On Tue, 9 Aug 2005 22:55:15 +0100, "Bob Hobden" <firstname.lastname@example.org>
>> ...seem to work pretty well:
>On a serious note, why can't we have those too? Almost weekly I hear of
>vehicles breaking through the crash barrier on motorways with drivers on
>that carriageway then possibly having a "head on" (much more lethal than a
>side swipe) so why not.
>Looks like the M25 where it's being widened will have similar concrete
It takes a hell of a lot to cross the barrier. I recently witnessed a
large Sprinter hit one at about 30 degrees (after overtaking me at
about 100mph) and it landed on the right side of the carriageway
(albeit the wrong way up).
Surprisingly effective are the rope barriers, which are designed to
snap off their posts and provide a less drastic stopping action whilst
keeping the vehicle out of the opposing lane. Had the Sprinter lost
control a few miles further up near Meadowhall he might well have
stayed the right way up.
But the answer to your question is almost certainly 'cost'...
'58 Series 2 88" aka "Stig"
'77 101FC Ambulance aka "Burrt"
'03 Volvo V70