This Paper describes the National Travel Survey in terms of it's objectives and strategies. It discusses the concepts of interregional travel patterns and the need for consistent and statistically valid data, the parameters influencing travel particularly the social, economic and personal choices, seasonal variances, sampling details and the operation of the survey. Much of the information has never been systematically collected before, and none of it has been collected to the comprehensive degree applying in the NTS. As a result, it is expected that the results will give new insights into the requirements for future transport systems, policies and philosophies.
- Timetables as a Source of Statistical Data