Samenvatting
The purpose of this study was to obtain data necessary to develop a composite average driving pattern that would serve as a basis for designing new test cycles for vehicle emission control devices. Automatic information recording devices - tachographs - were installed in private cars. Data records of this instruments, as well as information obtained from log books have been reduced and analysed. This document presents a description of the techniques used to obtain and analysis the data and a discussion of the study results.