| Re: When were HGVs first banned from Lane 3 of motorways? |
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Group: uk.transport · Group Profile
Author: DerekDerek Date: Sep 6, 2008 10:47
On Sat, 6 Sep 2008 18:25:43 +0100, "Knight Of The Road"
hotmail.com> wrote:
>
>
>"Boltar" yahoo.co.uk> wrote
>>> Sometimes I've wondered how many millions of tons of fuel would have
>> been saved by vehicles of all types over the decades if instead of
>> motorways going up hill and down dale they just carved through the
>> landscape as much as possible on the flat.
>
>
>Exactly what they do in Italy- bridge, tunnel, bridge, tunnel, I've driven a
>sixty mile stretch of Italian motorway and not spent much more than a mile
>of if on actual land.
On the coast there's usually there's a little town or fishing village
in the valleys that has to be served by an entrance and exit and
there'll be an optimum height to get the interchange in
Build it high and the bridges get very tall (Goes to collect Nobel
prize for the Bleedin' Obvious), build it low and the tunnels get
longer and more expensive.
Sea level is the same all the way along, so Bob's your uncle
Incidentally a subsidiary reason for building the motorways in the UK
was to get rid of all the hills of colliery waste (AKA Slag Heaps) and
they didn't want to haul it any further than they had to to keep the
cost down.
Derek
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