TRB’s National Cooperative Highway Research Program (NCHRP) Syntheses 364: Estimating Toll Road Demand and Revenue examines the state of the practice for forecasting demand and revenues for toll roads in the United States.  The report explores the models that are used to forecast the demand for travel and the application of these models to project revenues as a function of demand estimates.  This topic is published at https://www.trb.org/news/blurb_detail.asp?id=7570