Transcript NCHRP 07-21: Asset Management Guidance for Traffic Control

NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
NCHRP 07-21: Asset Management
Guidance for Traffic Control
Devices, Barriers, and Lighting
2014 ATSIP Annual Meeting
Presented by
Nancy Lefler
Vanasse Hangen Brustlin, Inc.
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Agenda
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Background
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Objective
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Approach
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Findings (so far)
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Next Steps
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Questions
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Background
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Agencies faced with growing complexities in investment
decision-making
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Transportation asset management is one strategy for
helping to address some of these challenges.
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Asset Management
MAP-21 defines asset management as:
“..a strategic and systematic process of operating,
maintaining, and improving physical assets, with a focus
on engineering and economic analysis based upon quality
information, to identify a structured sequence of
maintenance, preservation, repair, rehabilitation, and
replacement actions that will achieve and sustain a
desired state of good repair over the lifecycle of the assets
at minimum practicable cost.” (23 U.S.C. 101(a)(2),
MAP‐21 §1103).
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Asset management based on the following five
questions:
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What is the state of my assets?
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What is my required level of service?
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Which assets are critical to sustained performance?
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What are my best “Operations and Maintenance” and
“Capital Improvement” investment strategies?
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What is my best long-term funding strategy?
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Traffic and Safety Assets
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Established Asset Management practices for bridge and
pavement
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Not same level of existing guidance for traffic and
safety assets
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
OBJECTIVE
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Objective
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Develop guidance on asset management
for traffic and safety assets.
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Assets:
• Signs
• Traffic signals
• Pavement markings/markers
• Barrier systems
• Lighting
Image Sources (top to bottom): VHB, PennDOT, FHWA
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Audience
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State, county, and local agencies that have a stake in
the management of safety related assets.
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
OVERVIEW OF APPROACH
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Overview of Approach
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Phase I: Identify Best Practices and Develop Guidance Structure
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Phase II: Conduct Case Studies and Finalize Guidance
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Phase 1
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Task 1: Kickoff Meeting and Amplified Work Plan
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Task 2: Literature Review
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Task 3: Identification of Best Practices in Bridge and Pavement
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Task 4: Detailed Guidance Outline
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Task 5: Draft Chapter
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Task 6: Revise Work Plan
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Task 7: Phase I Interim Report
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Task 8: Phase I Interim Meeting
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Phase 2
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Task 9: Conduct Case Studies
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Task 10: Draft Guidance Report
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Task 11: Signal Tool Gap Analysis and Tool Development
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Task 12: Vet Guidance
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Task 13: Final Guidance Report and Tools
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
FINDINGS - LIT REVIEW AND BEST
PRACTICES
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Lit Review:
Cross-cutting issues
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Aligning agency organization for TAM
• Strategic business approach, not another bureaucracy
• Allow for self-assessment and gap analysis
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Data integration
• Each asset requires specific measures of performance - data
collection historically in silos
• Transportation systems are fundamentally spatial, allowing for
GIS-based data collection and integration
• Data collection should consider practicality, accuracy validation,
performance tracking, and prediction
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Lit Review:
Assets have varying levels of supporting
literature
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Signs, Signals, and Pavement Markings
• A great deal of literature related to performance measurement
• Critical data consist across many agency types
• Many decision support/work planning tools exist
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Lighting and Barriers
• Critical data identified, but performance measurement is
inconsistent or unclear
• Management tends to be reactive, not proactive
• Few tools exist for management of these assets
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Lit Review:
Consistent gaps identified for selected assets
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Few resources discuss practical life-cycle issues
• Cost of maintenance or replacement
• Anticipated lifespan of asset components
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Return on investment benefits – Specifically safety benefits
of providing asset
Tort liability impacts
Integration of new capabilities
Prioritization methods and safety analyses for decision
support
Timely accomplishment reporting
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Pavement & Bridge Best Practices Review:
Key Practice Areas
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Automated data collection
• Used extensively for measuring pavement condition
• Very promising for low cost data collection – some recent
examples of this
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Element data collection
• Commonly used for bridge inspections, now mandatory for NHS
bridges under MAP-21
• Can be extended to ancillary structures (e.g., high mast lights)
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QA/QC for inventory and condition data collection
• Well established area, particularly for pavement
• Basic QA/QC techniques are directly applicable
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Pavement & Bridge Best Practices Review:
Key Practice Areas (continued)
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Performance measures
• Focus area for many pavement/bridge asset management efforts
• Basic approaches for developing measures, setting targets are
transferable to traffic & safety assets
• Literature emphasizes importance of developing a small set of
key measures for summarizing condition
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Use of management systems for modeling at a network
and/or project level
• Successful examples for pavement and bridge
• Current models tend to be data hungry – need to consider how
to adapt approaches to work with less detailed data
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Pavement & Bridge Best Practices Review:
Key Practice Areas (continued)
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Work Recommendations and Tracking
• Important component of structures inspections, in particular
• Should be incorporated where visual inspections are used
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Risk Management
• Area of significant recent attention, particularly with MAP-21
requirement for risk-based asset management plans
• This area is evolving rapidly, with a number of efforts evaluating
how to incorporate risk in resource allocation and day-to-day
management practice
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Challenges in Adapting Pavement & Bridge
Management Approaches
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Data collection cost
• Cannot justify same data collection approaches for large
inventories of short-lived assets
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Time requirements
• Current approaches often require significant historic data
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Assumption of independence between assets
• Assumption generally made that the decision of when to work
on a given pavement section or bridge does not depend on
consideration of other assets
• Cannot view traffic & safety asset classes in isolation
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
GUIDANCE OUTLINE
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Overall Guidance Structure
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Introduction
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Cross-cutting Issues
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Signs
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Traffic Signals
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Pavement Markings
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Barrier Systems
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Lighting
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Topics Covered in Each Chapter
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Planning and Scoping
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Inventory and Inspection
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Condition and Performance Assessment
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Decision Support
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Work Planning and Tracking
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Additional Considerations Specific to Assets
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Case Study Locations
Utah DOT
 Minnesota DOT
 Oregon DOT / Portland, Oregon
 Virginia DOT
 Washing State DOT / Seattle, Washington
 Columbia County, GA
 Central Mississippi Planning and Development
District (Jackson)
 ????
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NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Next Steps
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Finalize case studies
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Develop and vet chapters
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Signal tool gap analysis and development
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Finalize guidance and tools - December 2015
NCHRP 07-21: Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting
Questions/Comments?