- Type of survey: continuous on a quarterly and annual basis.
- Population scope: all railway companies, both public and private, transporting goods or passengers within the national territory. Companies whose only activity is the provision of passenger transport services by subway, tram and/or light rail are excluded.
- Geographical scope: the entire national territory.
- Reference period: the calendar quarter and year.
- Collection method: completion of the questionnaire by the sample units.
Methodological documents , questionnaires , classifications ...