OpenStreetMap
Zone 30 speed limits: using OSM next to "Verkeersborden Vlaanderen" --> posted in OSM forum
Апублікавана карыстальнікам orchi_osm 27 Чэрвень 2021 на мове EnglishMy post Zone 30 speed limits: using OSM next to “Verkeersborden Vlaanderen” had already some helpful replies.
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