Traffic gauges are the systems for measuring the intensity and counting the volume of vehicles passing through the roads where they are installed. In this way, the IMD can be obtained, the average daily intensity of vehicles passing through a certain point on a road. The gauging corresponding to the road network of the Government of Catalonia is managed by the Road Facilities and Equipment Service of the General Directorate of Mobility Infrastructures. The purpose of obtaining and publishing this data is to raise awareness of the demand for mobility on the roads, that is, the use that is being made of these infrastructures.
Source: Government of Catalonia