Dave:
I don't know about Stansted or Gatwick, but the Heathrow diagram referred to is a very old one, predating the plan for T6 and with just a narrow taxiway "corridor" between the existing airfield and R3.
I hope someone is thinking about a better way of getting between this ever-increasing number of 'stick-on' terminals.
The last time I tried to get from T1 to T4, we went down a long corridor to get an airside bus, but when we got there the last bus had gone. Retracing our steps, some kind soul had realized the last bus had gone, and locked all the doors. We were now well and truly stuck. After 20 minutes of screaming, shouting and banging, with no response, I found an internal 'phone and dialed random numbers until someone answered and gave me a number for security. The only saving grace was that our aircraft could not easily find our bags, and were still in the middle of a baggage search when we finally arrived.
Welcome to a real 21st century airport ......... :-(
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