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511: Case Study Overview – Greater Detroit Region

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This overview report is also available as an Adobe PDF file at, requiring Adobe Acrobat Reader

At least thirteen traffic, transit, and transportation-information telephone systems are currently in operation in the southeastern Michigan / Windsor, Ontario region. The focus of this case study was specifically on the three county area – Wayne, Oakland, and Macomb – which is a subset of the region´s seven county Southeast Michigan Council of Governments (SEMCOG).

Michigan DOT‘s MITS Center is the clearinghouse for real-time freeway information for greater Detroit and the real-time ITS and incident information collected at the MITS Center is the most pertinent for a near term 511 phone system when initiated in Southeastern Michigan. MDOT´s only existing statewide phone system provides construction information for the state highway system by dialing toll free 800-641-MDOT.

511 Vision

The Michigan Department of Transportation has identified that the successful implementation of 511 statewide requires a consolidation of all currently operating traveler information telephone numbers under a single point of contact. It is envisioned that Michigan´s future statewide 511 system would be anchored by two regional 511 service areas ­ Detroit/SEMCOG and Grand Rapids - overlaid by a statewide default system (possibly an enhanced version of the existing statewide construction hotline) in all other areas of Michigan. The granularity of the rural area information should not be expected to be the same as within the Detroit and Grand Rapids areas. The greater Detroit area 511 should include southern Ontario in its watershed.

Ongoing Activities

MDOT has decided to do a one-year 511 pilot program before accepting competitive bids. It is anticipated that the pilot program would begin in the greater Detroit area and possibly cover the entire seven-county SEMCOG region.

Lessons Learned

For the full case study report, go to:

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