Abstract
The rapid increase of private passenger vehicles in China has brought about serious problems of CO2 and air pollutant emissions. It has important practical guiding significance to compare the effects of emission reduction policies. In this paper, the LEAP system is used as a tool with classifying the private passenger vehicles according to the heterogeneity of displacement and fuel economy. The different emission reduction policy scenarios are simulated with respective implementation time and characteristic parameters. It is found that the management target of fuel economy is difficult to be realized by existing policies. Even the most stringent emission standards are all implemented, it is also necessary to cooperate with green travel which is mainly about reducing vehicles’ annual travel distance. Although the annual increment of private passenger car is huge, however, there will be a certain downward trend in the discharge of air pollutants. On this basis, it is suggested that a policy goal of maintaining or lowering the emission level can be established. The research suggests that, on the supply side the government should continue to strengthen the management of fuel economy, improve the emission standards, boost the new energy vehicles vigorously, the energy saving vehicles under overall consideration and diesel cars carefully, while on the demand side the green travel should be encouraged at the same time.
Highlights
Private Passenger Vehicle (PPV) refers to a passenger car with private property and less than or equal to 9 seats
In order to evaluate the effects of different CO2 and pollutant control policies, we simulates Improved Fuel Economy (IFE), Increased market penetration of Energy Saving Vehicle (IESV), Increased market penetration of New Energy Vehicle (INEV), Increased market penetration of Diesel (IDSL), Decreased Annual Travel Distance (DATD), and PC (Policy Combination, PC) scenarios
Due to the low CO2 emission factor of diesel vehicles, Table 7 takes IDSL scenario as reference, let other scenarios’ emission minus it. It shows that each improvement scenario can be more efficient in reducing CO2 than IDSL, and the emission reduction effect is ranked as PC>DATD>IFE>INEV>IESV>IDSL>BAU
Summary
Private Passenger Vehicle (PPV) refers to a passenger car with private property and less than or equal to 9 seats. Guo, et al (2014) believe that, due to factors such as vehicle driving performance, fuel quality and road conditions, exhaust pollution has become one of the important sources of air pollution in the city, and the impact on environment is increasing seriously. The above studies do not consider the rapid growth of PPV in recent years as a separate specific research object, and the fuel economy used in pollutant accounting is limited to individual vehicles, or the sample data is small, or non-real-world data. They are impossible to accurately and comprehensively reflect the emission of CO2 and air pollutants from China's PPV. The article overcomes the above shortcomings and uses the advanced LEAP system to explain the effects of China's relevant reduction and control policy scenarios
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