NCHRP Synthesis 384 – Forecasting Metropolitan Commercial and Freight Travel

This report's preface explains, "This synthesis report identifies methods of freight and commercial vehicle forecasting currently in professional practice, along with promising methods emerging from ongoing research. The primary focus is on metropolitan-level forecasting, although some consid- eration is given to statewide freight models. The report finds that metropolitan freight and commercial vehicle forecasting is being performed through the use of traditional four-step models, which have inherent limitations for this purpose."