The Study on the Relationship Between Shared Cars and Air Quality in Cities based on Changes in Private Car Ownership

Abstract

With the rapid growth of the scale of shared cars in China, it has a great positive external effect on people's daily lives, and this result is especially reflected in the air quality index.Within cities, a very important factor affecting air quality is the emission of vehicle exhaust. The size of the displacement and the number of vehicles in transit directly affect the amount of exhaust emissions. This paper conducts research based on this principle, and finally concludes: 1.The increase in the scale of shared cars has solved the car purchase needs of some people. 2.The increase in the scale of shared cars, especially electric shared cars,can solve the problem of air pollution within the city to a certain extent.This study has important reference significance for the development and promotion of shared cars by governments and related enterprises,as well as the evaluation of the environmental protection efficiency of shared cars.