[OSRM-talk] unknown access tags

[Florian Lohoff]

Hola,

On Wed, Jan 03, 2024 at 09:31:00AM +0000, Roland Swingler wrote:
> It sort of depends on your use case, both ways will produce incorrect
> inferences, but it is a reasonable thing to do. You can see the full list
> of values people have used here:
> https://taginfo.openstreetmap.org/keys/access#values - for such a common
> tag there are many many things that are spelling mistakes or other junk. It
> really depends on the relative value of false positives and false negatives
> for you.

I created a patch

https://github.com/Project-OSRM/osrm-backend/issues/6762

And tried brute-forcing routes (~500K) with that in my county and checked the 
routes which differed. Typos are not that much of an issues as
keepright, osmosis and co make a good job it seems. Differences where
very few - I had 2-3 hot spots where roads were tagged with multi-value
access tag values, and some interesting values like "residents",
"employees", "unknown" - Which all should be avoided i think

I found "designated" as value beeing used so i added it to the positive
list. Besides that i'd say it produces better results.

I just switched my RouteQA over to running with that patch.

Flo
-- 
Florian Lohoff                                                     f at zz.de
  Any sufficiently advanced technology is indistinguishable from magic.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <http://lists.openstreetmap.org/pipermail/osrm-talk/attachments/20240103/4161e5ef/attachment.sig>