Is the Ariane 5 rolled out or is the hangar moved away?

Question

Ariane 5 rockets (like the one carrying the JWST) are assembled upright in a hangar, but during the launch (obviously) the hangar is no longer around the rocket. Does the Ariane 5 roll out of the assembly hangar? Or is the hangar moved away from the Ariane 5?

I recently saw a mockup of an Ariane 4 where the hangar got rolled away from the launchpad and the rocket stayed in place. Is this still the case for Ariane 5?

Answer 1

The Ariane 5 is moved from the BAF (FR: Bâtiment d’Assemblage Final, EN: Final Assembly Building) to the launch pad:

There is no encapsulation facility at the launch pad, which is "approximately 2600 m*" from the BAF.

*measuring with google maps gives 2.60 kilometers.

Sources:

• Ariane 5 User’s Manual, Issue 5 Revision 3, also available from main Ariane 5 webpage
• Ariane 5 Brochure, also available from main Ariane 5 webpage