Vehicle Occupancy Determinators: Final Report

This report presents the results of a study of vehicle occupancy conducted in Phoenix, Arizona to determine what factors have the greatest influence on having persons travel together to make trips in private vehicles. Although the data were collected in the Phoenix metropolitan area for the purpose of refining the MAGTPO mode split model for vehicle trips, the conclusions reached in this study of vehicle occupancy are also intended to be checked against data from other metropolitan areas.