What is the difference between CAFT and the French National Transit survey?
The French part of the CAFT survey is embedded into the so-called French National ‘Transit’ survey, which aims both at covering all traffic flows crossing mountainous borders of France and at covering as much as possible of traffic flows transiting France. As a consequence, in addition to Alpine passes at the border between France and Italy, the interviews also take place at the two main passes through the Pyrenean border with Spain, as well as at Bâle at the Swiss border in order to capture a significant part of the North-West/South-East transit flows not crossing the Alps or Pyrenees. At these additional survey points there is indeed more traffic concentrated than at the French Alpine crossings.
