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Urban network noise control based on road grade optimization considering comprehensive traffic environment benefit.
Haibo Wang1, Zhipeng Wu1, Zhaolang Wu1
1School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
Journal of Environmental Management
|June 15, 2024
Summary
This study introduces a traffic noise control model optimizing road networks for environmental benefits. Prioritizing noise reduction can decrease sound pressure significantly, though it may increase travel time.
Area of Science:
- Environmental Engineering
- Transportation Engineering
- Urban Planning
Background:
- Traffic noise pollution is a significant environmental concern impacting urban quality of life.
- Optimizing road networks is crucial for balancing traffic efficiency and environmental impact.
Purpose of the Study:
- To propose a double-decision optimization model for traffic noise control at the road network planning level.
- To investigate the trade-offs between traffic noise reduction and travel time.
Main Methods:
- Developed a double-decision optimization model with upper-level benefit maximization and lower-level traffic flow assignment.
- Utilized a stochastic user-equilibrium model for traffic flow assignment.
- Incorporated road grade optimization and arterial road prioritization.
Main Results:
- A low environmental requirement (weighting 1.1) reduced sound pressure by 9.23% with a 4.01% travel time increase.
- A high environmental requirement (weighting 0.2) reduced sound pressure by 26.8% but increased travel time by 30.9%.
- Road grade degradation and arterial road optimization were key strategies; speed impacts noise more than volume.
Conclusions:
- The proposed model offers technical support for proactive traffic noise pollution governance.
- Optimizing road networks can significantly improve traffic sound environment quality.
- Balancing environmental demands with traffic efficiency is achievable through strategic network planning.
Keywords:
Double-decision optimizationNoise controlRoad network planningTraffic environmentUrban acoustics environmentMore Related Videos
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