Suggestion for further western mainline expansion

[Mshair]

Hi. I would like to suggest a further expansion to western mainlines.

So we can re-create real world diversions, how about the line from Swindon through the Golden Valley to Gloucester and then on to re-join at Severn Tunnel Junction. This would enable simulation of real world diversions when the Severn Tunnel is closed.

A spur could also be added to Cheltenham to allow for the full Cheltenham to Paddington service.