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Development of an Asset Management Framework for the Interstate Highway System presented to the AASHTO Performance Managem...
Outline <ul><li>Importance of the IHS </li></ul><ul><li>NCHRP Project 20-74 </li></ul><ul><li>Draft Interstate Asset Manag...
Importance of the IHS <ul><li>Premier highway system in the U.S.  –  1% of the U.S. road network, but carries 20% of VMT <...
Importance of the IHS  AADT and Pavement Condition Along an IHS Corridor 0 50 100 150 200 250 300 350 AADT (vehicles per d...
NCHRP Project 20-74 Objective <ul><li>Develop a practical framework for  applying asset management principles and practice...
NCHRP Project 20-74 Work Steps <ul><li>Evaluate available performance measures, data, risk assessment approaches and analy...
NCHRP Project 20-74 Project Team <ul><li>Cambridge Systematics – prime contractor </li></ul><ul><li>Applied Research Assoc...
Interstate Asset Management Framework Basic Asset Management Process Policy Goals and Objectives Analysis of Options and T...
Interstate Asset Management Framework  Focus Areas for IHS Asset Management <ul><li>Defining how to better incorporate ass...
Risk Management  Risk Taxonomy (adapted from NCHRP 20-59) <ul><li>Substandard design  </li></ul><ul><li>Construction defec...
Risk Management Basic Approach <ul><li>Identify critical infrastructure and risks </li></ul><ul><li>Define threat/hazard s...
IHS Asset Data and Tools  Typical IHS Assets <ul><li>Rest areas </li></ul><ul><li>Toll plazas </li></ul><ul><li>Weigh stat...
IHS Asset Data and Tools Approach <ul><li>Reviewed available asset data and analytical tools for asset management </li></u...
IHS Performance Measures Motivation <ul><li>Resource allocation should be guided by a set of policy objectives, performanc...
IHS Performance Measures Performance Measure Evaluation Approach Step 1:  Review Existing Measures Step 2:  Assess Needs S...
IHS Performance Measures  Selecting Suitable Performance Measures <ul><li>Feasibility –calculated from federally-reported ...
IHS Performance Measures Recommended Core Measures <ul><li>Preservation </li></ul><ul><ul><li>Pavement </li></ul></ul><ul>...
IHS Performance Measures Recommended Core Measures <ul><li>Mobility and accessibility </li></ul><ul><ul><li>Travel time in...
IHS Performance Measures Additional Comprehensive Measures <ul><li>Includes other measures that </li></ul><ul><ul><li>Shou...
Interstate Asset Management Plan Why Have a Plan? <ul><li>Draws attention to importance of the IHS/Function Critical Netwo...
Interstate Asset Management Plan Sample Table of Contents <ul><li>Significance of the Interstate Highway System  </li></ul...
Next Steps <ul><li>Have completed the final report </li></ul><ul><li>NCHRP is now preparing the report for publication </l...
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  1. 1. Development of an Asset Management Framework for the Interstate Highway System presented to the AASHTO Performance Management Committee presented by Bill Robert Cambridge Systematics, Inc. February 2009 Transportation leadership you can trust.
  2. 2. Outline <ul><li>Importance of the IHS </li></ul><ul><li>NCHRP Project 20-74 </li></ul><ul><li>Draft Interstate Asset Management Framework </li></ul><ul><ul><li>Basic asset management concepts </li></ul></ul><ul><ul><li>Focus areas for IHS asset management </li></ul></ul><ul><ul><li>Interstate Asset Management Plan </li></ul></ul><ul><li>Next Steps </li></ul>
  3. 3. Importance of the IHS <ul><li>Premier highway system in the U.S. – 1% of the U.S. road network, but carries 20% of VMT </li></ul><ul><li>Built to national standards, but cannot be managed with a “one size fits all” approach </li></ul><ul><ul><li>Managed by many agencies </li></ul></ul><ul><ul><li>Great variation in physical conditions, traffic levels, etc... </li></ul></ul><ul><li>Every segment vital at some level (national, state, regional) </li></ul><ul><li>A logical system on which to apply asset management principles </li></ul><ul><li>Selected other NHS segments may be of comparable importance </li></ul>
  4. 4. Importance of the IHS AADT and Pavement Condition Along an IHS Corridor 0 50 100 150 200 250 300 350 AADT (vehicles per day in Thousands) Very Good Good Acceptable Not Acceptable 0 100 200 300 400 500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 Distance Along Corridor (miles)
  5. 5. NCHRP Project 20-74 Objective <ul><li>Develop a practical framework for applying asset management principles and practices to managing IHS investments </li></ul>
  6. 6. NCHRP Project 20-74 Work Steps <ul><li>Evaluate available performance measures, data, risk assessment approaches and analytical tools </li></ul><ul><li>Develop an Interstate Asset Management Framework </li></ul><ul><li>Pilot the framework </li></ul><ul><li>Present the draft framework in a workshop </li></ul><ul><li>Revise the framework based on the workshop </li></ul><ul><li>Evaluate benefits and barriers to implementation </li></ul><ul><li>Finalize the framework </li></ul>
  7. 7. NCHRP Project 20-74 Project Team <ul><li>Cambridge Systematics – prime contractor </li></ul><ul><li>Applied Research Associates – data, risk assessment </li></ul><ul><li>Parsons Brinckerhoff – framework development, workshop, benefits, and barriers </li></ul><ul><li>Arora & Associates – risk assessment </li></ul><ul><li>KLS Engineering – performance measures </li></ul>
  8. 8. Interstate Asset Management Framework Basic Asset Management Process Policy Goals and Objectives Analysis of Options and Tradeoffs Resource Allocation Decisions Financial Staff Equipment Other Program and Service Delivery System Condition and Service Levels Funding Levels Customer Input Preservation Operations Capacity Expansion
  9. 9. Interstate Asset Management Framework Focus Areas for IHS Asset Management <ul><li>Defining how to better incorporate assessment of the risks of system failure into an asset management framework </li></ul><ul><li>Providing guidance for handling all IHS assets, particularly assets besides pavements and bridges </li></ul><ul><li>Recommending a set of measures tailored for use in reporting and facilitating discussion of IHS performance </li></ul>
  10. 10. Risk Management Risk Taxonomy (adapted from NCHRP 20-59) <ul><li>Substandard design </li></ul><ul><li>Construction defects </li></ul><ul><li>Materials defects </li></ul><ul><li>Unexpected heavy traffic </li></ul>Performance <ul><li>Heavy rain </li></ul><ul><li>Strong wind </li></ul><ul><li>Heavy snow and ice </li></ul><ul><li>Earthquake </li></ul><ul><li>Hurricanes </li></ul><ul><li>Flood </li></ul><ul><li>Mud/landside </li></ul>Natural Hazards <ul><li>Terrorist attack </li></ul><ul><li>Crime </li></ul><ul><li>War attack </li></ul>Intentional Threat <ul><li>Oil spill </li></ul><ul><li>Hazardous materials spill </li></ul><ul><li>Vehicular crashes </li></ul>Unintentional Hazard Examples Risk Type
  11. 11. Risk Management Basic Approach <ul><li>Identify critical infrastructure and risks </li></ul><ul><li>Define threat/hazard scenarios </li></ul><ul><li>Estimate scenario impacts </li></ul><ul><ul><li>Ideally should base analysis on modeling of potential economic losses </li></ul></ul><ul><ul><li>Thresholding approaches (high/medium/low risk) can be used as an alternative </li></ul></ul><ul><li>Identify and evaluate mitigation strategies </li></ul><ul><li>Develop priorities for risk mitigation </li></ul>
  12. 12. IHS Asset Data and Tools Typical IHS Assets <ul><li>Rest areas </li></ul><ul><li>Toll plazas </li></ul><ul><li>Weigh stations </li></ul><ul><li>Pavement markings/ delineators </li></ul><ul><li>Lighting </li></ul><ul><li>Guardrails </li></ul><ul><li>Median barriers </li></ul><ul><li>Bridges </li></ul><ul><li>Tunnels </li></ul><ul><li>Culverts/ drainage </li></ul><ul><li>Noise barrier walls </li></ul><ul><li>Pavement </li></ul><ul><li>Maintenance depots </li></ul><ul><li>Pump houses </li></ul><ul><li>Communication facilities </li></ul>Facilities <ul><li>Impact attenuators </li></ul><ul><li>Signs </li></ul><ul><li>Surveillance/ monitor equip. </li></ul><ul><li>Signal/control equipment </li></ul>Safety Features <ul><li>Retaining walls </li></ul><ul><li>Overhead sign structures </li></ul><ul><li>High mast light poles </li></ul>Structures <ul><li>Shoulders </li></ul>Roads Asset Type Asset Category
  13. 13. IHS Asset Data and Tools Approach <ul><li>Reviewed available asset data and analytical tools for asset management </li></ul><ul><ul><li>Built on work performed previously for NCHRP Project 20-57 </li></ul></ul><ul><li>Recommended minimum data for IHS asset management </li></ul><ul><li>Recommended an approach to using readily available analytical tools to support asset management, e.g. </li></ul><ul><ul><li>Pavement/bridge management systems </li></ul></ul><ul><ul><li>FHWA analysis tools - HERS-ST, NBIAS </li></ul></ul><ul><ul><li>AssetManager NT </li></ul></ul><ul><li>Piloted the approach on 3 IHS corridors </li></ul>
  14. 14. IHS Performance Measures Motivation <ul><li>Resource allocation should be guided by a set of policy objectives, performance measures and targets defined for each measure </li></ul><ul><li>The concepts of performance-based resource allocation are not unique to the IHS </li></ul><ul><li>What is unique is the practical application of a performance-based approach to the IHS </li></ul><ul><ul><li>Criteria for selecting measures </li></ul></ul><ul><ul><li>Core versus comprehensive measures </li></ul></ul><ul><ul><li>Recommended set of performance measures for the IHS </li></ul></ul>
  15. 15. IHS Performance Measures Performance Measure Evaluation Approach Step 1: Review Existing Measures Step 2: Assess Needs Step 3: Define Selection Criteria Step 4: Apply Selection Criteria Step 5: Finalize Set of Measures <ul><li>Perform literature review </li></ul><ul><li>Inventory existing measures </li></ul><ul><li>Compile list of measures relevant for IHS Asset Management </li></ul><ul><li>Evaluate needs for IHS performance measures </li></ul><ul><li>Establish performance measure categories </li></ul><ul><li>Perform gap assessment </li></ul><ul><li>Supplement set of existing measures </li></ul><ul><li>Organize measures by category </li></ul><ul><li>Feasibility </li></ul><ul><li>Policy-sensitive </li></ul><ul><li>Supports long-term view </li></ul><ul><li>Useful for decision support </li></ul><ul><li>Useful across organization and beyond </li></ul><ul><li>Evaluate each measure </li></ul><ul><li>Group measures by asset/objective </li></ul><ul><li>Characterize variations between like measures </li></ul><ul><li>Develop initial set </li></ul><ul><li>Peer review </li></ul><ul><li>Develop recommended set </li></ul><ul><li>Distinguish between core and comprehensive </li></ul>
  16. 16. IHS Performance Measures Selecting Suitable Performance Measures <ul><li>Feasibility –calculated from federally-reported data, or other data generally collected for IHS </li></ul><ul><li>Policy-sensitive – directly related to an agency’s stated policy objectives </li></ul><ul><li>Long-term and strategic – able to forecast the measure over time and support long-term tracking </li></ul><ul><li>Understandable – easily understood and communicated within an organization and to external stakeholders </li></ul><ul><li>Useful for decision making – keeping the set of measures as small as possible </li></ul>
  17. 17. IHS Performance Measures Recommended Core Measures <ul><li>Preservation </li></ul><ul><ul><li>Pavement </li></ul></ul><ul><ul><ul><li>Structural adequacy (combination of riding, rutting, cracking and faulting) </li></ul></ul></ul><ul><ul><ul><li>Ride quality (IRI) </li></ul></ul></ul><ul><ul><li>Bridge </li></ul></ul><ul><ul><ul><li>Percent classified as structurally deficient (SD) – weighted by area </li></ul></ul></ul><ul><ul><li>Signs </li></ul></ul><ul><ul><ul><li>Percent functioning as intended </li></ul></ul></ul><ul><ul><li>Pavement markings </li></ul></ul><ul><ul><ul><li>Percent functioning as intended </li></ul></ul></ul><ul><ul><li>Guardrail </li></ul></ul><ul><ul><ul><li>Percent functioning as intended </li></ul></ul></ul>
  18. 18. IHS Performance Measures Recommended Core Measures <ul><li>Mobility and accessibility </li></ul><ul><ul><li>Travel time index – ratio of actual travel time to ideal (unconstrained) time </li></ul></ul><ul><ul><li>Delay per vehicle (hours per vehicle) </li></ul></ul><ul><li>Safety </li></ul><ul><ul><li>Overall crash rate </li></ul></ul><ul><ul><li>Fatal crash rate </li></ul></ul><ul><li>Environmental </li></ul><ul><ul><li>Recommend a report card approach </li></ul></ul>
  19. 19. IHS Performance Measures Additional Comprehensive Measures <ul><li>Includes other measures that </li></ul><ul><ul><li>Should be collected and reported, but for which data are not consistently available </li></ul></ul><ul><ul><li>May or may not be in an asset management program </li></ul></ul><ul><li>Preservation </li></ul><ul><ul><li>Percent functioning as intended for all remaining assets </li></ul></ul><ul><li>Mobility </li></ul><ul><ul><li>Winter maintenance – time to restore pavement surface </li></ul></ul><ul><li>Delivery </li></ul><ul><ul><li>Schedule adherence and cost control </li></ul></ul>
  20. 20. Interstate Asset Management Plan Why Have a Plan? <ul><li>Draws attention to importance of the IHS/Function Critical Network </li></ul><ul><li>Establishes set of performance measures for high-level reporting on interstate assets </li></ul><ul><li>Relates predicted performance of the IHS to available funds </li></ul><ul><li>Presents an approach to incorporating risk assessment in decision-making </li></ul><ul><li>Improves agency accountability </li></ul>
  21. 21. Interstate Asset Management Plan Sample Table of Contents <ul><li>Significance of the Interstate Highway System </li></ul><ul><li>Assets Included in the Plan </li></ul><ul><li>Measuring Performance </li></ul><ul><li>Past and Present Funding </li></ul><ul><li>Risk Assessment </li></ul><ul><li>Interstate Investment Strategy </li></ul><ul><li>Updating the Plan </li></ul>
  22. 22. Next Steps <ul><li>Have completed the final report </li></ul><ul><li>NCHRP is now preparing the report for publication </li></ul><ul><ul><li>Will be published as NCHRP Report 632: An Asset-Management Framework for the Interstate Highway System </li></ul></ul><ul><li>For more information on NCHRP 20-74 contact: </li></ul><ul><ul><ul><li>Bill Robert </li></ul></ul></ul><ul><ul><ul><li>Cambridge Systematics </li></ul></ul></ul><ul><ul><ul><li>617-354-0167 </li></ul></ul></ul><ul><ul><ul><li>[email_address] </li></ul></ul></ul>
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