the bridge forms the last link of the a75 autoroute, (la méridienne) from clermont-ferrand to béziers. the a75, with the a10 and a71, provides a continuous high-speed route south from paris through clermont-ferrand to the languedoc region and through to spain, considerably reducing the cost of vehicle traffic traveling along this route. many tourists heading to southern france and spain follow this route because it is direct and without tolls for the 340 km between clermont-ferrand and pézenas, except for the bridge itself.