Comparative Study of VSP Binning Methods for Estimating Fuel Consumption of LDVS on Urban Roads
The micro-scale fuel consumption model is a tool commonly used to evaluate the effect of traffic flow conditions on vehicle fuel consumptions, which is an essential step in developing traffic management strategies for saving fuels. In developing any micro-scale fuel consumption model, the Vehicle Specific Power (VSP) binning method has been widely adopted in recent years as a fundamental approach. Existing studies have shown that the high distribution frequency when VSP=0 contributes to high fuel consumptions, so a question quickly emerged about whether VSP=0 should be designed as an independent VSP bin in the VSP binning method. This paper strives to compare different VSP binning methods for Light-Duty Vehicles (LDVs) on urban roads in Beijing in terms of their effects on the estimation of fuel consumptions. After collecting and processing field vehicle activity data and fuel consumption data, three VSP binning methods are proposed for the study. Then, total fuel consumptions and fuel consumption factors are calculated by using the proposed VSP binning methods as well as the second-by-second and average travel speed data. Finally, the estimation accuracy of total fuel consumptions and fuel consumption factors based on the three different VSP binning methods are compared for LDVs on urban roads. The study proves that an independent VSP bin at VSP=0 is indeed necessary, which can improve the estimation accuracy on both total fuel consumptions and fuel consumption factors.
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Supplemental Notes:
- This paper was sponsored by TRB committee ADC20 Transportation and Air Quality. Alternate title: Comparative Study of Vehicle-Specific Power Binning Methods for Estimating Fuel Consumption of Light-Duty Vehicles on Urban Roads.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Zhao, Qi
- Song, Guohua
- Yu, Lei
- Wu, Zeqing
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Conference:
- Transportation Research Board 93rd Annual Meeting
- Location: Washington DC
- Date: 2014-1-12 to 2014-1-16
- Date: 2014
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 15p
- Monograph Title: TRB 93rd Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Alternatives analysis; Fuel consumption; Highway traffic control; Speed data; Traffic flow; Urban highways
- Uncontrolled Terms: Light duty vehicles; Vehicle specific power
- Geographic Terms: Beijing (China)
- Subject Areas: Energy; Highways; Operations and Traffic Management; Vehicles and Equipment; I72: Traffic and Transport Planning; I96: Vehicle Operating Costs;
Filing Info
- Accession Number: 01515085
- Record Type: Publication
- Report/Paper Numbers: 14-1963
- Files: TRIS, TRB, ATRI
- Created Date: Feb 21 2014 3:16PM