The development of car sharing services in urban areas has shown a diversified trend, mainly divided into two modes: station-based car sharing and free-floating car sharing. Station-based car sharing requires users to pick up and return vehicles at designated stations, which has the advantages of standardized management and easy maintenance, but is relatively limited by the location of stations. Free-floating car sharing allows users to pick up and return vehicles anywhere within a designated area, which is more flexible and convenient, and has become the mainstream mode in many cities. Data show that by 2025, the global car sharing market size has reached 80 billion US dollars, with more than 200 million users worldwide. In major cities such as Beijing, Shanghai, New York, and London, car sharing has become an important supplement to public transportation, providing users with a convenient and cost-effective travel option. The advantages of car sharing services are obvious. First, it improves the utilization rate of vehicles. The average daily utilization rate of private cars is only about 10-15%, while the utilization rate of car sharing vehicles can reach 60-70%, which greatly reduces the waste of vehicle resources. Second, it eases urban traffic congestion. By reducing the number of private cars on the road, car sharing can effectively alleviate traffic jams and improve the efficiency of urban transportation. Third, it is environmentally friendly. Car sharing can reduce the total number of vehicles, thereby reducing exhaust emissions and air pollution. A study shows that each car sharing vehicle can replace 5-10 private cars, reducing carbon emissions by 2-3 tons per year. Fourth, it reduces the economic burden on users. Compared with buying a car, using car sharing services can save costs such as vehicle purchase, maintenance, insurance, and parking, which is more cost-effective for users who do not need to use a car frequently. However, car sharing services also face many challenges in their development. First, operational management problems. The operation of car sharing requires a large number of vehicles, parking spaces, and professional management teams. Problems such as vehicle damage, loss, and irregular parking often occur, which increase the operational costs of car sharing platforms. For example, some users park vehicles in non-designated areas, leading to difficulties in vehicle retrieval and even traffic violations. Second, user experience issues. The quality of car sharing vehicles is uneven, and some vehicles have problems such as insufficient cleaning, malfunctioning equipment, and low fuel/power levels, which affect the user experience. In addition, the peak demand for car sharing is concentrated during commuting hours, leading to insufficient vehicle supply and long waiting times for users. Third, policy and regulatory issues. At present, many cities lack clear policies and regulations for car sharing, such as the management of parking spaces, vehicle safety standards, and liability division in case of accidents. This has led to chaotic operations of some car sharing platforms and potential safety hazards. To promote the healthy development of car sharing services, it is necessary to strengthen the joint efforts of platforms, users, and government departments. For car sharing platforms, they should strengthen operational management, improve the quality of vehicle maintenance and cleaning, and use intelligent technology to optimize vehicle scheduling and parking management. For example, using big data and artificial intelligence to predict user demand, reasonably allocate vehicle resources, and reduce waiting times. At the same time, platforms should strengthen user management, establish a credit evaluation system, and impose penalties on users who damage vehicles or park irregularly. For users, they should abide by the rules of car sharing platforms, take good care of shared vehicles, and park them in designated areas. At the same time, users should provide feedback to the platform in a timely manner when encountering vehicle problems, helping the platform improve service quality. For government departments, they should formulate clear policies and regulations for car sharing, clarify the rights and obligations of platforms and users, and strengthen supervision. This includes providing support for car sharing parking spaces, formulating vehicle safety standards, and establishing a dispute resolution mechanism for car sharing incidents. In the future, with the continuous development of intelligent technology and the improvement of urban transportation systems, car sharing services will become more mature and perfect. It is expected that car sharing will be further integrated with public transportation, autonomous driving, and other technologies, forming a more intelligent and convenient travel ecosystem. At the same time, with the improvement of policies and regulations and the enhancement of user awareness, car sharing will play a more important role in urban transportation, contributing to the construction of greener, more efficient, and more livable cities.
