[talk-au] MapRoulette Challenges

[Marian Poara]

We've put the challenge with the wrong lane count on invisible and we will 
improve the output (especially the situation where the count doesn't consider 
bicycle lanes) and reupload it. Thanks for the feedback!
Best regards!
Marian Poara,
Telenav

From: Horea Meleg
Sent: Friday, February 22, 2019 3:11 PM
To: Marian Poara 
Cc: #eu-TLsMapAnalyst 
Subject: FW: [talk-au] MapRoulette Challenges



From: Andrew Davidson mailto:thesw...@gmail.com>>
Sent: Friday, February 22, 2019 12:53 PM
To: Horea Meleg mailto:horea.me...@telenav.com>>
Cc: talk-au@openstreetmap.org<mailto:talk-au@openstreetmap.org>
Subject: Re: [talk-au] MapRoulette Challenges

On Fri, Feb 22, 2019 at 8:35 PM Horea Meleg 
mailto:horea.me...@telenav.com>> wrote:
•  Fix wrong lane count in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3258<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fmaproulette.org%2fmr3%2fchallenge%2f3258&c=E,1,qVp6j7EtYSA6mtieowazZOYFsejXM2ZR36DUGjf4C8zB2TUwbaz0vwSsjAaPODOrBu4HDur3xj8_CUY3QMd0r4QgG9B5_dBakE2WixDd503oKU65GA8CjOM,&typo=1>

Just to let you know, your test for correct lane count doesn't appear to take 
into account bicycle lanes. For example:

https://maproulette.org/mr3/challenge/3258/task/5887988<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fmaproulette.org%2fmr3%2fchallenge%2f3258%2ftask%2f5887988&c=E,1,Ly9ZIP4Ts2GQNliyrDkGsk364TQB4eFYDLnG8gtL8qQH_WydG86bqby48pmO78nepLRO7v0TxwmbkVKMC9PyfqXY3XbhFolZGsB4EWlf8dIQnnsBog,,&typo=1>

There are two vehicle lanes and one bike lane so lane=2

see:

https://wiki.openstreetmap.org/wiki/Lanes

and

https://wiki.openstreetmap.org/wiki/Key:lanes

The kicker is that the wiki is not clear on how you indicate how many bike 
lanes there are. The lanes proposal had cycleway:lanes=* but the example on the 
key:lanes page uses bicycle:lanes=* [1] and vehicle:lanes=* [2], so there isn't 
an easy way to parse the tags to figure if the lane count is correct.

Maybe the thing to do is make a decision about how we want to tag cycle lanes 
and then include that in the challenge instructions.

[1] This indicates the legal access for bicycles but not what the 
infrastructure is eg: designated may be a lane shared with buses (UK).

[2] This doesn't make sense because vehicle=* is the access for all vehicles 
(which includes bicycles). I think what they meant to use was 
motor_vehicle:lanes=*
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Re: [talk-au] MapRoulette Challenges

[Andrew Davidson]

On Sat, Feb 23, 2019 at 10:46 AM Graeme Fitzpatrick 
wrote:

> & then when you add parking & bus lanes into the mix, I'm totally
> confused! :-)
>

You're not alone. I tend to say away from lane mapping 'cause I think it's
going to do my head in.



> I understand (I think) that we mark parking lanes but they're not counted,
> but bike & bus lanes are?
>

Bike lanes are not counted. The wiki page
https://wiki.openstreetmap.org/wiki/Key:lanes is fairly clear.  Parking
lanes get tagged with the parking:lane key
https://wiki.openstreetmap.org/wiki/Key:parking:lane



> So if we look at
> https://www.google.com/maps/@-28.0444106,153.4348424,44m/data=!3m1!1e3
> then south is parking; bike; bus; 2 x through; 1 turn = 5 lanes; while
> north is parking; bike; bus; 2 x through = 4
> Is that correct?
>
>
I had a go at tagging the northbound:
https://www.openstreetmap.org/way/672433705

and southbound:
https://www.openstreetmap.org/way/672433702

Needs a review because you can guarantee that you'll make a mistake if you
tag something then point everyone on the mail list at it ;-)

Also this isn't the only way to tag it, I could have used the vehicle:lanes
tag rather than the access:lanes tag to get the same outcome.

You can see how hard it would be to programmatically check if the number of
*:lanes is consistent with the lanes=* tag



> Thanks
>
> Graeme
>
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Re: [talk-au] MapRoulette Challenges

[Graeme Fitzpatrick]

& then when you add parking & bus lanes into the mix, I'm totally confused!
:-)

I understand (I think) that we mark parking lanes but they're not counted,
but bike & bus lanes are?

So if we look at
https://www.google.com/maps/@-28.0444106,153.4348424,44m/data=!3m1!1e3
then south is parking; bike; bus; 2 x through; 1 turn = 5 lanes; while
north is parking; bike; bus; 2 x through = 4
Is that correct?

Thanks

Graeme
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Re: [talk-au] MapRoulette Challenges

[Andrew Davidson]

On Fri, Feb 22, 2019 at 8:35 PM Horea Meleg  wrote:

> §  Fix wrong lane count in Australia & New Zealand:
> https://maproulette.org/mr3/challenge/3258
>
>
Just to let you know, your test for correct lane count doesn't appear to
take into account bicycle lanes. For example:

https://maproulette.org/mr3/challenge/3258/task/5887988

There are two vehicle lanes and one bike lane so lane=2

see:

https://wiki.openstreetmap.org/wiki/Lanes

and

https://wiki.openstreetmap.org/wiki/Key:lanes

The kicker is that the wiki is not clear on how you indicate how many bike
lanes there are. The lanes proposal had cycleway:lanes=* but the example on
the key:lanes page uses bicycle:lanes=* [1] and vehicle:lanes=* [2], so
there isn't an easy way to parse the tags to figure if the lane count is
correct.

Maybe the thing to do is make a decision about how we want to tag cycle
lanes and then include that in the challenge instructions.

[1] This indicates the legal access for bicycles but not what the
infrastructure is eg: designated may be a lane shared with buses (UK).

[2] This doesn't make sense because vehicle=* is the access for all
vehicles (which includes bicycles). I think what they meant to use was
motor_vehicle:lanes=*
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[talk-au] MapRoulette Challenges

[Horea Meleg]

Hi everyone!

To make OpenStreetMap more navigable and accurate in guidance, Telenav mapping 
team is planning to process available open data and share it with the community 
using MapRoulette Challenges.

For this purpose we extracted from Perth local data, traffic signals which are 
not present in OSM. You can find it here:
?  Perth traffic signals: https://maproulette.org/mr3/challenge/3723

As some of you guys may already know, we created challenges before. Some of 
them are already finished and we thank your involvement and effort. We still 
have many in progress, and if you want to contribute you can find those here:
?  Fix dead ends in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3256
?  Fix highway flip-flops in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3257
?  Fix wrong lane count in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3258
?  Fix highway link type in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3259
?  Fix one way flip-flops in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3261
?  Fix ramp destination conflicts in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3263
?  Fix typos in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3264
?  Bad tag values for name in Australia & New Zealand: 
https://maproulette.org/mr3/challenge/3316

All necessary information can be found in challenges description. Also, for 
some of them, description contains GitHub tickets for challenges.

We'd love any input and advice!

If you have any questions or comments, please let me/us know.

Thanks!

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[talk-au] MapRoulette challenges

[Martijn van Exel]

Hi folks.

The Telenav team continuously runs a series of data integrity checks on OSM 
data that we’re interested in. The OSM wiki has an overview [1].

Now some of these are easy fixes, and that means they make interesting 
MapRoulette challenges. For example here’s a challenge that highlights 
suspicious ’name’ values, such as values that contain a semicolon or comma: 
https://maproulette.org/mr3/browse/challenges/3316 
 It spans both Australia 
and New Zealand and has a total of 271 tasks.

I invite you to try it, especially if you haven’t used MapRoulette before. We 
can deploy more of them if there’s an appetite. 

Anyone can create challenges on MapRoulette, so if there’s something you want 
fellow mappers to look at, feel free to set it up. I am happy to assist.

Happy Mapping — 

Martijn

[1] https://wiki.openstreetmap.org/wiki/Telenav/Integrity_Checks 


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