Colin Rosenstiel wrote:

It doesn't say anything about turning. However, if it's stopped at a bus
stop you're stuffed either way. Because they are so long you can't pass
either side in the time it is stopped.

It should not pull off until anything overtaking it has passed,
assuming it was stopped when the overtake begins. If it doesn't, the
driver should be booked as he is breaking the law (and being
dangerous).

However, any vehicle that can't see if it safe to turn left without
injuring someone on its nearside should be banned from the roads. If it
was a railway vehicle it would be as unsafe. Two Cambridge cyclists have
been killed in the last year because of such unsafe vehicles.

The vehicles aren't dangerous, and they can see down their left hand
side (except for the blind spot that any vehicle has). However, it is
inappropriate for a cycle to overtake a bus (or any other vehicle) on
the left, unless there is a mandatory cycle lane. A reminder for the
(annoying minority of) cyclists who forget this is not a bad thing.

Neil