"Adrian" wrote in :
I'm not that familiar with the Models used in London but Southampton
had some a few years back. The type used there had their driven axle on
the rear section,on one of the rare occasions that city got a smattering
of snow one of these showed the weakness in that arrangement by
colliding with a pub on a sharp corner. The middle set of wheels lost
grip and the rear section carried on pushing causing the bus to
jackknife in the middle.

What makes that "weakness" rather than a "driver error" - I'm really not
clear.

It's like looking at a jack-knifed articulated lorry and writing off the
whole breed, isn't it?
--

Andrew