Right I'm really confused by this layout[1]. Am I right in thinking that the
layout is:

Left turn lane | Cycle Lane | Bus Lane (ahead only?) | Ahead (& right turn?)
only lane

Then why the need for a bus lane & a seperate cycle lane?

To me it seems like just two lanes (one for all left turners, one for all
ahead traffic) would be better :-S

Could you or someone else who knows the area enlighten me?