Transcript 2008 Damron 1 - American Association of State Highway and

TDOT’s 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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Work Zone Safety and
Mobility Manual
Today’s Session
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Present Manual
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Present TMP Workbook
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Discussion
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Work Zone Safety and
Mobility Manual
Work Zone Manual
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Part 1 – Purpose & Commitment
Part 2 – Procedures & Initiatives
Part 3 – Significant Assessment
Part 4 – TMP Development
TMP Workbook
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Mobility Manual
Work Zone Manual
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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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Mobility Manual
Part 1 – Purpose & Commitment
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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
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Roles & Responsibilities
Types of Projects
– PPRM, Design, Structures, Maintenance
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Processes
– Not to change current, just tying it all
together
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Part 2 – Procedures & Initiatives
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Standing TMP’s
– Routine, recurring activities/projects within
the Design or Maintenance Divisions
– Ex: resurfacing, pot hole repair, on-call
contract activities
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Exempt Activities
– Ex: litter removal, mowing, etc.
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Mobility Manual
Part 2 – Procedures & Initiatives
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Training
– All personnel involved in the development,
design, implementation, operation, inspection
and enforcement of work zone related
transportation management and traffic control
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Performance Assessment
Process Review
– Standing Committee on Work Zones
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Mobility Manual
Part 3 – Significance Assessment
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Considerations for Assessment
– Project Location
– ADT
– Urban/Rural Setting
– Route Type
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Mobility Manual
Part 3 – Significance Assessment
A Significant Project is one for which any of the
following criteria exist:
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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
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Can also consider qualitative criteria
– Business impacts
– Detour effects
– Effect on public
– Careful consideration
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Mobility Manual
Part 4 – TMP Development
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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
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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
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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
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Public Information
– Public Awareness Strategies
– Motorist Information Strategies
– TDOT’s Public Involvement Plan
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Part 4 – TMP Development
Three types of Projects
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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
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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
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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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Mobility Manual
FTP Site for downloading
TDOT’s Work Zone Manual:
ftp://ftp.neelschaffer.com/tennessee/Nashville/Public/
workzone/
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Mobility Manual