How to reach us

How to reach us by train and bus

• In order to determine which is the best route to IPhT, check the web site of public transportations in the Paris area. Select the English language. For the arrival point, click on Stop or station, then fill in Orme des Merisiers, town Saint-Aubin.
• From Paris or the airport, take the train RER B (schedule) direction Saint-Remy-les-Chevreuse. Then, there are several possibilities:
  
  1. Exit at Le Guichet (approx. 35 minutes from Paris, 1h15 from Charles-de-Gaulle) and take the pedestrian underpass at the front of the train. Turn right after the cafe and cross the street. A pedestrian way on the left (marked "Parc de Stationnement de Corbeville") leads to the bus station. Free shuttles run from the left side of the street (opposite the bus station) every 15 minutes from 8.00 am to 9.45am and at 12.55 pm. They reach Orme des Merisiers 7 minutes later.
  2. Exit at Massy-Palaiseau. Cross the footbridge located near the rear of the train. At the bottom of the stairs, continue for 30 meters until you reach bus stop 91-06. This bus is free with the weekly or monthly pass "Navigo zones 4-5"; otherwise, tickets can be purchased on the bus; if you have subway tickets for Paris you can also use those. Exit the bus at Orme des Merisiers (20 minutes from Massy-Palaiseau). Timetables can be found on the website of public transportation in Paris area (Departure point: Gare de Massy Palaiseau, Arrival point: Orme des Merisiers)
  3. Exit at Le Guichet. Take the pedestrian underpass at the front of the train, turn right after the cafe and cross the street. A pedestrian way on the left (marked "Parc de Stationnement de Corbeville") leads to the bus station. Take the bus 269-02 (free with a weekly or monthly pass "Navigo zone 5"; otherwise, tickets can be purchased on the bus; if you have subway tickets for Paris on which it is written BUS you can also use those) to Orme des Merisiers (approx. 15 minutes). This bus is very rare in the morning after 10 AM (10.10, 11.12, 11.45), so if you are scheduled to give a seminar at 11 AM and arrive in Le Guichet after 10.10 AM, take a taxi or call a friend from our lab to give you a lift. Timetables can be found on the website of public transportation in Paris area (Departure point: Le Guichet, town: Orsay; Arrival point: Orme des Merisiers).
  4. Sometimes taxis are also available in Le Guichet. They can cost around 15-20 euros. If there are no taxis in Le Guichet, you can order one by phone. Two of the larger companies you can find in the yellow pages are Taxis D'Orsay (01 69 28 82 67) and Taxis Les Ulis (01 69 07 48 88). Two warnings: we got those numbers ourselves from the yellow pages, and have no other information about these companies. Also, the dispatch may not speak English.

• Exit the bus at Orme des Merisiers, walk back a few steps and cross the road. Enter Orme des Merisiers. and follow the road. IPhT is located in the only complex of buildings on the right side of the road (approx. 8 minutes walk from the bus stop).