Data available from the National Travel Survey are given in the tables which have been placed in the Libraries of the House. The National Travel Survey provides detailed information on personal travel in Great Britain. The sample size was increased in 2002; since 2002 the survey has been based on a random sample of around 8,000 responding private households each year.
Due to small sample sizes at the level of disaggregation requested, data from several survey years have been combined to produce more reliable estimates.
In 2006 a weighting strategy was introduced to the NTS to improve the reliability of the data. This weighting methodology has been applied to data back to 1995 so figures for earlier years are not directly comparable with data for 1995 onwards.