I have a question for experienced RER B travelers.

I have been doing an itinerary on ratp.fr using "Aeroport Charles de Gaulle 1 - RER" as my departure into Paris.

My question is:
I see on the map given by ratp.fr that RER B seems to not be in the Terminal 1 but some other building. Is this true? Can I get the RER B line into Paris direct from Terminal 1 without having to travel to Terminal 2?

There are two RER B stops at the airport, one at Terminal 1 and the other at Terminal 2. From Terminal 1, you take a shuttlebus to the RER station. The bus can be found outside Door 22 of the terminal.

The shuttle bus has been replaced by the CDGVAL light rail system which will take you from Terminal 1 to the CDG1 RER station.

Thank you for the quick responses! I can always count on this forum.

I'm glad to hear that I can get the RER B from Terminal 1 instead of going over to Terminal 2.

Has anyone here actually used CDGVAL yet? I saw a few news reports when it opened, but it has gotten very little publicity, and the Aeroports de Paris website still says you need to take the shuttlebus from CDG 1 to the RER. Makes me wonder if they are having problems with it (remember that trouble-plagued monorail at Newark airport?)

We took the RER -to- CDG in April, heading for Terminal 1. The CDGVAL has a stop in the RER station near T-1, just follow the signs. Smooth ride to the terminal, which is being renovated. Very easy and nice ride.

My new favorite "CDG" website is:
http://www.easycdg.com

I have read about the CDGVAL and am glad it seems to be working. jSeems to be much nicer to use than the shuttle busses.
That's the fun part of travel - all these new experiences!