SUMMARY OF USER BENEFITS ON URBAN ARTERIALS AND THE INTERSTATE FREEWAY IN THE SEATTLE METROPOLITAN AREA

A BEFORE AND AFTER STUDY WAS CONDUCTED IN 1962 AND 1968, RESPECTIVELY, ON HIGHWAY USER BENEFITS RESULTING FROM THE CONSTRUCTION AND OPERATION OF AN INTERSTATE FREEWAY IN AN URBAN AREA. TRAVEL TIME AND FUEL CONSUMPTION STUDIES WERE MADE AS WELL AS AN ACCIDENT REDUCTION BENEFIT IN GREATER DETAIL. METHODS FOR PREDICTING ACCIDENT COSTS AND PROPERTY DAMAGE WERE DEVELOPED AND TESTED. ALSO, A USER BENEFIT EVALUATION MODEL WAS DEVELOPED FOR DESCRIBING BENEFITS EVALUATED IN A MULTI-VEHICLE USER BENEFIT ANALYSIS.