Work Zone Safety and Mobility

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

• MDOTs 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_WorkZo
  neSafetyAndMobilityManual_233891_7.pdf
• MDOTs 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_at_michigan.gov,
  517-636-0463