Pending adoption of final USDOT rules on national transportation performance management requirements, TxDOT leadership is taking steps to begin incorporating some aspects of those anticipated requirements in state transportation plans to better prepare the Texas transportation planning community for performance-based planning.
The information below presents the TxDOT/TEMPO-endorsed set of proposed national measures for use in Texas transportation planning efforts. The charts depict the FY 2014 performance results, together with short-term (FY 2018 – the end of the current Statewide Transportation Improvement Plan) and mid-term (FY 2025 – the end of the next Unified Transportation Program) performance targets at the statewide (and urban and rural, where appropriate) level for these measures. TxDOT and its partners will, of course, adapt this set of measures when the final federal rulemaking on national performance measures is available.
Goal: To work with the Metropolitan Planning Organizations (MPOs) to keep system delay and reliability within the targets set as proportion to population growth.
Hours of Delay: The time it takes to travel a given roadway minus how long it would take at the posted speed limit if there were no interference or congestion.
Reliability Index: The ratio of the 80th percentile travel time to the free-flow travel time.
The following charts show increases in congestion and less reliable conditions in all measures and on all road systems.
In general, congestion was significantly greater in FY 2014 than anticipated in the FY 2014 targets set last year.
The projected targets for FY 2018 and FY 2025 show a much more congested system in future years than in FY 2014.
Performance Measure: Annual Hours of Delay - National Highway System (NHS) (millions)
Performance Measure: Annual Hours of Delay - Interstates (millions)
Performance Measure: Annual Hours of Delay - Non-Interstate NHS (millions)
Performance Measure: Reliability Index - NHS
Performance Measure: Reliability Index - Interstates
Performance Measure: Reliability Index - Non-Interstate NHS