North Carolina Department of Transportation
Research & Innovation Summit – 2021

Geospatial Mapping of Truck Travel Performance Measures to Identify Areas Susceptible to Congestion

Authors: Sarvani V. Duvvuri, Ph.D. and Srinivas S. Pulugurtha, Ph.D., P.E., F.ASCE
University of North Carolina at Charlotte
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  • Trucking contributes to 71% of the freight tonnage transported in the United States
  • “Freight Transportation Forecast” reveals a 36% growth in freight volume by 2031
  • Link-leveltraveltimesaddressvariationsandreliability
  • Average travel time (ATT), buffer time index (BTI), planning time index (PTI), and travel time index (TTI) are suitable performance measures
  • Geospatial mapping helps to visualize and understand the region-wide truck travel patterns and identify chokepoints


For questions about this research, contact Srinivas Pulugurtha at