Cost-Effective Performance Measures for Travel Time Delay, Variation and Reliability



This guidebook presents a framework and cost-effective methods to estimate, predict, measure, and report travel time, delay, and reliability performance data. This guidebook also presents various data collection methods, analysis approaches, and applications that effectively support transportation planning and decision-making for capital and operational investments and for quality of service monitoring and evaluation.

Source Organization Location

Washington, DC

Operations Area of Practice

  • Active Traffic Management (ATM)
  • Travel Demand Management
  • Work Zone Management

Organizational Capability Element

  • Economic Analysis of Reliability/Costs and Benefits
  • Evaluation of Operations Strategies
  • Performance Measurement
  • Active Traffic Management/Travel Demand Management/Pricing
  • Arterial Traffic Control Device Operations
  • Emergency Transportation Operations
  • Freeway Operations
  • Freight Management Operations
  • Integrated Corridor Management
  • Planned Special Event Management
  • Road Weather Management
  • Traffic Incident Management
  • Work Zone Management
  • Outreach & Marketing

Content Type

  • Research

Role in Organization

  • Director / Program Manager
  • Engineer
  • Manager / First Line Supervisor
  • Operator
  • Principal Engineer
  • Researcher/Academic
  • Senior Engineer
  • Senior Manager

Publishing Organization


Maturity Level of Program

  • Deployment (L3)
  • Development (L2)
  • Monitoring (L4)


  • Available Tools
  • Learning

Project Website

Cost-Effective Performance Measures for Travel Time Delay, Variation, and Reliability

Prime Contractor
Cambridge Systematics, Dowling Associates, System Metrics Group and Texas A&M Transportation Institute
Issue Date
January 1st, 2008
Publication Number
NCHRP Report 618
ISBN Number
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