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[email protected] · July 12th 14, 11:53 AM posted to uk.transport.london

In article ,
(Recliner) wrote:

On Sat, 12 Jul 2014 11:18:27 +0100, Roland Perry
wrote:

In message
,
at 04:03:05 on Sat, 12 Jul 2014, Recliner
remarked:
The Lea Bridge station is a reopening, using the existing platforms.
A better comparison might be the all-new station at Southend Airport,
which cost £16m in 2011.

East Midlands Airport station cost £25m and Cambridge Northstowe
Parkway (officially called "Science Park") is going to cost £26m.

Common features are that each have one platform plus one island, large
car parks and new access roads, and are built on out-of-town brown
field sites. The costs are therefore consistent with Southend Airport.

Presumably they needed new track work to accommodate three platform
faces?

In both cases the track was there before - the two fast and two slow
lines through EMD (I misremembered - there's actually three platforms
although one is much shorter), and the two fast and one siding/loop at
Science Park. But a certain amount of re-positioning to fit the island
platform is no doubt required in both cases.

Yes, the track would have to be slewed for sure to fit the island
platform in. Were new points and crossovers needed as well? That
would increase not just the track, but also the signalling cost.
Obviously the large car park and access road pushes up costs, too.

I'm pretty sure the through lines at Cambridge Science Park won't need any
realignment. The bay platform line will be new construction on pre-existing
solum.

--
Colin Rosenstiel