On 8 June, 13:48, Andy wrote:
There were four of these
markers on the down line, with 3, 4, 3T and 4T on the signs. I assume
that 3 and 4 are the 3 and 4 car stopping points, as they are close to
the existing points, but what are 3T and 4T for?

Terminating. The north (narrow) part of the platform is only for
trains reversing, as the cab at south end of the train has to be north
of the signal under the footbridge (which they weren't able to
relocate further south).

lamp points for these last two had some sort of electronic box above
the sign.

I think that's for the emergency lighting or some such, and unrelated.

U