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Modelling how changes in the driving cycle affect fuel consumption and carbon dioxide emission rates: the first stage.

Kirby, Howard

Authors

Howard Kirby



Contributors

Allam Ahmed
Editor

Abstract

This paper describes a simplified procedure for estimating the fuel consumed and carbon dioxide emitted as a result of traffic demand management measures or other policy instruments. The usual methods may be based on second-by-second traffic simulation and the combination of the resulting speed profile with a relationship between fuel consumption rates (or emissions) and speed/acceleration, such as that due to Akelik. This paper shows that mathematical integration simplifies this to an analytic formula, in which the driving cycle becomes characterised by just three coefficients. These combine with the three vehicle-specific parameters of the Akelik model to produce the fuel consumption rate appropriate to that driving cycle and vehicle. The analytic method was validated against official data obtained for a set of new cars tested under two different sets of EC standards for official estimates of the fuel consumption rate for new cars and the technique enhanced in a second stage of the work.

Start Date Nov 6, 2006
End Date Nov 8, 2006
Publication Date 2006
Deposit Date May 28, 2008
Peer Reviewed Peer Reviewed
Pages 294-304
Book Title World Sustainable Development Outlook 2006. Global and Local Resources in Achieving Sustainable Development.
ISBN 907776280
Keywords Transport policies; Effects; Fuel consumption; CO2 emissions; EC Standards; Mathematical modelling;
Public URL http://researchrepository.napier.ac.uk/id/eprint/1896