LSCE-related public transport

Shortcut to this page: http://bit.ly/go_lsce

Coming to LSCE

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

The Paris-Saclay resources

The Paris-Saclay website is supposed to aggregate all the useful information for the Paris-Saclay area Good luck for finding information in English…

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)

Journey planning and maps

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

Understanding bus numbering inside and outside Paris

RATP resources:

Main website: English / French

Bonjour RATP website

Traffic information

Maps

Smartphone apps (Bonjour RATP): Android / iOS

Useful lines for LSCE people

Some maps

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

RER B

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

SNCF Ile de France

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

Line 4606

Note: formerly line 91.06 (until September 14th 2025)

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

Line 4609

Note: formerly line 9 (until September 14th 2025)

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

Line 4610

Note: formerly line 10 (until September 14th 2025)

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

Line 4611

Note: formerly line 11 (until September 14th 2025)

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

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