Current composition
| Institut Cartogràfic i Geològic de Catalunya: 5 members |
| Provincial Council of Barcelona |
| Provincial Council of Girona |
| Provincial Council of Lleida |
| Provincial Council of Tarragona |
| City Council of Barcelona |
| City Council of Cerdanyola del Vallès |
| City Council of el Prat de Llobregat |
| City Council of Girona |
| City Council of Lleida |
| City Council of Lloret de Mar |
| City Council of Mataró |
| City Council of Sabadell |
| City Council of Sant Boi de Llobregat |
| City Council of Sant Cugat del Vallès |
| Metropolitan Area of Barcelona |
| Statistical Institute of Catalonia |
| General Directorate for Land Mobility Infrastructures |