The bridge was commissioned in order to open up a new north - south route across central france and relieve pressure from lorry - drivers and tourists bound for the mediterranean and spain in the saturated rhone valley corridor to the east 修建该桥是为了开创一条穿越法国中部的新南北路线，缓解来自前往地中海和西班牙的卡车司机和旅游者的压力。之前，人流主要通过业已饱和的罗纳河谷通道往东。
