This is in answer to the post that asked about maps showing time-based ,
rather than spatial relationships between stations.

It's a research study made about the perceived waiting time to get from
one place to another, so doesn't cover much of London (just a few
important tourist spots). It also has an interesting Shockwave animation
showing its results.

http://waiting.p-h.org.uk/temporalmaps.html


--
Martin @ Strawberry Hill