...this report is a summary of the work completed by the Boston Transportation Planning Review (BTPR) on the proposal for a circumferential transit facility in metropolitan Boston; the efforts of the BTPR have been directed towards a definition of the need for circumferential transit in Boston and a preliminary investigation of possible alternative means of supplying the needed service and of the feasibility of these alternatives; a major portion of this work has involved analysis of the possible application of Personal Rapid Transit (PRT) technology to the Transit Circumferential situation; includes cost estimates and estimated benefits expressed in dollars; copies of this item were in the BRA collection...