TTI has developed and implemented performance measures for freight mobility and reliability. The documentation below describe the methods and measures used to quantify truck delay, wasted diesel fuel, and associated costs, as well as urban area freight monetary values and freight reliability.
- Conceptual Framework and Trucking Application for Estimating Impact of Congestion on Freight (2010)
2010 paper describing a conceptual framework and trucking application to estimate the impact of congestion on freight by estimating corridor freight values.
- Incorporating Urban Area Truck Freight Value into the Texas A&M Transportation Institute’s Urban Mobility Report
Urban Freight Costs
- Estimating Urban Freight Congestion Costs: Methodologies, Measures, and Applications (January 2013)
Paper describing truck-related measures that are included in the Urban Mobility Report and Congested Corridors Report including truck delay, wasted diesel fuel, and associated costs.
Measures for Canada
- Evaluating Global Freight Corridor Performance for Canada (March 2011)
Paper published in the inaugural ITE Journal of Transportation (page 39) describing the development and application of truck mobility and reliability indicators for measuring freight system performance for Canada. Includes methods to weight the measures by twenty-foot equivalent units (TEUs) for supply chain analyses.
Truck Travel Times
- Using Intelligent Transportation Systems Travel-Time Data for Multimodal Analyses and System Monitoring (2001)
2001 Paper describing the differences in travel time between trucks and toll-tag equipped vehicles along a 2-mile segment of US 290 in Houston, Texas. Table 3 summarizes the results and indicates that across congestion levels trucks were an average of 6 percent slower than toll-tag equipped vehicles.