Official LSCE page for visitors: Coming to LSCE (French and some English)

There are several ways to get to LSCE (from Paris) and travel around the Plateau de Saclay, but the information may not be easy to locate, even if you speak French (several web sites and tweet channels,…)

LSCE bus stop: L'Orme des Merisiers bus stop on Google maps

• Paris-Saclay transportation information (French)
  • Lines, timetables, ... (French)

• Full transportation network map
  This is a very big and detailed map, don't even try to print it! Use the zoom in you favorite pdf reader

• Main bus information website:
  • French
  • English (still no English content as of mid-February 2025…)

• Twitter accounts:
  • Bus Paris Saclay (@Saclay_IDFM) (French)
  • Paris-Saclay Mobilités (@MobParisSaclay) (French)

• Transilien web site: planning, and real-time information
  • Next bus from LSCE to RER B Le Guichet (reliability not guaranteed)
  • Next options from LSCE to Cité Universitaire (reliability not guaranteed)
  • API reference (if somebody wants to understand how the underlying data can be used…)

• Ile de France Mobilités web site: planning, maps, timetables

• RATP resources:
  • Main website: English / French
  • Bonjour RATP website
  • Traffic information
  • Maps
  • Smartphone apps (Bonjour RATP): Android / iOS

• LSCE bus stop: L'Orme des Merisiers bus stop on Google maps

• Full transportation network map
  This is a very big and detailed map, don't even try to print it! Use the zoom in you favorite pdf reader

• Aéroport Ch de Gaulle 2 ⇔ Paris ⇔ Le Guichet ⇔ Saint Rémy lès-Chevreuses
• RER B map
• RER B traffic information (mostly in French…)
• Next trains (real time) at Le Guichet station:
  • To Aéroport Ch. de Gaulle • Mitry – Claye
  • To St-Rémy-lès-Chevreuse
• Twitter account: RER B (@RERB) (French)
• Blog: Ma Ligne B

Use the link below for some information on the SNCF-operated part of the RER B, and all the other lines you have never heard about.

Hint: click on Show advanced search near the top…

Traffic info

• Jouy-en-Josas ⇔ L'Orme des Merisiers ⇔ Le Guichet (RER B) ⇔ Les Ulis

• Massy Palaiseau (RER B) ⇔ L'Orme des Merisiers ⇔ Le Christ de Saclay

• Orly ⇔ Massy Palaiseau (RER B) ⇔ L'Orme des Merisiers ⇔ St Quentin en Yvelines

• Gare de Gif-sur-Yvette (RER B) ⇔ L'Orme des Merisiers ⇔ Parc Orsay Université

• Gare de Gif-sur-Yvette (RER B) ⇔ Saint-Aubin (walking distance from LSCE) ⇔ Christ de Saclay - Buc

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