On Sat, 5 Jul 2008 08:14:43 -0700 (PDT), BRB Class 465
wrote:

It's not as simple as that. Wheelsets are a compromise between those
which perform well on straight track and those which perform well on
curves. On mainline railways this balance is easier to strike because
curves are normally not particularly tight. However the DLR has some
extremely sharp curves, for example at West India Quay, hence the need
for suitable wheelsets. Obviously this balance has not yet been
perfected, but it's by no means an easy thing to do.

Manchester Metrolink appears to manage it without such a ridiculously
poor ride, give or take on the sections of 50-year-old track.

Neil

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Neil Williams
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