Samenvatting
In order to present - results of the following investigation in as interesting a manner as possible, the book is divided into two parts, in the effort to keep the more qualitative data separate from quantitative analysis. Part i deals meanly with the qualitive aspects of the study, verbatim reports of interviews with motorists and so on Part 2 is meanly concerned with areas of statistical information, sampling methods, scoring evaluation of data, etc. and is directed mainly to persons familiar with and interested in, the less narrative areas namely figures and tables correlations and frequencies.