Study on Vehicle Fuel Consumption and Exhaust Emissions Based on a New Viscous Macroscopic Traffic Flow Model
Publication: Journal of Transportation Engineering, Part A: Systems
Volume 149, Issue 2
Abstract
Based on a conserved higher-order traffic flow model (CHO model), we propose a new viscous macroscopic traffic flow model taking into account the diffusion effect in traffic. The model can reasonably smooth the shock wave so that the acceleration is maintained in a reasonable range. To balance the computational efficiency and accuracy, this viscous macroscopic traffic flow model is integrated with the microscopic vehicle fuel consumption and emission models to estimate vehicle fuel consumption and exhaust emissions. The local discontinuous Galerkin (LDG) method is used to solve the viscous model, and the simulation results are inputted into the microscopic models to calculate vehicle fuel consumption and exhaust emissions. Numerical results illustrate that the proposed viscous model is reasonable and that the designed scheme is feasible and effective. Moreover, we provide concrete suggestions for controlling vehicle fuel consumption and exhaust emissions.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This study was jointly supported by grants from the National Natural Science Foundation of China (72021002, 71890973, 72101185, 11972121, and 71901163).
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Information
Published In
Journal of Transportation Engineering, Part A: Systems
Volume 149 • Issue 2 • February 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Apr 29, 2022
Accepted: Sep 26, 2022
Published online: Nov 23, 2022
Published in print: Feb 1, 2023
Discussion open until: Apr 23, 2023
ASCE Technical Topics:
- Air pollution
- Emissions
- Energy consumption
- Energy efficiency
- Energy engineering
- Engineering fundamentals
- Environmental engineering
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Highway transportation
- Hydrologic engineering
- Infrastructure
- Model accuracy
- Models (by type)
- Pollution
- Traffic engineering
- Traffic flow
- Traffic management
- Traffic models
- Transportation engineering
- Vehicles
- Viscous flow
- Water and water resources
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Cited by
- Zhiyang Lin, S. C. Wong, Xiaoning Zhang, Peng Zhang, Higher-Order Traffic Flow Model Extended to Road Networks, Journal of Transportation Engineering, Part A: Systems, 10.1061/JTEPBS.TEENG-7556, 149, 4, (2023).