> [crossposted to uk.r - apologies if you've had this already; should
> really go to a cam. group too, but i don't know those]
>
> Sadly not time travel maps:
>
> http://www.mysociety.org/2006/travel-time-maps/
>
> But very interesting nonetheless. We were talking about this ages ago; i
> even started writing a program to calculate isochrones, but these chaps
> have beaten me to it (again).
You can get one developed by the DfT if you have several grand to spare...