No matter whether it’s an overland road, a city street, a foot path or a cycleway, you’ll find it tagged with the highway key. Here are some examples of common tags:
highway=residential - a residential road in a cityhighway=motorway - a fast restricted access roadhighway=footway - a foot pathhighway=cycleway - a cyclewayRoads often come with secondary tags, further specifying type or attribute of a road:
oneway=yes says a road is a one waylanes=2 says how many lanes a road hasname=Broadway designates a street nameaccess=private|permissive describes the level of access on a roadservice=parking_aisle|driveway further specifies the type of highway=service