traffic & Safety staff, and their executive leadership team.
- We have provided information and guidance regarding pavement markings, signing, and the use of concrete at roundabouts to FHWA‘s Michigan Division.
- We have given presentations to professional groups across the Midwest, including our well-known “Roundabout Myths” presentation.
- Because of our roundabout expertise, we were asked to serve on the Intersection Safety Committee of the Governor‘s Traffic Safety Advisory Commission for the State of Michigan.
- DLZ has hosted an annual Roundabout Information Seminar in many locations. This seminar has been held in Ann Arbor, Michigan; Lansing, Michigan; Berrien Springs, Michigan; Traverse City, Michigan; Columbus, Ohio; Cleveland, Ohio; Indianapolis, Indiana; Frankfort, Kentucky; Louisville, Kentucky; and Covington, Kentucky. This event has been very successful in educating members of the planning and design community about the pros and cons of roundabouts.
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