The purpose of this study was to create a database of seven day household activity diaries on which to base models of travel decision making. Variables For each household: details of household structure. For every household member: personal details (age, sex, employment, etc.) A diary giving details of all activities undertaken (both in and out of home) over a seven day period. Each activity is described by its start time, its location, and a description of the activity. Travel is included as an activity characterised by start time and mode.