Hello
 

Hi, I am currently working on my website about underground maps and I have up to now written information on 20 underground rapid transit networks across the world and information on the London underground.

That should keep you busy for a few years! When was London Underground last described as a "Rapid Transport System"? When did you last use it?

Methinks apmonline wants us to buy tickets from him/her for the Rapid Transport System.
No good to me from way up here.
Stuart.

Hello apmonline, and welcome to the forum. Hope you enjoy
All the best
Phil

Welcome to the forum!