- Type of survey: continuous on a monthly basis.
- Population scope: companies involved in passenger transport irrespective of their main activity.
- Geographical scope: the entire national territory.
- Reference period of the results: month
- Reference period of the information: month
- Sample size: approximately 1,500 companies
- Type of sampling: stratified random sampling of companies, by AACC, number of employees and type of transport.
- Collection method: completion of the questionnaire by the respondent using one of the following means: Internet (IRIA system), e-mail, fax, telephone or postal mail.
Methodological documents , questionnaires , classifications ...