The criterion used to classify a response into the classification is the main means of travel taken by the respondent on the collection date.
Main means of travel to work is a flat classification with 15 categories – excluding residual categories.
The residual categories are defined in Glossary and references.
The full classification is available in Download of classification.
A response of worked at home should be imputed if there is a response of work at home in the “Where do you work?” question.
A codefile can be used to code responses. A codefile is a comprehensive list of probable survey responses and the classification categories to which they are coded. The codefile for main means of travel to work contains the classification categories plus some additional unique responses.