Author(s)

L. Delia Ragione, M. Rapone & V. Luzar

Abstract

An experimental approach has been applied to define driving cycles characterising driving behaviour in urban traffic. Driving cycles are to be used for the evaluation of exhaust emissions from individual vehicles in traffic. Designed trips have been performed by an instrumented car in a highly congested urban area of Naples, vehicle and engine operating conditions have been recorded . The velocity profile of car is analysed in terms of kinematic sequences described by car between two successive stops. Series of successive sequences having homogenous characteristics have been used to define, by cluster analysis, experimental driving cycles representative of different traffic conditions. Results of analyses are

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