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System Performance Measures

The System Performance Final Rule establishes performance measures for the purposes of assessing the Interstate and Non-Interstate National Highway System, freight movement on the Interstate System, and traffic congestion and on-road mobile source emissions. The Federal Highway Administration (FHWA) advises state Departments of Transportation (DOTs) to set realistic targets which are based on analysis of trends and projections of future efforts. This is the first time DOTs have been tasked with setting targets for these measures and limited historical data exists.


Final Rule

National Performance Management Measures; Assessing Performance of the National Highway System, Freight Movement on the Interstate System, and Congestion Mitigation and Air Quality Improvement Program


Repeal of Greenhouse Gas Measure

Performance Measures

  1. Percent of Person-Miles Traveled on the Interstate that are Reliable
  2. Percent of Person-Miles Traveled on the Non-Interstate National Highway System that are Reliable
  3. Truck Travel Time Reliability Index
  4. Annual Hours of Peak Hour Excessive Delay per Capita
  5. Percent of Non-Single Occupancy Vehicle Travel
  6. Total Emissions Reduction

Target Publications

State Performance Dashboard - Tennessee

Additional Information

CMAQ and MAP-21