Split footway map key string

[AntonKhorev]

Changes this mapnik map key

to this

and the same for cyclemap.

I'm not entirely sure that it should be done, but here's a complaint #1087 claiming that it's difficult to translate the combined highway=footway / highway=path string correctly.

The rendering is combined though on both mapnik and cyclemap layers.

[tomhughes]

Does highway=path always get rendered as a footpath though? or does it depend on what tags it is combined with?

As I understand it (and it's not a tag I ever use) it's a generic tag that covers all sorts of paths and access tags or something are then used to provide the detail.

[HolgerJeromin]

Tom is correct here:

https://www.openstreetmap.org/way/1112909185#map=18/52.51062/13.51854
Is rendered like a cycleway because of bicycle=designated

code:

https://github.com/gravitystorm/openstreetmap-carto/blob/258d354ae48d00e732ff389a08bc296d9d55eca9/style/roads.mss#L717

[AntonKhorev]

Does highway=path always get rendered as a footpath though?

in 95% of the cases:

[feature = 'highway_path'][bicycle != 'designated'][horse != 'designated']

https://taginfo.openstreetmap.org/tags/highway%3Dpath#combinations

4.38%
bicycle=designated

0.10%
horse=designated

[tomhughes]

But at the end of the day the text in the key is not supposed to be interpreted literally as a tag value, just generically as "this is a foot path".

It's a bit odd that we use footway in the key really as footpath would be more typical english.