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#1 2019-03-20 22:43:32

andrewwiseman
Member
Registered: 2017-02-28
Posts: 122

MapRoulette challenges in Singapore

Hi all,

This is Andrew from Apple's Maps team. A while ago we started working on OSM data issues in Singapore (https://github.com/osmlab/appledata/issues/4) and we recently used our Atlas data analysis tool (https://github.com/osmlab/atlas) to look at a few types of potential issues, such as building-road intersections, crossing roads that aren't connected, roundabouts that are modeled or tagged wrong, and "sink islands" which are places where it's impossible to navigate into or out of, usually due to incorrect one ways or missing roads.

I've posted the results of those checks on MapRoulette, a tool that lets you go through potential issues one by one and either correct them or indicate they are not a problem. I wanted to let you know they are available in case others wanted to try fixing some of them — I also plan to go through some of them myself.

In MapRoulette you can either pick a random task to fix or click on a specific one. If you want to do tasks around a certain location, such as somewhere you are familiar with, you can click “more options” then “load tasks by proximity.”

The checks are:

* Singapore crossing ways: https://maproulette.org/challenge/3913
* Singapore sink islands: https://maproulette.org/challenge/3912
* Singapore connectivity check: https://maproulette.org/challenge/3911
* Singapore incorrect roundabouts: https://maproulette.org/challenge/3915
* Singapore building-road intersections: https://maproulette.org/challenge/3910

Please let me know if you have any questions or feedback.

Thank you,

Andrew

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#2 2019-11-08 02:36:37

andrewwiseman
Member
Registered: 2017-02-28
Posts: 122

Re: MapRoulette challenges in Singapore

Hi all, I've updated the challenges and added a few new ones. Let me know what you think!

Singapore Invalid Turn Restrictions: https://maproulette.org/challenge/9768
Singapore Overlapping Lines: https://maproulette.org/challenge/9771
Singapore Sink Islands & Impossible Routing: https://maproulette.org/challenge/9766
Singapore Malformed Roundabouts: https://maproulette.org/challenge/9769

Thanks!

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#3 2020-02-25 19:41:26

andrewwiseman
Member
Registered: 2017-02-28
Posts: 122

Re: MapRoulette challenges in Singapore

Hi all, I updated the challenges with new OSM data and also put them all in a project, so you can just go there for the latest: https://maproulette.org/browse/projects/39172

They include things like overly sharp road angles, roads that cross but aren’t connected, roads that aren’t connected to anything, overlapping roads, turn restrictions, roads that are close but not connected to others, and other similar issues. I plan to work on some of them myself too. And thanks to EditConscript who already finished a few!

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#4 2020-06-05 02:17:41

andrewwiseman
Member
Registered: 2017-02-28
Posts: 122

Re: MapRoulette challenges in Singapore

Hello,

I updated the Singapore challenges on MapRoulette, and added new ones about lines that cross over the coastline. You can see them all here: https://maproulette.org/browse/projects/39172

Thank you for mapping before, the previous crossing road, sharp angle and overlapping ways checks were finished!

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#5 2020-08-27 06:23:35

zidris
New Member
Registered: 2020-08-06
Posts: 1

Re: MapRoulette challenges in Singapore

Hi Andrew,

I am a new user for OSM. I just check out maproulette and this seems fun.
Will try it out for edits near my area first.

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