Re: [talk-au] Special event clearways and lane=*

[Andrew Harvey]

On Tue, 15 Mar 2022 at 07:17, Andrew Davidson  wrote:

> I didn't. The thought was based on how people were tagging other
> variable lane counts: https://overpass-turbo.eu/s/1gSc


Yeah and I think that's correct for reversible/tidal flow lanes where the
lane count in either direction or even in one direction changes throughout
the day where they open/close lanes on a schedule. I've used
lanes:conditional along with
lanes:forward:conditional/lanes:backward:conditional for this myself.

Maybe I am overthinking it. If you go with what the wiki says, then
> lanes=* is just a literal count of how many lanes are painted on the
> ground regardless of how often you can use them.
>

Yeah I think that's the way to do it, though for example
https://www.openstreetmap.org/way/252133052#map=18/-33.89141/151.20767 you
can see on the imagery the western side of the road has much shorter dotted
lines so likely this lane is only for parking and not meant for regular
traffic flow, in which case it wouldn't be included in the lane count in my
opinion. In contrast to the road from
https://www.openstreetmap.org/note/2551595 where it's painted as a regular
lane and is used as a regular lane during special events so it's a full
traffic flow lane but mostly used for parking.
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Re: [talk-au] Special event clearways and lane=*

[Andrew Davidson]

On 14/3/22 21:26, Andrew Harvey wrote:


Where did you find the wiki suggesting lanes:conditional?



I didn't. The thought was based on how people were tagging other 
variable lane counts: https://overpass-turbo.eu/s/1gSc


Maybe I am overthinking it. If you go with what the wiki says, then 
lanes=* is just a literal count of how many lanes are painted on the 
ground regardless of how often you can use them.


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Re: [talk-au] Special event clearways and lane=*

[Andrew Harvey]

Looking at the note and the imagery I would say it's definitely

lanes=4 (if no one was parked there then you could use all 4 lanes for
driving)
psv:lanes=designated|yes|yes|yes ("Bus Lane")
access:lanes=no|yes|yes|yes (you can't use the left lane, unless you are a
psv)

parking:lane:right=parallel (parallel parking is available on the right
side of the road)
paring:lane:right:parallel=on_street (per the wiki "As a rule of thumb, if
the parking cars are on the part of the road that is traversible, i.e. that
could and would otherwise be used by traffic, it is parking on_street. If
not, it is parking street_side.")
parking:condition:right:conditional=ticket @ (Mo-Fr 08:00-22:00;Sa-Su,PH
08:00-22:00) (you need a ticket to park here during those times
parking:condition:right=free (free parking, except for those times listed
in the conditional)
parking:condition:right:maxstay:conditional=2 hours @ (Mo-Fr 08:00-18:00);
4 hours @ (Mo-Fr 18:00-22:00; Sa-Su,PH 08:00-22:00)

I think we need an additional tag to say the parking described in
parking:lane:right is part of the lane count.

I don't know how we could tag the special event clearway as obviously we
can't tag the specific times they apply because they are so variable and
ever changing, we probably need a new tag to simply say it's designated as
a clearway for special events only. We should tag this, just not sure
exactly how.

Where did you find the wiki suggesting lanes:conditional?

On Mon, 14 Mar 2022 at 19:18, Andrew Davidson  wrote:

> There is a note on Chalmers St:
>
> https://www.openstreetmap.org/note/2551595
>
> where the question was how many lanes does this road have?
>
> Normally I'd say:
>
> lanes=3
> lanes:conditional=2 @ ()
>
> the wiki suggests:
>
> lanes=4
> lanes:conditional=3 @ ();2 @ ()
>
> because it wants to count the special event clearway. Now the problem is
> that I don't know what to put in as a condition for 3 @ () as it is
> arbitrary ie: whenever someone decides to type something into the system.
>
> Do people have an opinion about which option to use:
>
> lanes=3 ... and ignore the clearway
> lanes=4 ... and come up with something for the condition
>
> or
>
> lanes=3 and use the same condition for 4 @ () with the idea that if
> the condition can't be parsed at least it will default to 3.
>
>
>
>
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