Communicate existing bus-only and pedestrianized better

[dabreegster]

https://www.openstreetmap.org/way/353926198
There should be filters on these by default

[XioNoX]

Thanks, came here to open that issue :)

[dabreegster]

This can't be done in a straightforward way of one (or two) filters per road segment with the tag, or this monstrosity occurs. The filters need to only get placed where these special case roads meet normal roads.

[dabreegster]

Not perfect, but the Manchester example is looking more tame. Need to rethink the red disconnected cells -- this was meant to show user error originally, but they're pedestrianized areas here.

[XioNoX]

Thanks ! That works fine for my use-cases based on my quick tests.

The red areas should ideally show streets that are only reachable through a street with a different road restriction than they currently have (making them "disconnected"/"islands").

[dabreegster]

Manchester center https://www.openstreetmap.org/#map=16/53.47990/-2.24700 is a great complex test case. Ultimate goal is to handle these complex city centre pedestrianization schemes nicely, whatever that means. A next step to improve there is looking at adjacent cells that count as separate -- is that necessary? The existing filter logic uses different filter types right now for not clear reasons, and merging cells might be possible.

If there are other pedestrianized centre areas like Manchester, would be useful to have more (and simpler) test cases. @XioNoX has mentioned a few in different issues; mind linking to something like https://www.openstreetmap.org/#map=16/48.58186/7.74710 (which looks like an enormous island-ish thing that has no through traffic already?)

[dabreegster]

Ah, the Grande Île example isn't fully pedestrianized; streets on the north side seem open. Here's a quick view of it, is it roughly correct today? (Excluding the angry red cell that isn't really an error that it's disconnected):

Or maybe the other styling is easier to see:

[TFCx]

From what I remember, it's mostly correct (but I lived there 15 yrs ago): the north part wasn't pedestrian, as well as the south part near the Gutemberg place.

As I saw your 2nd screenshot, I'm now wondering if when displaying color on roads, the inaccessible part should still be displayed in "block mode". It's somewhat usual in cartography to have the pedestrian areas / touristic centers displayed in another color. Inaccessible areas are still very specific in their functionality. A lighter red might also help with the visualization.