[Talk-ca] New MapRoulette challenge to address highway class flip-flops

[Martijn van Exel]

Harald — you can go into your User profile and change the Default Editor setting to ‘Edit just features in JOSM’. This will load just the ‘abnormal’ highway. You can then load more data around if if needed. If you don’t want to change the setting globally you can use keyboard shortcut ‘y’ to trigger this type of loading in JOSM on a task by task basis.

Hope this helps, 
Martijn

> On Feb 4, 2019, at 9:44 AM, Harald Kliems <kliems at gmail.com> wrote:
> 
> Hi Martijn:
> I just tried the challenge, and all of the first four tasks that came up produce an "area too big" error in JOSM (long highways in very rural areas). Is there any way to fix this? Or maybe warn people to not use JOSM for this challenge?
>  Harald.
> 
> On Mon, Feb 4, 2019 at 10:37 AM Martijn van Exel <m at rtijn.org <mailto:m at rtijn.org>> wrote:
> Hi all, 
> 
> Per Matthew Darwin’s request on Twitter, my team prepared a MapRoulette challenge for ‘highway class flip-flops’. What does this mean? Consecutive ways that have a suspicious change from one highway= value to another and then back to the former. This happens sometimes when mappers change the highway= value for some way but miss a bridge somewhere. An example is https://www.openstreetmap.org/way/53514358#map=19/51.23309/-116.65373 <https://www.openstreetmap.org/way/53514358#map=19/51.23309/-116.65373> where the bridge is marked as residential but the two adjoining ways are marked as unclassified.
> 
> You can find the challenge at https://maproulette.org/mr3/challenge/3588 <https://maproulette.org/mr3/challenge/3588> and your feedback is very welcome.There are ~300 tasks.
> 
> If you have other ideas for challenges to clean up / review existing data let me know and we can discuss.
> 
> Martijn
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