There are service yards here, providing rear access to buildings, used for parking, turning, storage, refuse, deliveries, loading, unloading etc. Last time I looked (which was some time ago) I couldn't work out how best to tag them, despite this being a common land usage type.

The 99 bus often stops in the lay-bys on both sides of the road here to pick up and set down passengers, but there are no signs to mark the bus stop location.

These bridges are not signed as being one way, nor are there any keep left signs that one might usually expect, which makes them slightly confusing to approach. Technically, in the absence of any signs to the contrary, they are simply just two parallel narrow two-way roads.

The Almondsbury Interchange <https://en.wikipedia.org/wiki/Almondsbury_Interchange> is clearly not a Roundabout!

There is a railway loop or siding here.

Is Clack Hill still one way since The Banks reopened?

This is not a junction I visit frequently, but the A1 flyover at Old Craighall Junction being tagged as a Trunk Road looks strange and feels wrong. The Trunk Road (Primary Route) clearly follows the A1 east and A720 south, it does not go over the flyover as the A1 west of here is correctly tagged as a Primary Road, with white road signs (being careful to distinguish from a British Primary *Route*, with green signs). Even the eastern and southern sides of the roundabout are not technically part of the Primary Route and ideally would be tagged as a Primary Road rather than Trunk Road. Not doing this myself as I am not familiar with the history of the mapping in this area.