Collection problems and the promise of automatic vehicle identification. Paper presented at the 53rd Annual Meeting of the Highway Research Board HRB, Washington, D.C., January 1974.

Because traditional toll collection can not be used as a congestion pricing method on federally aided roads, another equitable method needs to be found. Three types of automatic vehicle identification presently available optical systems, radio frequency systems, and microwave systems- are discussed. Field test results of radio frequency equipment are given.