Bledlow Halt

Platform 4, CPRRA heritage Railway

Nothing of the North Downs railway is electrified in this region.

https://www.youtube.com/watch?v=bxVu99xCP5Q
around minute 10:00 this route is shown without any 3rd rail.

Should there be an A/B split for platforms, as they are signposted that way?

This crossing:
(1) has stiles at the entry and exit; and
(2) has steps up to the rail line level.
As such, it may be unsuitable for certain cycles / cyclists

platforms lengthened (both ends)

via StreetComplete 14.0

Should the Tyne & Wear Metro be listed in the signaling section on OpenRailwayMap as PZB since that is the closest to the signaling system it uses?

Waterloo and City: depot area is the whole semi-open area under Spur Road (ie, centroid more to South-West).

https://www.openstreetmap.org/node/3359292021 - is it located underground?

In such case location=underground would be nice.

Or maybe level tag if it this location has levels.

Note that layer=-1 doesn't mean it's underground.