Transportation Asset Management PM Peer Exchange Performance Reporting and Target Setting (Section 2): VDOT

1
Transportation Asset Management PM Peer
ExchangePerformance Reporting and Target Setting
(Section 2) VDOTs Experience

• Connie Sorrell
• Chief of System Operations

2
How Are Measures Chosen and Targets Set?

• Legislative requirements dictate areas for
  measurement, but leave choice of measures to the
  agency
• In some cases, measures have been dictated by
  higher authority
• Governors office set safety measures for VDOT,
  DMV, and State Police
• DPB established administrative measures
• Transportation Accountability Commission set
  congestion measures
• Program managers and subject matter experts
  suggest measures, chiefs and commissioner decide
  which measures to implement
• What is needed to manage?
• May be based on research (TRB, NCHRP, AASHTO) or
  available data
• Collecting and integrating necessary data can be
  challenging
• Good data management practices are a must
• Target Setting
• Set by VDOT commissioner and chiefs
• Generally based on recent performance whats
  achievable

3
Performance Measures and Targets

• Structures and Bridges
• Measure of statewide SB rated
• Structurally Deficient
• Target 8
• Structurally Deficient (SD) one or more of its
  major components have a General Condition Rating
  (GCR) of 4 or less
• Condition ratings are used to describe the
  existing, in-place bridge or culvert as compared
  to the as-built condition.
• Evaluation is for the materials related, physical
  condition of the deck, superstructure and
  substructure components of a bridge.
• GCR is a numerical system that ranges from 0
  (failed condition) to 9 (excellent condition)
• SD structures are those with deficient elements
  that require the structure to be monitored and/or
  repaired and has either been restricted to light
  weight vehicles or has been closed to traffic

• Pavements
• Measure 1 of interstate and primary system
  lane miles rated deficient.
• Target 18
• Measure 2 of Interstate and Primary system
  pavements with IRI lt 140.
• Target gt 85
• Deficient Critical Condition Index (CCI) of lt
  60
• CCI is based on the quantity and severity of Load
  Related and Non-Load Related Distresses
• Patching and thin overlays are no longer
  effective or economical on Deficient pavements
• IRI does not provide a good basis for long-term
  maintenance planning. For that, CCI is better

4
Setting Targets for Other Assets

• Measures for other assets should address what
  customers ask for and what is needed by the
  agency to manage the program
• Outcome measures such as of inventory in good
  working condition, are better than output
  measures such as units of work accomplished.
  Output measures should support outcome measures
• Targets
• Should be achievable and realistic, may be
  maintain current
• Should reflect level of service customers want
• Acceptable condition or level of service should
  be based on customer preferences. Regular phone
  or mail surveys and focus groups are ways to
  assess customer preferences

5
Ensuring Consistency of Condition Reporting
among States

• Need clear federal definitions and guidelines on
  condition measures and reporting requirements
• National effort to standardize asset
  classes/taxonomy (especially for non pavement and
  non bridge assets)
• Studies to identify what information agencies
  actually base decisions on. National reporting
  should reflect this
• National benchmarking and peer exchange to help
  identify differences and foster consensus

6
Professional Judgment and Local Conditions in
Target Setting

• Target setting should
• Reflect what customers and stakeholders want -
  How do customer preferences differ from region to
  region, from urban to rural area, etc.? Need to
  find out
• Take into account cost of achieving the target,
  whats feasible local conditions
• Take into account the criticality of the facility
  or asset what are the consequences of an
  unexpected disruption in service on that
  facility?
• Utilize a common information base (asset,
  maintenance, operations etc.) to facilitate
  better decision making
• Avoid drastic swings in funding from year to year
  stability costs less