Is there a correct way to link pavements and roads when there is no formal crossing? Take for example St Anne’s Court in Soho, London, which runs between two roads with pavement but at either end there is no formal crossing, as there are no road markings or lowered kerb.
I noticed that if the footway only connects with the pavement, the routing will respect that and make you walk all the way down the pavement until you reach a crossing. However, crossing informally is an option, though may be not a viable one for wheelchairs due to the raised kerb.
I recently stumbled across the tag footway=link - is that an option? Should this be used in combination with crossing=informal? Or is linking pavements and roads not recommended when there isn’t a way suitable for wheelchair users?
I am not familiar with this area but as general advice, I would add a link to the road and even to the pavement on the opposite side in this case and at each intersection if crossing is possible. If it is not footway=crossing, footway=link is the proper tag for these connections. The kerb can be added with a node on the way using barrier=kerb plus additional tags, see Key:kerb - OpenStreetMap Wiki.
Looking at the area, I think many links are missing, so far.
Unless there is a lowered kerb, I’d argue it’s not appropriate to tag them as an unmarked crossing. To directly quote the crossing=informal page on the wiki:
The difference to crossing=informal is that part of the community understands that the tag crossing=unmarked should be used for places that are designated in one way or another as a crossing, at the very least through a lowered kerb.
Thank you for the clarification @osmuser63783 How do I use this crossing=informal in the case of this way - Way: 1325257247 | OpenStreetMap? Do I simply add the tag, in addition to highway=footway and footway=link? The wiki doesn’t provide any examples of tagging ways