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Low Emissions and Delay Optimization for an Isolated Signalized Intersection Based on Vehicular Trajectories.

Lin C, Gong B, Qu X - PLoS ONE (2015)

Bottom Line: This paper first defines vehicular trajectories and the calculation of vehicular emissions based on VSP.Finally, one typical intersection of Changchun is selected to verify the model proposed in this paper; its performance efficiency is also compared using simulations in VISSIM.The results of this study show that the proposed model can significantly reduce vehicle delay and traffic emissions simultaneously.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Automobile Dynamic Simulation, Jilin University, Changchun, 130022, China.

ABSTRACT
A traditional traffic signal control system is established based on vehicular delay, queue length, saturation and other indicators. However, due to the increasing severity of urban environmental pollution issues and the development of a resource-saving and environmentally friendly social philosophy, the development of low-carbon and energy-efficient urban transport is required. This paper first defines vehicular trajectories and the calculation of vehicular emissions based on VSP. Next, a regression analysis method is used to quantify the relationship between vehicular emissions and delay, and a traffic signal control model is established to reduce emissions and delay using the enumeration method combined with saturation constraints. Finally, one typical intersection of Changchun is selected to verify the model proposed in this paper; its performance efficiency is also compared using simulations in VISSIM. The results of this study show that the proposed model can significantly reduce vehicle delay and traffic emissions simultaneously.

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Contrast of related indices before and after optimization.
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pone.0146018.g008: Contrast of related indices before and after optimization.

Mentions: Using VISSIM to simulate the intersection before and after changing the traffic signals, the effect of optimizing the delay and emissions is determined. The delay and emissions are compared based on the simulations before and after changing the signal control; these results are shown in Tables 2 and 3 and Fig 8.


Low Emissions and Delay Optimization for an Isolated Signalized Intersection Based on Vehicular Trajectories.

Lin C, Gong B, Qu X - PLoS ONE (2015)

Contrast of related indices before and after optimization.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4697823&req=5

pone.0146018.g008: Contrast of related indices before and after optimization.
Mentions: Using VISSIM to simulate the intersection before and after changing the traffic signals, the effect of optimizing the delay and emissions is determined. The delay and emissions are compared based on the simulations before and after changing the signal control; these results are shown in Tables 2 and 3 and Fig 8.

Bottom Line: This paper first defines vehicular trajectories and the calculation of vehicular emissions based on VSP.Finally, one typical intersection of Changchun is selected to verify the model proposed in this paper; its performance efficiency is also compared using simulations in VISSIM.The results of this study show that the proposed model can significantly reduce vehicle delay and traffic emissions simultaneously.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Automobile Dynamic Simulation, Jilin University, Changchun, 130022, China.

ABSTRACT
A traditional traffic signal control system is established based on vehicular delay, queue length, saturation and other indicators. However, due to the increasing severity of urban environmental pollution issues and the development of a resource-saving and environmentally friendly social philosophy, the development of low-carbon and energy-efficient urban transport is required. This paper first defines vehicular trajectories and the calculation of vehicular emissions based on VSP. Next, a regression analysis method is used to quantify the relationship between vehicular emissions and delay, and a traffic signal control model is established to reduce emissions and delay using the enumeration method combined with saturation constraints. Finally, one typical intersection of Changchun is selected to verify the model proposed in this paper; its performance efficiency is also compared using simulations in VISSIM. The results of this study show that the proposed model can significantly reduce vehicle delay and traffic emissions simultaneously.

Show MeSH
Related in: MedlinePlus