"Peter Lawrence" wrote

Which raises two points - why no yellow lines and why position a
signal half-way along the platfomr?

I don't think there is a signal. The orange thing is a CCTV camera, while
the structure in the cess beside platform 1 supports the CCTV monitors. One
of the problems with island platforms is that the driver is on the offside,
so you need CCTV rather than mirrors to support DOO.

Peter