As a workaround for this editor limitation, it is common to set name=* to a human-readable name with a disambiguating suffix, for example State Route 10 (south). Unfortunately, JOSM assigns the same label to all three relations, making it difficult to select the correct one from a list. The direction=* key can accommodate uncommon directions, such as inner and outer, without necessarily requiring data consumers to add special handling for them.A router can consistently refer to a cross street as "State Route 123 West" even if it is undivided.It is compatible with a wide variety of data consumers and quality assurance tools, because it is consistent with road routes globally and other kinds of routes.In other words, the superrelation should contain only relations, no ways, even if the route travels along some undivided roads. If a highway=* way carries both the northbound and southbound lanes of a route, then the way should be a member of both the northbound and southbound route relations. A " superrelation" that contains the other two relations and has the same tags as them, except for direction=*ĭirection=* is always set to an English value in lowercase, even in French-speaking parts of Canada and Spanish-speaking Puerto Rico.One for the southbound or eastbound lanes, tagged direction= south or east, respectively.One for the northbound or westbound lanes, tagged direction= north or west, respectively.The most robust approach is to create three type= route relations: There are two ways to map route directions. 2 Mapping route directions as destinations.1.1.1 One relation per direction per leg.However, users do expect cardinal directions to be included in guidance instructions during turn-by-turn navigation. A route that has a directional suffix in its number, such as Interstate 35W, still has two route directions associated with it, i.e., "I-35W North".Ĭardinal directions rarely appear on rendered maps, where a single shield would represent both directions of a route at once. For example, if a road carrying a north–south route curves briefly, the signs keep saying "North" and "South" they do not switch to saying "West" and "East" at the curve. It is not a destination (as in some Vienna Convention countries), and it is not necessarily the actual direction that every stretch of road along the route travels. In these countries, the cardinal direction is an intrinsic property of (one side of) the route. The following countries are known to associate cardinal directions with routes: This usage has also carried over to bicycle routes in many areas. In everyday speech, people refer to the "westbound" or "eastbound" lanes of a road. Cardinal directions accompany route shields on all signage, including reassurance markers and guide signs. In several countries, a road route is typically considered to travel north–south or west–east. In South Africa, route markers incorporate cardinal directions in English and sometimes Afrikaans.
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