Temporal stability of trip generation relations. Paper presented at the 52nd Annual Meeting of the Highway Research Board HRB, Washington, D.C., January 1973.

The findings of the evaluation of trip generation models based on household data rather than on zonal aggregate data are discussed. The major objectives of the research were to examine the form of household travel relations, determine the stability of these relations over time, and evaluate the ability of household models to estimate future travel. The results indicate that household models could successfully predict household travel.