| Description |
TRB's National Cooperative Freight Research Program (NCFRP) has published Report 26: Guidebook for Developing Subnational Commodity Flow Data. This guidebook provides direction for state and local agencies interested in obtaining and compiling commodity flow data. Specifically, this guidebook contains systematic procedures for practitioners to complete data collection activities, including: conducting establishment surveys, conducting roadside truck intercept surveys, collecting locally available data, and disaggregating commodity flow data. |
