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==== Option 2: Motorway junction Massy Palaiseau ==== 

Take the RER B to ''MassyMassey-Palaiseau''. From there, follow the motoway signs for the A10. There are two options: take a bus from the massive transport lot beside ''Massy-Palaiseau'' station or walk down a motorway ramp nearby.  '''Motorway ramp option''': Go Walk down the ''Avenue Carnot'' along the ''Massy-Palaiseau'' railway, towards the ''autoroute''. After a while there you will see a long stretch of a road with lots of space for cars. Keep going and you will reach a roundabout. If you keep following this road, you will reach a the motorway exit entrance underneath a bridge. Make sure to get a ride to the first ''barrière de péage'' (30+ km) at St-Arnoult or to the Limours-Janvry service station 5 km down the road.

'''Bus ==== Option'''3: Motorway service station Limours-Janvry ====The first petrol service station named on the motorway is called Limours-Janvry and it is situated near 2kms northeast of the village called ''Briis-sous-Forges''. To get there you need to take either RER B to ''Massy-Palaiseau'' . From there take the bus 91.03 to ''Briis-sous-Forges''. It runs about 3 times an hour on weekdays, once an hour on Saturdays, and there are no buses on Sundays. The petrol station is situated a couple of km north from Then walk northeast along the village. To reach it you will need to find small local road ''Route d'Invilliers'', a small local road. Once you are there, make sure your driver takes the right road as the A11 starts not far away. (It's not easy to find the road to the petrol station. no one in this village knows what street he is living in let alone that route you're looking for. They don't even know that there's a petrol station in the area. write the instructions and study the map!! I was lost in this village for couple of hours).