Mapping footways inside a compound

If it's wide enough for vehicular traffic and the primary use is by people on foot I'd probably use highway=footway. However, I wouldn't obsess about getting the tagging "exactly right" for now - far better that it's added to the map as something that's nearly right than not added at all.

There has been lots of discussion of how to tag narrow or wide multi-use paths (search through the mailing lists and wiki edits for "highway=footway" and "highway=path" for more details). You're there (or at least are looking over the fence) and are in a better possition to judge than anyone else. If there are other local mappers, perhaps ask them too?

There's an article here that describes this "choose what best fits" approach. Unfortunately, "footway", "path" and "cycleway" mean different things to different people so you won't get general agreement here - so you, as the person "on the ground" gets to choose.

For mapping footways (ways that are unsuitable or forbidden for vehicles) you can either choose between highway=footway or highway=path. Both tags can express the same when combined with certain access tags. See the default access values for details.

(Theoretically you could also use a completely different highway category and apply lots of access tags but you shouldn't do this as this is nonsense and most renderers and routing applications also use the highway class for additional implications).

If the ways you want to map are mainly for pedestrians and forbid bicycle usage, then go for footway. If they allow bicycles then you can either add the bicycle access tag when using footway or use path without any additional tagging.

If you are curious why there are two different tagging methods then I suggest reading these answer to related questions: one two.

Regarding tracks and services: A track is mainly for agricultural and forestry vehicles and thus often found outside of cities or at the border of them, but rarely inside. A driveway instead is a way for vehicles leading to a property. Both are unsuited for tagging pedestrian-only ways. Take a look at this question for more details on them.

Hi, are the footways paved or just a so called elephant path, between entrances in different buildings ? If it’s paved officially use footpath, but if not, I would go for track. Greetz