[Talk-us] Whole-US Garmin Map update - 2017-01-04

[Dave Hansen]

These are based off of Lambertus's work here:

http://garmin.openstreetmap.nl

If you have questions or comments about these maps, please feel
free to ask.  However, please do not send me private mail.  The
odds are, someone else will have the same questions, and by
asking on the talk-us@ list, others can benefit.

Downloads:

http://daveh.dev.openstreetmap.org/garmin/Lambertus/2017-01-04

Map to visualize what each file contains:


http://daveh.dev.openstreetmap.org/garmin/Lambertus/2017-01-04/kml/kml.html


FAQ



Why did you do this?

I wrote scripts to joined them myself to lessen the impact
of doing a large join on Lambertus's server.  I've also
cut them in large longitude swaths that should fit conveniently
on removable media.  

http://daveh.dev.openstreetmap.org/garmin/Lambertus/2017-01-04

Can or should I seed the torrents?

Yes!!  If you use the .torrent files, please seed.  That web
server is in the UK, and it helps to have some peers on this
side of the Atlantic.

Why is my map missing small rectangular areas?

There have been some missing tiles from Lambertus's map (the
red rectangles),  I don't see any at the moment, so you may
want to update if you had issues with the last set.

Why can I not copy the large files to my new SD card?

If you buy a new card (especially SDHC), some are FAT16 from
the factory.  I had to reformat it to let me create a >2GB
file.

Does your map cover Mexico/Canada?

Yes!!  I have, for the purposes of this map, annexed Ontario
in to the USA.  Some areas of North America that are close
to the US also just happen to get pulled in to these maps.
This might not happen forever, and if you would like your
non-US area to get included, let me know. 

-- Dave


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Re: [Talk-us] Boston speed limit too Re: Michigan speed limit changes coming soon

[Greg Troxel]

Bill Ricker  writes:

> ​the question then is, can we tell (without driving in circles) is if an
> existing ​30 mph tag in Boston was implicit or explicit ... to find which
> might need fixing

No, you probably can't.  Perhaps massdot will update and you can
compare.  But, I see almost zero speed limit signs refllecting the 30mph
thickly-settled limit.  I see very few for the unposted 40 (notb thickly
settled, not divided), and pretty much every divided highway (50 if not
posted) is posted one way or the other.

But this also seems like  distinction without a difference, and I don't
think anybody is going to slow down...


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Re: [Talk-us] Boston speed limit too Re: Michigan speed limit changes coming soon

[Bill Ricker]

On Sat, Jan 7, 2017 at 6:31 PM, Greg Troxel  wrote:

> Also, we do have the implicit 30 mph tagged on many roads.   While there
> are usually not signs, it is entirely verifable.  One only has to read
> the law and measure the distance between houses (or observe that the
> area is built up with businesses).   These two tasks are entirely within
> the ability of a typical mapper.
>

​the question then is, can we tell (without driving in circles) is if an
existing ​30 mph tag in Boston was implicit or explicit ... to find which
might need fixing



-- 
Bill Ricker
bill.n1...@gmail.com
https://www.linkedin.com/in/n1vux
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Re: [Talk-us] Boston speed limit too Re: Michigan speed limit changes coming soon

[Greg Troxel]

Also, we do have the implicit 30 mph tagged on many roads.   While there
are usually not signs, it is entirely verifable.  One only has to read
the law and measure the distance between houses (or observe that the
area is built up with businesses).   These two tasks are entirely within
the ability of a typical mapper.



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[Talk-us] weeklyOSM #337 The Maps that-made 2016 extraordinary

[weeklyteam]

The German team produced a review of the amazing maps in the year of 2016, here 
we have the English version of the same review of the maps from WeeklyOSMs 
'maps' category.

Here is our choice for you: maps in weeklyOSM 2016

http://www.weeklyosm.eu/end-of-the-year-review-2016

Have a lot of fun!


weeklyOSM?
who?: https://wiki.openstreetmap.org/wiki/WeeklyOSM#Available_Languages 
where?: 
https://umap.openstreetmap.fr/en/map/weeklyosm-is-currently-produced-in_56718#2/8.6/108.3
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Re: [Talk-us] Boston speed limit too Re: Michigan speed limit changes coming soon

[Bill Ricker]

Tod - "Makes sense to have the OSM tagging model the real world in this
regard. If we had that the a local mapper could update one value on the
administrative boundary and all the roads without explicit maxspeed tagging
would be covered."

Agreed. There isn't a better community than OSM to maintain it.
If our allied open routing project provides a side repository outside the
main OSM but linked (the way e.g. our Notes are) I would happily update
that.
Without that being created, OSM admin boundary seems the right place.

​--
Bill Ricker
bill.n1...@gmail.com @n1vux

​[ full reply included below so cc: talk-us-mass has full context ] ​

On Sat, Jan 7, 2017 at 2:25 PM, Tod Fitch  wrote:

> > On Jan 7, 2017, at 10:57 AM, Bill Ricker  wrote:
> >
> > On Sat, Jan 7, 2017 at 12:44 AM, Jack Burke  wrote:
> >> Hey, Michigan folks, keep an eye out for some speed limit changes
> [1]
> >
> > We have a different change hitting Boston as of this last week -- the
> > statutory limit on *UNSIGNED* roads/streets in Boston has changed.
> >
> > Statutory limit had been the state's 30mph (thickly settled or
> > business district).
> >
> > One might presume since this changes only unsigned speed, we haven't
> > entered it, so nothing to change.
> > But how is a router to know ?
> >
> > [1] http://www.mlive.com/news/index.ssf/2017/01/75-mph_
> speed_limits_officially.html
> > [2] http://www.mit.edu/~jfc/ma.html
> >
>
> Too bad that every time someone proposes having default values based on
> administrative boundaries it gets shot down like this one [1] was.
>
> Many, in fact, almost all residential streets in my state are not signed
> with speed limits. I think that is true in most states, but the default
> values definitely change with jurisdiction. If I tag them with the default
> legal limit when there is no signing, I run the risk that they are not
> updated if the law changes. And a person driving the street can’t verify
> the value just by looking. If I don’t tag it, then the routing software
> will make an assumption on what the speed is and the assumption is likely
> based on the part of the world the people writing the software live and
> very likely won’t match my area.
>
> To the people who then say that data should be kept outside of OSM as you
> can’t see it on the ground: Point me to a place were a router can get a
> world wide set of administrative based default speed limits. To be viable
> for routers to use it would need to be an open geographical database.
> Funny, that is what OSM is supposed to be.
>
> Makes sense to have the OSM tagging model the real world in this regard.
> If we had that the a local mapper could update one value on the
> administrative boundary and all the roads without explicit maxspeed tagging
> would be covered.
>
> [1] https://lists.openstreetmap.org/pipermail/tagging/2016-
> October/030330.html
>
>
>
​
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[Talk-us] Boston speed limit too Re: Michigan speed limit changes coming soon

[Bill Ricker]

On Sat, Jan 7, 2017 at 12:44 AM, Jack Burke  wrote:
> Hey, Michigan folks, keep an eye out for some speed limit changes [1]

We have a different change hitting Boston as of this last week -- the
statutory limit on *UNSIGNED* roads/streets in Boston has changed.

Statutory limit had been the state's 30mph (thickly settled or
business district).

One might presume since this changes only unsigned speed, we haven't
entered it, so nothing to change.
But how is a router to know ?

[1] 
http://www.mlive.com/news/index.ssf/2017/01/75-mph_speed_limits_officially.html
[2] http://www.mit.edu/~jfc/ma.html


-- 
Bill Ricker
bill.n1...@gmail.com
https://www.linkedin.com/in/n1vux

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