In article ,
(Theo Markettos) wrote:

D7666 wrote:
Kings Lynn does not seem to be part of TLproject anymore : Lynn is
an IEP route by all accounts. See discussion further back up thread.
However, there is conflicting info on this - IMHO as the GN part of
TL is yet years away - and importantly is after the current FCC
franchse is due for renewal - DfT et al are keeping all options open.

While 5x23m IEP (a 442/444 equivalent) might suffice the King's Lynn
demand, it doesn't fit in very well with the Cambridge usage. In the
peaks, Cambridge trains need to be 12x20m equivalent. Unless this IEP
couples another at Cambridge and they run to KX, replacing today's
8x20m with 5x23m is going to mean a reduction in capacity. Or is
there another path available? Even off-peak there's likely to be a
need to run 8x20m on Camb-London before too long.

Or would 10x23m IEP run Camb-KX hourly, and the other off-peak 3tph
(fast, semi-fast, slow) be TL?

Cambridge-KX is 4x20M 365s off peak now, though the peaks run on later
than elsewhere perhaps. The 10:20 Cambridge-KX is 8 cars for example but
the 15:45 KX-Lynn which can load pretty full, especially on Fridays, is a
single unit. The 19:15 KX-Cambridge and 19:45 KX-Lynn are 8 cars, the
latter splitting at Cambridge, as is the 20:45 Cambridge-KX (the 19:15's
return working) but that's to get stock back to Hornsey I expect.

So coupling/uncoupling a pair of 5x23m IEP units at Cambridge would be
perfectly sensible or so it seems to me. It would increase existing
capacity by nearly 50%.

Would King's Lynn keep its 317s for peak journeys to Liverpool St?

He, he. The City commuters down on their luck for other reasons now?

--
Colin Rosenstiel