AN EVALUATION OF TECHNIQUES FOR HIGHWAY USER COST COMPUTATION

THE EA-1 (COMPUTER SIMULATION) AND AASHO METHODS ARE COMPARED FOR COMPUTING VEHICLE OPERATING COSTS IN RESPECT TO INTERCHANGES AND ROUTE LOCATION. AN ANALYSIS IS MADE OF THE GENERALIZED DESIGN SITUATION OF (1) INTERCHANGE VS INTERSECTION, AND (2) OVER- VS UNDER-GRADE SEPARATIONS FOR CONTROLLED-ACCESS HIGHWAYS. SELECTED HIGHWAY DESIGN PROBLEMS SUCH AS (1) HIGH VS LOW BRIDGE CROSSING AND (2) EXPRESSWAY VS NONCONTROLLED-ACCESS HIGHWAY ALSO ARE DISCUSSED. /AUTHOR/