The hierarchical classification of the Activity Classification for the Time Use Survey (ACTUS) has four levels. Level one of the classification has four categories. Level two has 11 categories, level three has 71 categories, and level four has 126 categories – excluding residual categories.
The residual categories are defined in Glossary and references.
You can download the full classification from the 'Available files' section.
Respondents are asked to provide details of activities in regular five-minute time periods. For each time period there is a single primary activity and the possibility of multiple secondary activities.
The primary or main activity is the activity the respondent writes down first (in the first column of the diary).
Secondary or simultaneous activities are any activities done at the same time as a primary activity. For example, a respondent may write that they are eating at the same time they are minding their children, socialising, and watching television. Up to three secondary activities are coded.
The standard output variable categories for activity are an aggregation of the classification categories. With the collection of respondents' primary and secondary activities, the standard categories can be output in two main ways: