[openstreetmap/openstreetmap-website] Find missing routes algorithm (#1410)

[Harel M]

Hi, I'm not sure to whom I should address it and if this is something that should be here or not, but here goes:
I'm the co-founder and main developer of https://israelhiking.osm.org.il/
This site relay heavily on OSM data.
We have decided to simplify the map editing user experience by writing an algorithm that can find missing routes and add them to the map according to minimal user input (mainly tags we are interested in like highway and colour). 
We still promote the usage of iD as OSM editor for more advanced work.
>From tests we made the algorithm is pretty fast and does a good job in finding missing routes.
Our entire code base is open source and I think the OSM community can benefit a lot from our work.
I'm not a Ruby developer, but I'd be happy to help someone translating the code to whatever language needed.
The main classes that are involved in the process can be seen here:
https://github.com/IsraelHikingMap/Site/blob/master/IsraelHiking.API/Controllers/OsmController.cs
mainly ```PostGpsTrace```
https://github.com/IsraelHikingMap/Site/blob/master/IsraelHiking.API/Services/AddibleGpxLinesFinderService.cs
https://github.com/IsraelHikingMap/Site/blob/master/IsraelHiking.API/Services/GpxLoopsSplitterService.cs
https://github.com/IsraelHikingMap/Site/blob/master/IsraelHiking.API/Services/Osm/OsmLineAdderService.cs
I'd love to hear your intake on this, what it ever done before somewhere else? was it successful? do you think it misses the point in some aspect?


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https://github.com/openstreetmap/openstreetmap-website/issues/1410
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