On-Road Motor Vehicle Emissions and Fuel Consumption in Urban Driving Conditions

This paper reports on the analysis of on-road vehicle speed, emission, and fuel consumption data collected by four instrumented vehicles. Time-, distance-, and fuel-based average fuel consumption, as well as CO, HC, NO x , and soot emission factors, were derived. The influences of instantaneous vehi...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the Air & Waste Management Association (1995) 2000-04, Vol.50 (4), p.543-554
Main Authors: Tong, H.Y., Hung, W.T., Cheung, C.S.
Format: Article
Language:English
Subjects:
Applied sciences
Atmospheric pollution
Automobile Driving
Exact sciences and technology
Gasoline
Ground, air and sea transportation, marine construction
Humans
Motor Vehicles
Pollution
Pollution sources. Measurement results
Road transportation and traffic
Transports
Urban Population
Vehicle Emissions - analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper reports on the analysis of on-road vehicle speed, emission, and fuel consumption data collected by four instrumented vehicles. Time-, distance-, and fuel-based average fuel consumption, as well as CO, HC, NO x , and soot emission factors, were derived. The influences of instantaneous vehicle speed on emissions and fuel consumption were studied. It was found that the fuel-based emission factors varied much less than the time- and distance-based emission factors as instantaneous speed changed. The trends are similar to the results obtained from laboratory tests. The low driving speed contributed to a significant portion of the total emissions over a trip. Furthermore, the on-road data were analyzed using the modal approach. The four standard driving modes are acceleration, cruising, deceleration, and idling. It was found that the transient driving modes (i.e., acceleration and deceleration) were more polluting than the steady-speed driving modes (i.e., cruising and idling) in terms of g/km and g/ sec. These results indicated that the on-road emission measurement is feasible in deriving vehicle emissions and fuel consumption factors in urban driving conditions.
ISSN:1096-2247
2162-2906
DOI:10.1080/10473289.2000.10464041