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Scottish Household Survey Travel Diary results

1. Introduction

1.1 This bulletin provides information, collected by the Scottish Household Survey (SHS) in 1999 and 2000, about travel by a random sample of adults (aged 16+) living in private households across Scotland. The topics covered include the means of transport used by different types of people, car occupancy, the purposes for which people travel, the distances that they go, the times of day at which trips start, the duration of journeys, and the days of the week on which people travel. This information is obtained from interviews with one randomly-chosen adult per household in the sample. Each adult in the household has an equal chance of selection for these questions. The information about the person's travel is analysed in conjunction with data collected by questions about the household as a whole, which are answered by either the Highest Income Householder (please see paragraph A3.6 of the "Notes and Definitions", which appear after the tables) or his/her spouse/partner.

1.2 The statistics given here were extracted from the Scottish Executive's SHS database at the end of January 2002, so will not take account of any subsequent revisions to the data (e.g. due to improvements to the imputation process). The results have been weighted to take account of differences in selection probabilities. As with all such surveys, sampling variability and non-response bias may affect the results. It is particularly important to keep this in mind when looking at any results which are based on small numbers of cases in the sample, because they could be affected by quite large percentage sampling errors. Section A7 provides information on the possible scale of sampling errors, and on other reasons why the SHS results may provide only broad indications for some types of people.

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