THE EFFECTS OF CAR SHARING ON TRAVEL BEHAVIOUR: ANALYSIS OF CARSHARING PORTLAND'S FIRST YEAR

Abstract

This article presents a review and analysis of the mobility behavior of CarSharing Portland (CSP) members during its first year of operation. Comprehensive surveys and 1-week trip diaries were administered before individuals joined the organization and at the end of the first year. A periodic need for a vehicle was the primary reason for joining CSP. The effect of membership in CSP on overall vehicle travel was either no change or a slight increase in vehicle miles traveled. However, members reported an increasing frequency of bus trips, walking, and bicycling. In addition, 26% sold their private vehicle and 53% were able to avoid purchasing one. These results are discussed in terms of the psychology of the car sharing experience and how membership in CSP affected travel behavior.