Modeling of Urban Road Vehicle Exhaust Emission Laws and Comprehensive Analysis Under Accident Scenarios

Yuchen Xu; Jiaxiang Ge; Yaoxuan Guo

doi:10.63313/AERpc.9052

Authors

Yuchen Xu College of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua, China Author
Jiaxiang Ge School of Computer Science and Technology, Zhejiang Normal University, Jinhua, China Author
Yaoxuan Guo School of Computer Science and Technology, Zhejiang Normal University, Jinhua, China Author

DOI:

https://doi.org/10.63313/AERpc.9052

Keywords:

Vehicle Exhaust Emission, Speed-Emission Model, Extreme Value Analysis, Driving Behavior, Traffic Accident

Abstract

With the rapid growth of motor vehicle ownership, vehicle exhaust has become a major source of urban air pollution. This study constructs a mathematical modeling system for carbon monoxide (CO) and hydrocarbon (HC) emissions based on real road observation data, focusing on speed-emission relationships, optimal driving speed, driving behavior impacts, and accident-induced idling emissions. Results show the "emission rate-speed" model outperforms "mileage emission-speed" (CO emission rate R²≈0.994); HC’s optimal speed is ~25 mile/h (practical), while CO’s optimal speed exceeds real limits; variable-speed driving increases instantaneous emission fluctuations; 200 vehicles idling 30 minutes emit ~1754g CO and ~189g HC. This study provides a scientific basis for traffic emission management.

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