There's a barrier with a strange tag value at node/459159418 . What actually is it?

When I drove past here a couple of weeks ago, the road layout bore no relation to what is in OSM. There was one road from the south that turned west, and one joining from the north. There were not three parallel north-south roads (though individual lanes were marked at the junction, and could be mapped as lanes).

Bridleway needs a bit more of a survey. It presumably joins the roads at east and west, and runs through the gate. How much of it is actually a track?

Does this bridleway run on this alignment or along the farm track (and is the alignment of that shown on Bing correct)? More GPS traces needed.

There are two buildings here on almost exactly the same footprint. Presumably one of them is more correct than the other?

There are a couple of other examples of overlapping buildings here.

Are there bus stop poles physically present here? The Naptan data didn't think so (they were set as customary stops), but someone's added "highway=bus_stop" tags yet not marked the Naptan node as verified. Needs a survey.

Check road name - current road name differs from what was originally surveyed.

Check road name - current road name differs from what was originally surveyed.

Check road name - current road name differs from what was originally surveyed.