[Talk-africa] Fix road problems around Africa with MapRoulette: Angola, Egypt, Kenya, Rwanda, South Africa, Tunisia & Uganda

Andrew Wiseman andrew_wiseman at apple.com
Fri Sep 6 23:45:36 UTC 2019


Hello OSM Africa,

This is Andrew again with Apple’s Maps team. We recently used our Atlas data analysis tool (https://github.com/osmlab/atlas <https://github.com/osmlab/atlas>) to look at a few types of potential issues related to roads and routing, such as overly sharp road angles, roads that cross but don't connect, routing problems, turn restrictions, places where navigation is impossible due to missing connections or potentially incorrect one-way roads, and other similar issues.

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 on one from the map view, and then click Next task: Nearby when you finish it.

We ran the tool for a few countries recently: 

South Africa:

Crossing roads: https://maproulette.org/browse/challenges/8863
Routing problems: https://maproulette.org/browse/challenges/8855
Floating and disconnected roads: https://maproulette.org/browse/challenges/8852
Road connectivity check: https://maproulette.org/browse/challenges/8861
Invalid lanes: https://maproulette.org/browse/challenges/8860
Invalid turn restriction: https://maproulette.org/browse/challenges/8862
Malformed roundabouts: https://maproulette.org/browse/challenges/8859
Road links: https://maproulette.org/browse/challenges/8853

Uganda:

Crossing roads: https://maproulette.org/browse/challenges/8890
Routing problems: https://maproulette.org/browse/challenges/8892
Floating and disconnected roads: https://maproulette.org/browse/challenges/8894
Road connectivity check: https://maproulette.org/browse/challenges/8897
Invalid lanes: https://maproulette.org/browse/challenges/8896
Invalid turn restriction: https://maproulette.org/browse/challenges/8901
Malformed roundabouts: https://maproulette.org/browse/challenges/8899

Kenya:

Impossible routing: https://maproulette.org/browse/challenges/8734
Floating and disconnected roads: https://maproulette.org/browse/challenges/8735
Sharp road angles: https://maproulette.org/browse/challenges/8737
Crossing roads: https://maproulette.org/browse/challenges/8740
Connectivity check: https://maproulette.org/browse/challenges/8741
Invalid turn restrictions: https://maproulette.org/browse/challenges/8742

Rwanda:

Crossing roads: https://maproulette.org/browse/challenges/8850
Routing problems: https://maproulette.org/browse/challenges/8847
Floating and disconnected roads: https://maproulette.org/browse/challenges/8843
Road connectivity check: https://maproulette.org/browse/challenges/8848
Invalid turn restriction: https://maproulette.org/browse/challenges/8845

Egypt:

Impossible routing: https://maproulette.org/browse/challenges/8686
Sharp road angles: https://maproulette.org/browse/challenges/8688
Connectivity problems: https://maproulette.org/browse/challenges/8692
Malformed roundabouts: https://maproulette.org/browse/challenges/8690
Turn restriction problems: https://maproulette.org/browse/challenges/8693
Road links: https://maproulette.org/browse/challenges/8687
Crossing roads: https://maproulette.org/browse/challenges/8694

Angola:

Routing problems: https://maproulette.org/browse/challenges/8399
Floating and disconnected roads: https://maproulette.org/browse/challenges/8398
Road connectivity check: https://maproulette.org/browse/challenges/8402
Invalid turn restriction: https://maproulette.org/browse/challenges/8397
Malformed roundabouts: https://maproulette.org/browse/challenges/8401

Tunisia:

Impossible routing: https://maproulette.org/browse/challenges/8880
Connectivity problems: https://maproulette.org/browse/challenges/8887
Malformed roundabouts: https://maproulette.org/browse/challenges/8889
Turn restriction problems: https://maproulette.org/browse/challenges/8884
Road links: https://maproulette.org/browse/challenges/8881
Crossing roads: https://maproulette.org/browse/challenges/8888

And we have a lot other ones here from before: https://github.com/osmlab/appledata/wiki/MapRoulette-Challenges

Let me know if you have any questions or suggestions. Thanks!

Andrew 



Andrew Wiseman |  Maps | iPhone: +1.202.270.4464 | andrew_wiseman at apple.com <mailto:andrew_wiseman at apple.com>
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