Effect of Driving Behaviors on Emissions in Eco-driving at Intersections

In order to mitigate vehicle emissions, the concept of eco-driving at intersections has been introduced to China recently. However, systematic studies and experiments regarding emissions effects of eco-driving at intersections have been rare. This paper is intended to evaluate effects of driving behaviors in the eco-driving, in reference to the deceleration at the upstream, idling or turning off engine at the stop line, acceleration at the downstream, on emissions. Instantaneous vehicle emission data from different driving behaviors emulating various eco-driving scenarios are collected through field tests. After analyses of emission characteristics of different driving behaviors at intersections, driving behavior models are developed for deceleration at the upstream and acceleration at the downstream links, using the emission modeling approach that incorporates the concept of Vehicle Specific Power (VSP). In the application to the more comprehensive emission data collected in Beijing, vehicle emission regularities and the emission-least eco-driving behaviors are identified. It is demonstrated that total emissions of CO2, CO, NOx, and HC decrease with the increase of the decelerating distance. Turning off the engine generates the least CO2, CO, NOx, and HC at the stop line. Besides, at the downstream, total emissions of CO and NOx decrease with the increase of the accelerating time. However, total emissions of CO2 and HC are fluctuating and the slowest acceleration does not produce the least CO2 and HC. 

• Supplemental Notes:
  • This paper was sponsored by TRB committee ADC20 Transportation and Air Quality.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Tang, Peijia
  • Yu, Lei
  • Song, Guohua
• 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: 21p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Deceleration; Driver performance; Ecodriving; Engine idling; Exhaust gases; Sustainable transportation
• Geographic Terms: Beijing (China)
• Subject Areas: Environment; Highways; Operations and Traffic Management; I15: Environment;

Filing Info

• Accession Number: 01520123
• Record Type: Publication
• Report/Paper Numbers: 14-0648
• Files: TRIS, TRB, ATRI
• Created Date: Mar 26 2014 10:13AM