"Recliner" wrote in message
...

No, I don't think so. The two sets of lines and platforms are separate,
and parallel to each other (the Airtrack tunnels are south of the HEx
tunnels). Even if there is a connection, it's not meant to be used by
service trains. In any case, the services will be more reliable if kept
separate.

Despite the existing layout, the published Airtrack proposals always
anticipated HEx running through to Staines as well - it is exactly why
Staines station was to get an additional west facing bay platform...

Paul S