Hi! After a MSF's Missing Maps Mapathon I thought about it, with some premisses: 1-if we don't have good satellite images we can have some Crowdstreet pics as Mapillary or OSC so the we have little idea about how really it is this way 2-It exists the key maxspeed with the subkey advisory, we can know this value because people from the country can say us (What speed do you drive by in... ) and also by things like GPS tracks or the route itselfs (is there any bend? how many degrees? how many length?) We can compliment that with source=survey or source=unofficial, but these values then can be used as an advisory/recommended Speed with apps like osmand or mapsme.
3-Also we can count the points with more accidents to put some hazard key as there are so many accidents, be careful. Example for some track/way maxspeed:advisory=60 source=survey Other example hazard=accident_point count_per_year=30 lenght=3 (km) With overpass or umaps we can have a complete stats map of dangerous roads in any place. Salut i velocitat recomanada (Health and advisory speed) yopaseopor
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