The purpose of this study is to develop a valid and efficient method for estimating origin-destination tables from roadside survey data. Roadside surveys, whether conducted by interviews or postcard mailback methods, typically have in common the sampling of trip origin and destination...

As California has become increasingly congested, the importance of addressing freight transportation as a public concern has grown. Most visible in our urban areas is the competition for road capacity between trucks and personal vehicles, especially during commute hours, and the public health...