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TDOT’s WORK ZONE SAFETY AND TDOT’s WORK ZONE SAFETY AND MOBILITY MANUALMOBILITY MANUAL

Use & Implementation of Use & Implementation of Transportation Management Transportation Management

PlanPlan

AASHTO Subcommittee on DesignDyan C. Damron, P.E. – Neel-Schaffer, Inc. Dyan C. Damron, P.E. – Neel-Schaffer, Inc.

July 15, 2008

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Today’s SessionToday’s Session

Present Manual Present Manual

Present TMP WorkbookPresent TMP Workbook

DiscussionDiscussion

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Work Zone ManualWork Zone Manual

Part 1 – Purpose & CommitmentPart 1 – Purpose & Commitment Part 2 – Procedures & InitiativesPart 2 – Procedures & Initiatives Part 3 – Significant AssessmentPart 3 – Significant Assessment Part 4 – TMP DevelopmentPart 4 – TMP Development TMP WorkbookTMP Workbook

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Work Zone ManualWork Zone Manual

Describes background and details Describes background and details for completing the TMP Workbookfor completing the TMP Workbook

To be used as a reference to the To be used as a reference to the WorkbookWorkbook

Descriptive “how-to” for Descriptive “how-to” for completion of Workbookcompletion of Workbook

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Part 1 – Purpose & CommitmentPart 1 – Purpose & Commitment

Department has taken the Department has taken the initiative to apply this process to initiative to apply this process to all projects under TDOT controlall projects under TDOT control

Three Primary GoalsThree Primary Goals– Maximize safetyMaximize safety– Minimize delayMinimize delay– Promote consistencyPromote consistency

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Part 2 – Procedures & Part 2 – Procedures & InitiativesInitiatives

Roles & ResponsibilitiesRoles & Responsibilities Types of ProjectsTypes of Projects

– PPRM, Design, Structures, PPRM, Design, Structures, MaintenanceMaintenance

ProcessesProcesses– Not to change current, just tying it Not to change current, just tying it

all togetherall together

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Part 2 – Procedures & Part 2 – Procedures & InitiativesInitiatives

Standing TMP’sStanding TMP’s– Routine, recurring activities/projects Routine, recurring activities/projects

within the Design or Maintenance within the Design or Maintenance DivisionsDivisions

– Ex: resurfacing, pot hole repair, on-Ex: resurfacing, pot hole repair, on-call contract activitiescall contract activities

Exempt ActivitiesExempt Activities– Ex: litter removal, mowing, etc.Ex: litter removal, mowing, etc.

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Part 2 – Procedures & Part 2 – Procedures & InitiativesInitiatives

TrainingTraining– All personnel involved in the development, All personnel involved in the development,

design, implementation, operation, design, implementation, operation, inspection and enforcement of work zone inspection and enforcement of work zone related transportation management and related transportation management and traffic control traffic control

Performance Assessment Performance Assessment Process ReviewProcess Review

– Standing Committee on Work ZonesStanding Committee on Work Zones

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Part 3 – Significance Part 3 – Significance AssessmentAssessment

Considerations for AssessmentConsiderations for Assessment– Project LocationProject Location– ADTADT– Urban/Rural SettingUrban/Rural Setting– Route TypeRoute Type

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Part 3 – Significance Part 3 – Significance AssessmentAssessment

A Significant Project is one for which any of A Significant Project is one for which any of the following criteria exist:the following criteria exist:

On the interstate system located within a recognized TMA On the interstate system located within a recognized TMA that occupies a given location for at least three days that occupies a given location for at least three days duration with either continuous or intermittent lane duration with either continuous or intermittent lane closures. closures.

On an interstate route or any route with an AADT of at On an interstate route or any route with an AADT of at least 50,000 vehicles per day for which all lanes in one least 50,000 vehicles per day for which all lanes in one direction will be closed to traffic.direction will be closed to traffic.

The delay through the limits of the work zone is at least 30 The delay through the limits of the work zone is at least 30 minutes above the normal delay under typical non-work minutes above the normal delay under typical non-work conditions. conditions.

Deemed Significant by extraordinary qualitative Deemed Significant by extraordinary qualitative characteristics. This determination may be made on the characteristics. This determination may be made on the basis of conditions such as high levels of public interest, basis of conditions such as high levels of public interest, business/community impacts, or long work zone duration. business/community impacts, or long work zone duration.

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Part 3 – Significance Part 3 – Significance AssessmentAssessment

Can also consider qualitative Can also consider qualitative criteriacriteria– Business impactsBusiness impacts– Detour effectsDetour effects– Effect on publicEffect on public– Careful considerationCareful consideration

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Part 4 – TMP DevelopmentPart 4 – TMP Development

Description of Potential StrategiesDescription of Potential Strategies– TTC, TO, PI - comprehensive list of TTC, TO, PI - comprehensive list of

strategiesstrategies– Based on current Department Based on current Department

practicepractice– Encourages consideration of Encourages consideration of

innovative practicesinnovative practices

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Part 4 – TMP DevelopmentPart 4 – TMP Development

Temporary Traffic ControlTemporary Traffic Control– Work Zone Construction StrategiesWork Zone Construction Strategies– Traffic Control and Safety Device Traffic Control and Safety Device

StrategiesStrategies– Coordination and Contracting Coordination and Contracting

StrategiesStrategies– Advanced Material and Methodology Advanced Material and Methodology

StrategiesStrategies

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Part 4 – TMP DevelopmentPart 4 – TMP Development

Transportation OperationsTransportation Operations– Travel Demand Management StrategiesTravel Demand Management Strategies– Corridor/Network Management StrategiesCorridor/Network Management Strategies– Work Zone Safety Management StrategiesWork Zone Safety Management Strategies– Traffic/Incident Management StrategiesTraffic/Incident Management Strategies– Enforcement StrategiesEnforcement Strategies– Personnel/Stakeholder Utilization StrategiesPersonnel/Stakeholder Utilization Strategies

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Part 4 – TMP DevelopmentPart 4 – TMP Development

Public Information Public Information – Public Awareness StrategiesPublic Awareness Strategies– Motorist Information StrategiesMotorist Information Strategies– TDOT’s TDOT’s Public Involvement PlanPublic Involvement Plan

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Part 4 – TMP DevelopmentPart 4 – TMP Development

Three types of ProjectsThree types of Projects SignificantSignificant

– as defined in Part 3 determinationas defined in Part 3 determination– requires TTC, TO, and PI strategiesrequires TTC, TO, and PI strategies

IntermediateIntermediate– not Significant but additional impacts may be not Significant but additional impacts may be

createdcreated– requires TTC, and either TO or PI strategiesrequires TTC, and either TO or PI strategies

BasicBasic– minimal impactsminimal impacts– requires TTC onlyrequires TTC only

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TMP WorkbookTMP Workbook

TMP = Transportation Management TMP = Transportation Management PlanPlan

Six-page documentSix-page document User-friendlyUser-friendly Easy to follow stepsEasy to follow steps Can be completed by hand or Can be completed by hand or

electronicallyelectronically Completed by the appropriate ManagerCompleted by the appropriate Manager

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ImplementationImplementation

The Manual is a dynamic document The Manual is a dynamic document The Work Zone Committee will The Work Zone Committee will

evaluate after first year of useevaluate after first year of use Committee also charged with:Committee also charged with:

– Process ReviewProcess Review– Training of staff & law enforcementTraining of staff & law enforcement– Subpart K complianceSubpart K compliance

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FTP Site for downloading FTP Site for downloading TDOT’s Work Zone Manual:TDOT’s Work Zone Manual:

ftp://ftp.neel-schaffer.com/tennessee/ftp://ftp.neel-schaffer.com/tennessee/Nashville/Public/workzoneNashville/Public/workzone

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