Keeping people on track is RATP's raison d'etre

摘要

In Paris, RATP Group's autonomous Metro Line 1 is carrying 750,000 people a day across the city. Ben Spencer is invited into the control room to take a look at how the system works. Paris is visited by millions of tourists each year, keen to see for themselves stunning attractions such as the Eiffel Tower, Arc de Triomphe, Notre-Dame, the Louvre, the Seine and all the rest. But while the best-known sites of the City of Light tend to be on the surface, there is a lot going on below those iconic grand boulevards.