In article , I wrote:
ISTM that it would be better to reverse the direction that trains go
around the loop (and still lay over at T4).

If you do that then London-bound trains will have to cross the
westbound line on the level, putting constraints on operations. Anyway,
I don't think that there's room west of Hatton Cross for a crossover to
the eastbound track (the junction is officially 90m from the mid-point
of the station, and a crossover requires at least 40m). So now you're
talking major reconstruction as well as resignalling the loop (which is
signalled one-way only).

I was there today: there is *definitely* not enough room for a crossover
without major tunnelling - the points are less than a car length from
the stopping point. But the westbound platform is signalled reversibly
and there's a crossover at the *east* end. So in theory you only need to
resignal the loop.

However, I'm still unconvinced that the pathing to fit eastbound trains
between the westbound ones is workable, especially as this approach
means the trains need to stop, not just run through.

--
Clive D.W. Feather | Home:
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