Thread: East London Line extension to Highbury & Islington open today
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Old March 4th 11, 10:07 PM posted to uk.transport.london
Tom Anderson Tom Anderson is offline
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Default East London Line extension to Highbury & Islington open today
On Thu, 3 Mar 2011, d wrote:

On Wed, 2 Mar 2011 22:34:44 +0000
Tom Anderson wrote:
Specifically, i think it's that there isn't room for a double track
bearing freight trains with overhead. Freight trains being taller than
passenger trains (passenger trains all fit in W6A in this country, i
believe; squinting at a map from 2004, it looks like the Canonbury curve
might be W9).

I don't think its the height so much as the profile. Passenger trains
curve in towards the top whereas container freight wagons are a box
shape which tend not to work in tunnels where the curved roof would cut
in on the boxy corners.

Iggsacktly, they're taller at the edges!

tom

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