Optimizing Technology for Collecting Long-Distance Travel Data

The Arizona Statewide Travel Demand Model (AZTDM) estimates, in part, long-distance trips that occur at least partly in Arizona. Knowledge of these trips is used for traffic forecasts, project prioritization, engineering design studies, and alternative mobility investment decisions, such as rail intercity transit. However, AZTDM's main input source, the long-distance component of the FHWA's National Household Travel Survey (NHTS), has not been updated since 2002 and even then had an insufficient sample size for the Southwest. Better data for current travel behavior is needed.