Re: [Talk-us] Temporary closures and OSMAnd offline map downloads

[Abhijit Kshirsagar]

Thank you all.

I have uploaded the change here:
https://www.openstreetmap.org/way/694140133#map=18/44.97872/-93.23941

I've added the "highway=construction" tag as per the guidelines
(https://wiki.openstreetmap.org/wiki/Key:construction#Highways).
I will keep an eye on when the change shows up on OSMAnd (I don't have
a subscription to OSM Live Updates).

Abhijit


On Thu, May 30, 2019 at 5:25 PM Greg Troxel  wrote:
>
> Jmapb  writes:
>
> > On 5/30/2019 4:22 PM, Abhijit Kshirsagar wrote:
> >> Hello all,
> >> I'm an old OSM user and have recently moved to the US.
> >> What is the correct procedure to submit temporary (at least a few
> >> weeks long) road closures on OSM?
> >> Also, how long to changes typically take to make it to the
> >> downloadable maps that the cellphone apps (such as OSMAnd) use?
> >>
> >> Thanks in advance,
> >> Abhijit K
> >> Minneapolis, MN
> >>
> > Howdy Abhijit, and welcome to the US, and to Talk-US!
> >
> > There was a related discussion on the tagging list earlier this month:
> >
> > https://lists.openstreetmap.org/pipermail/tagging/2019-May/045122.html
> >
> > The considerations here have a lot to do with the duration of the
> > closure -- and this is closely related to the second question you asked,
> > about frequency of updates for the programs that use OSM data. This
>
> Agreed.
>
> > frequency is entirely up to individual apps. For OSMAnd, I think it also
> > depends on what version you're using.
>
> Normal OSMAnd usage has maps generated at the end of every month,
> available on about the 10th of the following month.
>
> OSMAnd has a second mode "live", where you can get delta updates from
> your last full map, at intervals up to hourly, and in particular on
> demand.  You can then see the time of update, and the time of last map
> change.  If I update, I typically see a last map change within about an
> hour, maybe a bit longer, and usually when it's longer (at 6am, it might
> be last evening) I suspect there were no edits overnight.
>
> > But it's highly likely that a snapshot of the map made today will still
> > be in use on some app or device months or even years from now. This is
> > one reason most people avoid tagging roads closed if the closure is
> > temporary.
>
> It's true that this likelihood exists, but I would argue that users of
> OSM data should have a plan to get users fresh data reasonably often
> (longer than 6 months does not seem respsonsible).  I do not think we
> should design for systems that are not attempting to get reasonable
> freshness.
>
> I have observed over my 10 years in OSM that the typical update cycle
> has shrunk, and in many cases when it gets to a month it doesn't shrink
> much more, usually.
>
> With OSM, there are no licensing reasons not to update; it's about
> transfers of large files vs freshness.  And then there's delta updates,
> which osmand does.
>
> > In the thread linked above, I proposed using the "conditional syntax" to
> > make a temporary road closure if the dates are known. It's mentioned in
> > the wiki, but not much seen in the wild. There's no way to add
> > approximate dates though. And it's unclear if any software will actually
> > parse these tags correctly.
>
> Agreed.   Around me, hard to predict.
>
> > Other than that, it's really a judgement call as far as when to close a
> > road. If you do and the road re-opens quickly, you risk some apps
> > thinking it's closed for a long time to come. If the road will be closed
> > for months, though, I'd say it's probably better to go ahead and close
> > it. (Be sure to add a fixme to help remind people to open it again.)
> >
> > The truth is IMO we don't have a perfect way of dealing with this right
> > now!
>
> Indeed that we don't have a consensus perfect approach.
>
> One should also consider the relative merits of
>
>   road is closed and router thinks it is open
>
>   road is open and router thinks it is closed
>
> typically, an open road that is marked closed is not the only way, and
> reasonable routes will be chosen.  As opposed to a closed route that is
> marked open, the user will be routed to it and hit a detour.   So I
> think "some apps (especially those that have too-long update cycles)
> thinking it is closed for a long time" is not a big deal, because 1) it
> doesn't hurt much and 2) those apps should shrink their update cycles.
>
> Personally I have come to view 1 month as the longest reasonable update
> time, and if a road will be closed for 30 days or more, and I get around
> to i

[Talk-us] Temporary closures and OSMAnd offline map downloads

[Abhijit Kshirsagar]

Hello all,
I'm an old OSM user and have recently moved to the US.
What is the correct procedure to submit temporary (at least a few
weeks long) road closures on OSM?
Also, how long to changes typically take to make it to the
downloadable maps that the cellphone apps (such as OSMAnd) use?

Thanks in advance,
Abhijit K
Minneapolis, MN

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Re: [Talk-in] Looking for a desktop OSM client for use in Debian

[Abhijit Kshirsagar]

Have you looked at Viking and JOSM?
Abhijit

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Re: [Talk-in] Seeking advice for tree mapping using OSM

[Abhijit Kshirsagar]

I agree - "OSM is not the best place to use as a datastore".
Although, perhaps the data itself could be stored separately, and
integrated with the OSM map layers for display / analysis etc?

~Abhijit

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Re: [Talk-in] Is Connaught Place a roundabout?

[Abhijit Kshirsagar]

Technically yes, it is a roundabout, because it is (or was) called
"Connaught Circus".
However, it is so big that its not a roundabout for all practical
purposes - just like India Gate.

Also, the official name is now "Rajiv Chowk" which makes (IMO) even less sense.
(because Chowk in hindi = 4 way intersection)

Abhijit



On Fri, Jan 15, 2016 at 3:07 PM, Arun Ganesh  wrote:
> On the recent world roundabout map[1] made by Sajjad, noticed that CP does
> not have the `junction=roundabout` tag and was debating wether it is
> actually a roundabout.
>
> Is there anyone from Delhi here who has views on this? OSM:
> http://osm.org/go/zmjtwnerJ-
>
>
> [1] https://www.mapbox.com/bites/00205/#13.19/28.6313/77.2173
>
> --
> Arun Ganesh
> (planemad)
>
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[Talk-in] Android Apps (Was: Network/Operator tags for railway systems)

[Abhijit Kshirsagar]

On Thu, Nov 5, 2015 at 8:39 PM, Shibu Narayanan
 wrote:
> Hi all,
>
> I have an android phone.
>
> Which are the good apps to capture data for OSM?  I need an offline
> solution.
>
> I mean, on the field, I don’t have to use internet.  I just keep capturing
> place names , etc..
>
> When I get home, I should have the option to enable wifi and "upload" any
> data to the osm database.

Have you tried OSM?
Its really straightforward.

I use a very light app (GPXLogger), and carry a camera. Once I get
back I cam geotag the photos using the GPX - this way I don't need to
take notes while moving around.

OSM will allow you to take voice and video notes as well.

Abhijit

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Re: [Talk-in] Android Apps (Was: Network/Operator tags for railway systems)

[Abhijit Kshirsagar]

Apologies - yes I meant OSMAnd.

Abhijit


-- 
~Abhijit
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