[talk-au] Information source question - sorry kind of lengthy.

[Kim Oldfield]

On 3/2/22 09:23, Graeme Fitzpatrick wrote:
> On Wed, 2 Feb 2022 at 22:18, Kim Oldfield via Talk-au 
> <talk-au at openstreetmap.org> wrote:
>
>     update a short section of road there with access=no.
>
>
> =no or =private, because work crews can still drive in there to do 
> repairs?
Either would be fine as far as I'm concerned. Both achieve the primary 
objective of stopping routing engines from using this road.
>
>     This achieves the main objective of stopping OSM from routing
>     along the
>     way. 
>
>
> & would you also add noexit=yes to each end of the blocked section?
noexit isn't a tag I've used. According to 
https://wiki.openstreetmap.org/wiki/Key:noexit "It must be ignored by 
routing (GPS)." - which means its use shouldn't affect routing.

Also, if you use access=private then noexit=yes is wrong because "other 
modes can continue".

If you are using a map checking tool which complains if it doesn't have 
a noexit=yes tag then add it. Personally, I don't normally add tags 
which have no practical effect on how I use the map, and only affect a 
tool which: I haven't used, don't have experience with, and therefore 
can't verify if I'm using the tag correctly.

> & in regard to "Local Knowledge" ^^
>
> So you're standing in the pub having a cold beer & the two blokes 
> beside you are talking.
>
> "Jeez, Coulsons Creek Road is a mess. Had to go to Merriwa yesterday 
> but it's closed from a landslide, so I had to go all the way to Woop 
> Woop & back".
>
> "Yep, my sons part of the Main Roads crew looking at the repairs. 
> "Very Bad Spot" has gone completely & he reckons it's going to be out 
> for at least 2 years"
>
> Does that count as Local Knowledge?

There will always be sources which require a subjective decision on what 
is sufficiently verifiable to justify mapping it. Are the two blokes 
beside you people who you know previously to be reliable sources? Or are 
they the local drunks who are known to tell tall tales?
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