Opened 2 months ago

Last modified 2 months ago

#17339 assigned defect

false positive "Sudden highway type change"

Reported by: Klumbumbus Owned by: abalosc1
Priority: normal Milestone:
Component: External rule Version:
Keywords: Cc:



Validate e.g. or which warns about "Sudden highway type change". These are very common tagging situations.

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Change History (6)

comment:1 Changed 2 months ago by dmanzer95


The reason that this was flagged was because the residential road and secondary road are coming together at their beginning/endpoints (Same reason for the second example just different highway classifications). I notice that the reason for the split in the secondary road in the first example is because of different sidewalk tags, so this would be a false positive. There will definitely be false positives as there are with OSMOSE.

comment:2 in reply to:  1 Changed 2 months ago by Klumbumbus

Replying to dmanzer95:

There will definitely be false positives

Some false positives are often unavoidable, but imho this rule produces way too much false positives and way more false positives than "right positives" which makes this rule barely useful.

comment:3 Changed 2 months ago by dmanzer95

after another look I agree. Working to more closely match OSMOSE results

comment:4 Changed 2 months ago by Klumbumbus

I too thought about possible code improvements and I think a proper solution is not possible with the current mapcss implementation in JOSM, but I could be wrong.

comment:5 Changed 2 months ago by dmanzer95

I may have a way to narrow down the results but it could get a little messy. I'll test it out and post my findings here. Thanks for bringing this issue up!

comment:6 Changed 2 months ago by dmanzer95

Right again, mapcss did not support what was required for this idea.

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