"Roland Perry" wrote in message

In message , at 19:45:42 on Sat,
7 Jan 2012, Eric remarked:
Or, better still, this pictu

http://www.metro-pole.net/actu/IMG/j...4287_p1200.jpg

That's a much better picture.

If those are indeed two separate twin-axle bogies, they're very close to
the ends of the carriages, which means there won't be much relative
movement between them (compared to normal carriages with much more
overhang). This makes it much easier to fit open gangways.