The data are available across the National Highway System (NHS), with a spatial resolution defined by Traffic Message Channel (TMC) location codes. Using time and location information from probe vehicles, the NPMRDS generates speed and travel time data aggregated in 5-minute, 15-minute, or 1-hour increments. The NPMRDS contains field-observed travel time and speed data collected anonymously from a fleet of probe vehicles (cars and trucks) equipped with mobile devices. National Performance Management Research Data Set Overview Using the NPMRDS, agencies can better benchmark the baseline mobility conditions prior to work zone activity, quantify and analyze work zone mobility impacts both during construction and post-construction, and implement mobility objectives and targets to proactively manage work zone mobility impacts. The NPMRDS offers a new opportunity to monitor and report work zone performance measures.
To assist agencies with meeting the MAP-21 regulations, the Federal Highway Administration (FHWA) provides free access to the National Performance Management Research Data Set (NPRMDS), a national database of probe-vehicle-based speed and travel time data.
Federal regulations require setting objectives and targets to guide transportation funding allocation based on safety and operational performance measures.
Transportation agencies are increasingly using probe vehicle data for transportation system performance management and as a resource for meeting the federal requirements of monitoring and reporting congestion and freight performance enacted in the Moving Ahead for Progress in the 21st Century Act (MAP-21). Modal Coverage: Truck and passenger car Data Format: CSV and ArcGIS shapefiles (road segment details) Spatial Resolution: TMC level (about ½ mile to 1 mile in urban/suburban areas and 5-10 miles in rural areas) Metrics: Speed, travel time, and static AADT (2017) Users: Federal, State, and regional agencies Purpose: Support MAP-21 regulation and ongoing transportation system mobility performance measurement The National Performance Management Research Data Set in a Nutshell
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