The Consequences of Carsharing Systems on Vehicles Ownership In Urban Cities

In 2001, there were more than approximately 92% of United States households had at least one vehicle and 60% owned two or more vehicles (Shaheen et al., 2005). This usage of the automobile is a major impact of air pollution and noise in the urban cities of the U.S. (Katzev 2003). Urban communities face serious environmental, healthy, and transportation problems as the extreme growth of transit movement around streets. It contributes about 45% of the nitrogen oxides and 70% of the carbon monoxide in U.S urban cities (Katzev, 2003). In Portland, as another example, 35% of the total energy consumption in 2010 was generated by road transit and about 30% of CO 2 emissions (Baptista et al., 2014). With the increasing of fuel costs and vehicle ownership, people are looking for alternatives to ownership of vehicle cars (Shaheen et al., 2006) that have positive impacts or no negative impacts at least. The main goal of car sharing systems is to provide an easy access for individuals to own a privet car without any responsibilities and costs of ownership .Consequently, it reduces the volume of traffics in urban cities, then reduce air pollution.