Saclay site

CEA staff buses

Some forty regular bus routes provide transport for CEA staff to and from the various “Portes” on the edge of central Paris, as well as most local areas in the southern suburbs in the Ile-de-France.

Staff are dropped at the N306 roundabout at 8.30am (Eastern entrance) or inside the CEA centre at the bus station where shuttles provide a link with the INSTN (5 min travel time).

In the evening, these buses can only be used if courses finish at 4.30pm.

Timetables and routes for these buses can be obtained from the teaching assistants.

Specific formalities to access the bus station

Students can only travel to the Saclay centre with a prior request for authorisation. They must therefore see the teaching assistant to get a pass made for use in the shuttles travelling through the centre to the bus station.The INSTN student card, or the pass (for students not enrolled with the INSTN), only gives access to the bus station at the Saclay centre for the duration of the academic year. In no way do they constitute access badges for the centre.

This card is strictly personal and must be systematically shown upon request by the security services. If it is lost or stolen, please alert the teaching assistant at the earliest opportunity.

To deal with all security checks, students must have their student card on them as well as a form of identity (national ID card or passport).

CEA shuttles

  • Le Guichet RER station - INSTN
    • Morning: 8.00am – 9.45am every 15 min (INSTN bus stop).
    • Evening: 5.30pm – 7.30pm every 30 min (bus stop at N306 roundabout located 200m from the INSTN).
  • INSTN to Saclay centre bus station
    • Morning: 4 departures subject to numbers arriving, from 8.30am to 9.15am.
    • Evening: 1 departure at 4.55pm,  2 departures at 5.00pm.

Public transport

Paris to Saclay

At either Châtelet or Denfert-Rochereau RER metro stations, take the RER B to "Saint-Rémy-lès-Chevreuse" and get off at "Le Guichet" station (35 min travel time).

Next, take the No. 9 bus and get off at the “CEA Saclay” bus-stop on the N306, 200 metres from the INSTN.

On average, the bus runs every 15 min for departures:

  • from “Le Guichet” station from 7.30am to 10.00am,
  • from the CEA (N306) between 4.30pm and 8.00pm.

The service runs every 20 mins during off-peak hours. Information from CAPS (Communauté d’agglomération du plateau de Saclay).

Massy-Palaiseau station to Saclay

At Massy-Palaiseau station (RER B and C), take bus No. 91-06 (approx. 20 min travel time) and get off at the “CEA Porte 306” bus-stop, 200 metres from the INSTN. Buses run every 5-10 min at peak times.

Important: there is no service to this bus stop at certain times. Please consult bus line 91-06 timetable:

Cadarache site

CEA staff buses

Some thirty regular bus routes provide transport for CEA staff to and from most local areas in the region (32 cities and villages).

Staff are dropped at 8.00am at the bus station, where shuttles link with the INSTN (10 min travel time).

Timetables and routes for these buses can be obtained from the teaching assistants.

Timetable and routes of bus station / INSTN shuttles

  • Morning:
    • 8.00am CEA bus station (take coach A) => INSTN
    • 8.10am Le Hameau residence => INSTN (bus stop in front of CEA reception, exit side)
  • Midday:
    • 11.40am (outward): INSTN => Restaurant 1 at the CEA centre
    • 12.40pm (return): Restaurant 1 (take coach C) => INSTN
  • Evening:
    • 4.15am INSTN => Le Hameau1 residence
    • INSTN => Bus station (terminus) 2

1 Please alert the bus driver if you get off at this bus stop.
2 CEA staff buses wait for you at the bus station for the destination of your choice: departures at 4.30pm

Occasional shuttles run between the CEA centre and the INSTN, from 8.30am to 11.15am and from 1.30pm to 3.45pm. If required, contact the reservation centre: tel. +33 4 42 25 33 33

Regional buses

  • Line LER 27: Marseille => Gréoux-les-Bains => Castellane
  • Line No.150: Saint-Paul-Lez Durance => Aix-en-Provence
  • Line No.151: Saint-Paul-Lez Durance => Jouques => Peyrolles => Meyrargues => Pertuis

The bus stop for these 3 lines is Saint-Paul-lez-Durance - Hameau CEA. Information: regional buses