Concept selected: Regional inter-city rail transport
All services responding to a demand for generally daily transport by means of single-class trains and notwithstanding exceptions with routes comprising between 75 km. and 300 km. that allow return journeys to a city the same day, and the trains intended to intercommunicate different towns, ensuring a link with long-distance trains are defined as regional.
Annual Wage Structure Survey. Methodology
(enlaces al Inventario de Operaciones Estadísticas)