Can you cross Heathrow North-South?

[Ham]

I wonder if anyone knows, I've been looking at the maps and it would seem that there is at least bike/ped access to the centre of Heathrow (?) through a tunnel, and some maps show it going through to the south. Anyone know for sure?

[Martin]

no ; the T123 to T4 tunnel is airport vehicles only (I've been through it on an LT  bus before but they don't any more)

you can take a bike for free between T123 and T4 on the Heathrow Connect train though (don't even have to pay as a passenger) and also IIRC T5 on the Heathrow Express

According to wiki and BAA you can cycle through the tunnel from the North any time and have priority over cars; but pedestrians are now banned. There was talk of banning all vehicles from the tunnel as it's right under the runway and thus a security threat and using a shuttle transport system.

[Ham]

Ah, thanks. All the way round looks the best bet, then. (Time is the problem more than anything else as it happens)