Motorcycles in your bus lane

That cycle lane under the arch is a joke - the arch is too small for 2 lines of cabs and a bike lane. It's also hard to see from a car because you invariably approach it in a queue, not from a clear run. In my opinion the middle gates should be open and made into the bicycle lane.

Not for the cyclists it's not.

Make it only one lane of cars, which I think was the original idea, then there's room for bikes, cars and motorcycles. The first two weeks after that lane went in, the cars kept to a single lane and it worked well. The idea for using the middle gate for cyclists would then have us merging left into the motorbikes, which as you mention, try to stay to the right of the cars. Sounds like a recipe for trouble.

That junction should be redesigned and the central island should be shrunk and the junction moved back so that filtering is safer and easier.

Agreed.

Here's the document.
Road Causalties in Great Britain 2006 on a link from the CTC forums. It makes interesting reading.
For a start motorcyclists are 3 times more likely to be killed or seriously injured on the road than cyclists.

Is that adjusted for the relative number of motorbikes to cycles on the road?