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Work Zone Safety and Mobility

Understand Michigan's DOT TMP process for enhancing work zone safety and mobility with detailed plans, coordination strategies, and project implementation methods. Effective resource to improve transportation management.

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Work Zone Safety and Mobility

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  1. Work ZoneSafety and Mobility Transportation Management Plans Jason Gutting, P.E. Michigan Department of Transportation

  2. TMP Process • Work Zone Safety and Mobility Policy • Developed by cross sectional team • Planners, Traffic and Safety, Development, Communications, etc. • Effective September 1, 2007 • Guidance Document • Applies to all MDOT work zones (construction, maintenance, permits/utilities) • Work Zone Safety and Mobility Manual • Roles, responsibilities, strategies, etc. • TMP process created while preparing the manual

  3. TMP Contents • Transportation Management Plans (TMP) • Required on all projects • Temporary Traffic Control Plan (TTCP) • Transportation Operations Plan (TOP) • Public Information Plan (PIP) • Significant Project • TTCP, TOP and PIP Required • Non-Significant Project • TTCP Required • TOP and PIP Recommended

  4. TMP Development • TMP development begins in the project planning and scoping phase • Involves planning and design staff • Incorporates big picture issues • Further details as project progresses • Allows more accurate programming and budgets • Maintaining traffic schemes (Temporary structure for maintaining traffic, crossovers, etc.) • Temporary ITS applications • Coordination with corridor and network projects

  5. TMP Development • Project Design Phase • Details flushed out • Primary TMP development occurs during this stage in parallel with plan completion • Project delivery staff are engaged for better coordination and constructability reviews • Pay items are incorporated into the project plans and specifications • Special provisions are documented for project specific and/or unique issues

  6. TMP Development • Statewide Peer Review Team (SPRT) • Mobility analysis and thresholds • Travel Time • Level of Service • Volume to Capacity Ratio • Project Rating system • Review Form • Red, Yellow, Green • Executive level engagement • Benefits • Check and balance for mobility issues • Feedback from other areas • Statewide Work Zone Administrator provides consistency • Staff have been very receptive of this review

  7. TMP Implementation • Responsibility of project delivery staff • Strategy implementation • Changes, variations, etc. provided to development staff

  8. TMP Implementation • Performance • Performance monitoring • Worksite trailers • Travel time • Queues • Cameras / Detectors • Crashes • How much did accidents decrease because of mitigation measures and comparable projects • Did accident severity decrease • Measurements versus expectations • How did actual measured delay compare with expected delay (travel time, queues) • Project documentation

  9. TMP Lessons Learned • A TMP template was created to assist project development staff with TMP submittals • Uniformity • Critical Focus Area • TMP reviews are now conducted as needed versus at pre-determined dates • Less Time Crunch • Better Quality • Better Use of Staff Resources • Faster Response for Project Offices

  10. TMP Lessons Learned • Public involvement in the TMP development is critical • Crash Analysis • Accurate Traffic Data

  11. Work Zone Safety and Mobility Manual • MDOT’s Work Zone Safety and Mobility Manual can be found at the following link. TMP information can be found in Chapter 4 • http://www.michigan.gov/documents/mdot/MDOT_WorkZoneSafetyAndMobilityManual_233891_7.pdf • MDOT’s Work Zone Safety and Mobility Policy is not available on-line but the document can be electronically provided if requested • Contact Jason Gutting, P.E., Systems Operations and Management Engineer, guttingj@michigan.gov, 517-636-0463

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