Iain wrote:In what sense is Tramlink isolated? It connects up at both Wimbledon and West Croydon.
I guess - but New Addington, Elmers End and Beckenham Junction are very off piste from the classic Tube Map haunts!
greatkingrat wrote:Planning the night section will be the key. The problem is the bits of line not served, eg Mill Hill East, Heathrow Terminal 4, Hainault-Woodford, which restricts your options a fair bit.
Given the challenge seems to be a Chesham start, I'm guessing he's aiming for the Friday night Battersea Park service. I'm guessing he's probably going to kill off a couple more stations in the Zone One area, then head down and grab the Victoria and Northern Lines at Morden, then up to Edgware, run to Canons Park (no buses at that time) then pick off some of the Jubilee, head into town and perhaps then up the Piccadilly Line to Cockfosters. The first 307 bus calls at Bramley Road at 0503, which I'd guess he'd be on time for. The reason I'd think he'd grab Morden early is that as Iain pointed out, Wimbledon (with which Morden is usually paired) will be connected with Tramlink, so he'd need to make a separate trip for Morden.
I reckon the key to the challenge, as much as planning the night section, is knocking off all the bits closed on the weekend on Friday! I'd guess a possible sequence we could see would be District Line eastbound

Upminster

Romford

Shenfield

Maryland

Manor Park

Woodgrange Park

GOBLIN westbound on Friday - especially as all of these are highly likely to get weekend closures!
Unfortunately, we as a community have probably had enough documentary related drama to last us for years - which is a pity, because I think this could make quite good TV!