Guide for Selecting Level-of-Service Targets for Maintaining and Operating Highway Assets

Quarterly Reports Other Documents Final Report
December 2011
June 2012
March 2013
 Confidence Intervals for COMPASS 2014
Highway Maintenance Level of Service (LOS)
 Final Report

Primary Investigator

Teresa Adams
University of Wisconsin-Madison
1415 Engineering Drive, 2205 EH
Madison, WI 53706


Asset management principles are used by state departments of transportation (DOTs) to operate, maintain, upgrade, and expand physical assets effectively throughout their lifecycle. These principles include (1) establishing high-level policy goals and objectives, (2) developing performance measures to accomplish the goals and objectives, (3) analyzing options and tradeoffs for investment strategies, (4) making decisions based on quality information and data, and (5) monitoring outcomes to provide accountability and feedback. A key component of such a strategy is the identification of important maintenance features that make up highway infrastructure and the establishment of a level-of-service target for each. Such targets have often been established based on expert opinion of individuals and not necessarily following a systematic process. In general, level of service is defined in terms related to customer service, such as safety, convenience, aesthetics, comfort, or mobility. However, there are no widely accepted methodologies for determining the appropriate levels of service associated with the condition of the different assets. Research is needed to identify methodologies and develop a guide for selecting target levels of service for maintaining and operating highway assets. Such a guide will help highway agencies better utilize asset management principles and manage highway assets more effectively.


The objective of this research is to develop a guide for selecting level-of-service targets for maintaining and operating highway assets.


  1. Lit review/summary of results of state survey
  2. Synthesis of commonly used features
  3. Technical memo for recommending processes for selecting LOS targets
  4. Process plan for developing the guide
  5. Updated detailed work plan for phase II
  6. Interim report
  7. Draft guide
  8. Draft final report, final report, and final version of the guide

Project Information

  • Duration: 24 months
  • Dates: April 1, 2011 – March 31, 2013
  • Budget: $300,000
  • Student Involvement: None
  • Modal Orientation: Highway
  • Project ID: CFIRE 05-06
Print Friendly