International activity in personal rapid transit development and assessment. Paper presented at the 52nd Annual Meeting of the Highway Research Board HRB, Washington, D.C., January 1973.

A survey of activities in the personal rapid transit field done for the OECD is reported. It is stated that most personal rapid transit studies have failed to effectively recognize and deal with a sizable clientele of users that could generate political support for implementing PRT systems if technologically and economically feasible.