Spatiotemporal distribution of traffic emission based on wind tunnel experiment and computational fluid dynamics (CFD) simulation

Sun, Daniel; Shi, Xue-Qing; Zhang, Ying; Zhang, Lihui

doi:10.1016/j.jclepro.2020.124495

Cited by 31 publications

(5 citation statements)

References 68 publications

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“…The transportation sector accounted for approximately 20% of global greenhouse gas emissions in 2017 without considering international aviation and maritime emissions (EEA, 2018). From the most significant pollutants emitted by on-road vehicles (EEA, 2018), CO (Carbon Monoxide), VOCs (Volatile Organic Compound), NOx (Nitrogen Oxides) and PM (Particle Matter) have been regulated in legislation, as well as FC (Floro Carbons) and CH 4 (Methane), which have a significant impact on Ozone depletion and greenhouse gases emissions, have been selected for this traffic emission comparison (Sun et al, 2020;Sun et al, 2021a;Sun et al, 2021b). A particular type of vehicle used for the carriage of passengers with no more than eight seats in addition to the driver's seat and vehicles used for the carriage of goods with a maximum weight not exceeding 3.5 tons were selected due to the heavy-duty vehicle restrictions in both CBDs.…”

Section: Results and Comparisonsmentioning

confidence: 99%

Urban traffic-parking system dynamics model with macroscopic properties: a comparative study between Shanghai and Zurich

Mesfin,

Li,

Sun

et al. 2024

Humanit Soc Sci Commun

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Analyzing the dynamics of parking traffic can better represent the real dynamic states of road networks, thereby allowing for a deeper analysis of the parking system’s impact. This paper comparatively investigates the impact of parking policies on two traffic networks with different infrastructure, socio-economic, and policy characteristics. Parking space, average parking duration, and parking fee policies were analyzed as a function of cruising distances and cruising time with indirect effects on traffic emissions. Empirically, the system dynamics model application is tested and validated with the macroscopic data from two central business districts (CBDs) in Shanghai (Xujiahui area) and Zurich (Bahnhofstrasse area). Results showed Bahnhofstrasse CBD is more sensitive against the policy shifts with relatively higher elasticity and indicated greater responsiveness in aggregating traffic emissions when compared with Xujiahui CBD. The findings of this study may provide an overall framework to empirically assess the performance of different traffic conditions and strategies on urban parking systems.

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Section: Results and Comparisonsmentioning

confidence: 99%

Urban traffic-parking system dynamics model with macroscopic properties: a comparative study between Shanghai and Zurich

Mesfin,

Li,

Sun

et al. 2024

Humanit Soc Sci Commun

Self Cite

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“…As the data are not obtained from the same physical domain that is being modeled, these results do not reflect the actual behavior of pollutants in that domain. [3][4][5][6][7][8][9][10][11][12][13][14][15][16] Wearable sensors…”

Section: Validation Methodsmentioning

confidence: 99%

Computational Fluid Dynamics Models to Estimate Pedestrian Exposure to Traffic-Related Air Pollution: A Review

Rodriguez-Camarena,

Gonzalez-Olivardia

2023

Ecas 2023

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“…According to the law of conservation of mass: within a fixed fluid region, the change rate of the mass of continuous fluid is equal to the net flux of the fluid on the surface of the region, then we can get the continuity equation [16]:…”

Section: Governing Equationmentioning

confidence: 99%

Numerical Simulation of the Hydraulic Performance of Spillway of Goushuipo Reservoir

Zhao¹,

Zhao²,

Li³

et al. 2022

IJHT

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Spillway is an important flood control facility for hydraulic architectures, whether the design and layout of the spillway are reasonable or not can directly affect the safety of hydraulic architectures and the investment of the entire project. To discuss the rationality of the designed reinforcement scheme for spillway of Goushuipo Reservoir in China, this paper employed the Computational Fluid Dynamics (CFD) methods, Volume of Fluid (VOF) model and Re-Normalization Group (RNG) model to simulate the water surface line of spillway under different verified flood standard conditions based on the measured data of water surface line of spillway of the Goushuipo Reservoir. By comparing with the test values, it’s verified that the simulation results are of high accuracy; then on this basis, this paper analyzed the relationship between water level and water flow of spillway under different conditions and other hydraulic performance such as the water flow state. Moreover, according to the simulation results, this paper analyzed the problems with the original design scheme and further proposed an optimized scheme: the two-step water-drop energy dissipation scheme for the Goushuipo Reservoir, and performed numerical simulation on the optimized scheme. At last, the simulation results proved the rationality of the optimized scheme, and the research findings of this paper provide useful references for the reinforcement project of the target reservoir in the future.

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Spatiotemporal distribution of traffic emission based on wind tunnel experiment and computational fluid dynamics (CFD) simulation

Cited by 31 publications

References 68 publications

Urban traffic-parking system dynamics model with macroscopic properties: a comparative study between Shanghai and Zurich

Urban traffic-parking system dynamics model with macroscopic properties: a comparative study between Shanghai and Zurich

Computational Fluid Dynamics Models to Estimate Pedestrian Exposure to Traffic-Related Air Pollution: A Review

Numerical Simulation of the Hydraulic Performance of Spillway of Goushuipo Reservoir

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