Lines J1 and J2 become line 427
New services and simplified routes for your new line 427
- A single route in both directions for a simplified connection between the RER A at Boissy-Saint-Léger station and the "Les Graviers" stop.
- The maintenance of the service to the Guillaume Budé high school in Limeil-Brévannes.
- + bus with a passage every 7 minutes in the morning and evening and every 15 minutes during the day.
Map of line 427