TDOTs WORK ZONE SAFETY AND MOBILITY MANUAL

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TDOTs WORK ZONE SAFETY AND MOBILITY MANUAL

• Use Implementation of Transportation Management
  Plan

• AASHTO Subcommittee on Design
• Dyan C. Damron, P.E. Neel-Schaffer, Inc.
• July 15, 2008

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Todays Session

• Present Manual
• Present TMP Workbook
• Discussion

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Work Zone Manual

• Part 1 Purpose Commitment
• Part 2 Procedures Initiatives
• Part 3 Significant Assessment
• Part 4 TMP Development
• TMP Workbook

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Work Zone Manual

• Describes background and details for completing
  the TMP Workbook
• To be used as a reference to the Workbook
• Descriptive how-to for completion of Workbook

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Part 1 Purpose Commitment

• Department has taken the initiative to apply this
  process to all projects under TDOT control
• Three Primary Goals
• Maximize safety
• Minimize delay
• Promote consistency

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Part 2 Procedures Initiatives

• Roles Responsibilities
• Types of Projects
• PPRM, Design, Structures, Maintenance
• Processes
• Not to change current, just tying it all together

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Part 2 Procedures Initiatives

• Standing TMPs
• Routine, recurring activities/projects within the
  Design or Maintenance Divisions
• Ex resurfacing, pot hole repair, on-call
  contract activities
• Exempt Activities
• Ex litter removal, mowing, etc.

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Part 2 Procedures Initiatives

• Training
• All personnel involved in the development,
  design, implementation, operation, inspection and
  enforcement of work zone related transportation
  management and traffic control
• Performance Assessment
• Process Review
• Standing Committee on Work Zones

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Part 3 Significance Assessment

• Considerations for Assessment
• Project Location
• ADT
• Urban/Rural Setting
• Route Type

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Part 3 Significance Assessment

• A Significant Project is one for which any of the
  following criteria exist
• On the interstate system located within a
  recognized TMA that occupies a given location for
  at least three days duration with either
  continuous or intermittent lane closures.
• On an interstate route or any route with an AADT
  of at least 50,000 vehicles per day for which all
  lanes in one direction will be closed to traffic.
• The delay through the limits of the work zone is
  at least 30 minutes above the normal delay under
  typical non-work conditions.
• Deemed Significant by extraordinary qualitative
  characteristics. This determination may be made
  on the basis of conditions such as high levels of
  public interest, business/community impacts, or
  long work zone duration.

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Part 3 Significance Assessment

• Can also consider qualitative criteria
• Business impacts
• Detour effects
• Effect on public
• Careful consideration

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Part 4 TMP Development

• Description of Potential Strategies
• TTC, TO, PI - comprehensive list of strategies
• Based on current Department practice
• Encourages consideration of innovative practices

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Part 4 TMP Development

• Temporary Traffic Control
• Work Zone Construction Strategies
• Traffic Control and Safety Device Strategies
• Coordination and Contracting Strategies
• Advanced Material and Methodology Strategies

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Part 4 TMP Development

• Transportation Operations
• Travel Demand Management Strategies
• Corridor/Network Management Strategies
• Work Zone Safety Management Strategies
• Traffic/Incident Management Strategies
• Enforcement Strategies
• Personnel/Stakeholder Utilization Strategies

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Part 4 TMP Development

• Public Information
• Public Awareness Strategies
• Motorist Information Strategies
• TDOTs Public Involvement Plan

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Part 4 TMP Development

• Three types of Projects
• Significant
• as defined in Part 3 determination
• requires TTC, TO, and PI strategies
• Intermediate
• not Significant but additional impacts may be
  created
• requires TTC, and either TO or PI strategies
• Basic
• minimal impacts
• requires TTC only

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TMP Workbook

• TMP Transportation Management Plan
• Six-page document
• User-friendly
• Easy to follow steps
• Can be completed by hand or electronically
• Completed by the appropriate Manager

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Implementation

• The Manual is a dynamic document
• The Work Zone Committee will evaluate after first
  year of use
• Committee also charged with
• Process Review
• Training of staff law enforcement
• Subpart K compliance

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FTP Site for downloading TDOTs Work Zone
Manualftp//ftp.neel-schaffer.com/tennessee/Nas
hville/Public/workzone/