As of today, there are 3 suites rapides in service in France. Their purpose is to fix and renovate the components of the rail track and they must do so quickly so as to not hinder commercial train traffic too long. A race against the clock that can take place both day and night!
Along with developing and modernizing the network, it is necessary to renovate aging and much used infrastructures. To streamline the renovation process of the rail system in the Paris area, a Suite Rapide was considered necessary.