City-level estimation of vehicle CO₂ emission factors regarding driving behaviors: The case of Tianjin, China.

ABSTRACT: The estimation of CO₂ emission factors (EFs) is a key step in calculating automobile CO₂ emissions. However, city-level research on the integrated estimation of vehicle CO₂ EFs under real conditions is insufficient. To enrich the research methods of city-level vehicle CO₂ EFs, this paper constructs a vehicle-road-driver three-layer regression model and estimates vehicle CO₂ EFs empirical parameters for Tianjin. The results show that the influences of vehicle CO₂ EFs can be ranked as follows: engine displacement level (0.740) > total mileage (0.336) > driving habit after the start (-0.072) > vehicle size (0.064). The average empirical parameter of Tianjin's vehicle CO₂ EFs is 195.38 g/km. This study can provide a m

SUBMITTER: Ye H 

PROVIDER: S-EPMC11760841 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature