This report documents the Long-Term Pavement Program (LTPP) research study that developed methodologies and computational procedures to estimate annual average daily truck traffic (AADTT) in the design lane using Highway Performance Monitoring System (HPMS) data as inputs. State highway agencies (SHAs) that do not collect design lane-specific truck volumes, can use the computed parameter tables and equations described in this report to convert HPMS traffic data to design lane-specific AADTT for use with LTPP and MEPDG models to support statewide or network-level pavement performance analyses and pavement management decisions. However, site-specific truck data are still highly recommended for project-level pavement performance analysis and design.

Contractors, researchers, and consultants can also benefit from the product of this research.

Recommended Citation: Federal Highway Administration, Estimating Design Lane Truck Volumes From HPMS Traffic Data for Long-Term Pavement Performance Analyses (Washington, DC: 2023) https://doi.org/10.21949/1521435