Transportation Performance Measures

What is TPM?

A strategic approach that uses system information to make investment and policy decisions to achieve transportation system performance goals. For more detailed information, view this NCDOT presentation.

Background

The Capital Area MPO is required by federal law through the Moving Ahead for Progress in the 21st Century Act (MAP-21) and the Fixing America's Surface Transportation (FAST) Act to adopt 18 specific transportation performance measures.  These measures are divided into four categories:  Safety (Roadways and Transit), Pavement/Bridge, System Performance, and Transit Assets.

The TPM process is integrated with the statewide and metropolitan transportation planning and programming process. MAP-21 and the FAST Act establish planning requirements for State DOTs, MPOs, and transit operators that integrate TPM with the adoption of STIPs/TIPs and Long-Range Transportation Plans (LRTPs) / Metropolitan Transportation Plans (MTP).

MPOs are required to establish performance targets for each of these measures on an annual basis by either:

  1. Agreeing to plan and program projects so that they contribute towards the accomplishment of the State DOT targets, or,
  2. Develop their own quantifiable targets for their metropolitan planning area by a methodology consistent with federal reporting requirements.

Ongoing TPM Process and Reporting

TPM Process and Timeline

Performance Measures

Safety - Roadway MeasuresSafety icon

  • Number of Fatalities
    • Rate of Fatalities (per 100 million Vehicle Miles Traveled - VMT)
  • Number of Serious Injuries
    • Rate of Serious Injuries (per 100 million VMT)
  • Number of Non-Motorized Fatalities and Non-Motorized Serious Injuries

Safety - Public Transportation Measures

  • 1a: Major Events
        1b: Major Event Rate
        1.1: Collision Rate (new)
        1.1.1: Pedestrian Collision Rate (new)
        1.1.2: Vehicular Collision Rate (new)
  • 2a: Fatalities
        2b: Fatality Rate
        2.1: Transit Worker Fatality Rate (new)
  • 3a: Injuries
        3b: Injury Rate
        3.1: Transit Worker Injury Rate (new)
  • 4a: Assaults on Transit Workers(new)
        4b: Rate of Assaults on Transit Worker
  • 5: System Reliability

Pavement/Bridge Performance Measures   Pothole icondBridge icon

  • Percent of pavements on the Interstate system in good condition
  • Percent of pavements on the Interstate system in poor condition

  • Percent of pavements on the non-Interstate National Highway System (NHS) in good condition
  • Percent of pavements on the non-Interstate NHS in poor condition

  • Percent of NHS bridges classified as in good condition
  • Percent of NHS bridges classified as in poor condition

System Performance/Freight Performance Measures  Clock icon

  • Percent of person miles on the Interstate system that are reliable
  • Percent of person miles on the non-Interstate NHS that are reliable
  • Percent of Interstate mileage providing for reliable truck travel times

Transit Asset Management Performance Measures  Bus icon

  • Percent of revenue vehicles that have met or exceeded their useful life
  • Percent of non-revenue vehicles that have met or exceeded their useful life
  • Percent of Admini/Maintenance facilities with a condition rating below 3.0 on the federal Transit Economic Requirements (TERM) Scale
  • Percent of passenger facilities with a condition rating below 3.0 on the federal Transit Economic Requirements (TERM) Scale