To improve the map quality in Cape Verde, we propose to make data improvements by sharing challenges, and when appropriate, fixing data errors, and adding or editing certain kinds of geometry.
How to participate
Anyone is welcome to contribute to this project by participating in our MapRoulette challenges. Here is the extended documentation for using MR. Note that sometimes additional instructions are provided within the challenges.
Challenges
Quality check challenges
Click to expand.
- [Not connected highway](https://maproulette.org/browse/challenges/19395)
Ways with tag highway=* must be connected to the rest of the road network to ensure its continuity, e.g. for route planning. When such a way is not connected to another way with tag highway=*, an error is logged.
- [Impossible angle in a highway](https://maproulette.org/browse/challenges/19399)
In general, roads intended for vehicles should be built to maintain proper angles which ensure maneuvers and fluent traffic. Extreme, too sharp angles applied to a way may indicate errors in the road geometry.
- [Invalid Mini-Roundabout](https://maproulette.org/browse/challenges/19405)
Mini-roundabouts are a special kind of roundabout with the same rules as other roundabouts, but present as painted circles rather than physical circles. There might also be a low, fully traversable dome or island that vehicles can drive across. Road traffic flows in one direction around a point in the middle, and the traffic in the roundabout has right-of-way. A mini-roundabout is recorded using the tag highway=mini_roundabout.
- [Polygon has self-intersection](https://maproulette.org/browse/challenges/19394)
The necessary edits will be made to fix cases where the tag on a way indicates that the object is a polygon feature, but the way does not meet the definition of a closed way because it is self-intersecting, or ways in a relation with the same role form a self-intersecting polygon
- [Spiky buildings](https://maproulette.org/browse/challenges/19400)
Buildings with extremely sharp angles will be identified and corrected if needed.
- [Polygon is not closed](https://maproulette.org/browse/challenges/19393)
Features intended to be a polygon should be correctly tagged. When the tag indicates that the object should be a polygon, but the geometry is built out of a NON-closed way, an error is logged.
Geometry challenges
Click to expand.
- [Missing Roads](https://maproulette.org/browse/challenges/21830) (regional challenge for Western Africa)
Data analysis done by TomTom suggests that there should be a road or track here in OSM, but it is missing.
Missing Highway Surface
Click to expand.
- [Add Surface to Highway](https://maproulette.org/browse/challenges/38272)
The goal of this challenge is to identify and add missing surface tags on a road network. We queried OSM for ways with certain highway=* values where the surface tag was missing.
Geographical scope
Data improvements will be made across the whole country.
We will follow the Organised Editing Guidelines for this project. TomTom will not make any edits until two weeks after the project announcement. Here is our Organised Editing page, including a list of our editors.
How to find TomTom's edits
All edits made by our team have the hashtag #tt or #tomtom.
Sources for editing
Maxar Premium Imagery
Esri World Imagery
Bing Maps Aerial
How to reach out
If you have remarks about a specific edit of ours, please drop a comment in the changeset, and we will do our best to respond thoughtfully. Or, you can also:
ghost
commented
1 year ago
Project description
Goal
To improve the map quality in Cape Verde, we propose to make data improvements by sharing challenges, and when appropriate, fixing data errors, and adding or editing certain kinds of geometry.
How to participate
Anyone is welcome to contribute to this project by participating in our MapRoulette challenges. Here is the extended documentation for using MR. Note that sometimes additional instructions are provided within the challenges.
Challenges
Quality check challenges
Click to expand.
- [Not connected highway](https://maproulette.org/browse/challenges/19395) Ways with tag highway=* must be connected to the rest of the road network to ensure its continuity, e.g. for route planning. When such a way is not connected to another way with tag highway=*, an error is logged. - [Impossible angle in a highway](https://maproulette.org/browse/challenges/19399) In general, roads intended for vehicles should be built to maintain proper angles which ensure maneuvers and fluent traffic. Extreme, too sharp angles applied to a way may indicate errors in the road geometry. - [Invalid Mini-Roundabout](https://maproulette.org/browse/challenges/19405) Mini-roundabouts are a special kind of roundabout with the same rules as other roundabouts, but present as painted circles rather than physical circles. There might also be a low, fully traversable dome or island that vehicles can drive across. Road traffic flows in one direction around a point in the middle, and the traffic in the roundabout has right-of-way. A mini-roundabout is recorded using the tag highway=mini_roundabout. - [Polygon has self-intersection](https://maproulette.org/browse/challenges/19394) The necessary edits will be made to fix cases where the tag on a way indicates that the object is a polygon feature, but the way does not meet the definition of a closed way because it is self-intersecting, or ways in a relation with the same role form a self-intersecting polygon - [Spiky buildings](https://maproulette.org/browse/challenges/19400) Buildings with extremely sharp angles will be identified and corrected if needed. - [Polygon is not closed](https://maproulette.org/browse/challenges/19393) Features intended to be a polygon should be correctly tagged. When the tag indicates that the object should be a polygon, but the geometry is built out of a NON-closed way, an error is logged.Geometry challenges
Click to expand.
- [Missing Roads](https://maproulette.org/browse/challenges/21830) (regional challenge for Western Africa) Data analysis done by TomTom suggests that there should be a road or track here in OSM, but it is missing.Missing Highway Surface
Click to expand.
- [Add Surface to Highway](https://maproulette.org/browse/challenges/38272) The goal of this challenge is to identify and add missing surface tags on a road network. We queried OSM for ways with certain highway=* values where the surface tag was missing.Geographical scope
Data improvements will be made across the whole country.
Announcements
This project was announced in the Talk-africa mailing list:
TomTom organised editing
We will follow the Organised Editing Guidelines for this project. TomTom will not make any edits until two weeks after the project announcement. Here is our Organised Editing page, including a list of our editors.
How to find TomTom's edits
All edits made by our team have the hashtag #tt or #tomtom.
Sources for editing
How to reach out
If you have remarks about a specific edit of ours, please drop a comment in the changeset, and we will do our best to respond thoughtfully. Or, you can also: