Zh-hans:Tag:highway=tertiary

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可用语言 — Tag:highway=tertiary
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Public-images-osm logo.svg highway = tertiary
OHZ-K3-Werschenrege.jpg
描述
三级公路,连接县于县、或县与城市的一般干线公路。
元素
不可用於節點可用於路徑不可用於區域未指定是否可用於關係
意义

access=yes

常用组合
维基数据
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状态:通过Page for proposal

highway=tertiary用于标识连接县与县,或县与城市的三级公路。交通网络中常用三级公路来连接小型公路与主要公路。

Using this tag

Outside urban areas, tertiary roads are those with low to moderate traffic which link smaller settlements such as villages or hamlets. For quieter linking roads, consider using highway=unclassified instead. For busier through routes, use highway=secondary or greater instead, although note that outside heavily developed areas there may be no busier sort of road than this.

Within larger urban settlements such as large towns or cities, tertiary roads link local centres of activity such as shops, schools, or suburbs. Use only for roads with low to moderate traffic. For the quietest sort of linking, non-residential road consider using highway=unclassified instead. For busier through routes and main roads use highway=secondary or greater.

Tertiary roads also serve to move traffic away from narrower or quieter streets (represented by highway=residential or highway=unclassified) and onto wider arterial routes (highway=secondary or greater) more suited for heavier traffic. In a planned hierarchy they may be referred to as collector, or distributor roads[1], although this tag is useful for mapping any road network, whether planned or emergent. Use it for roads which either serve at this intermediate level, or simply those that form a more developed or well-used link in the hierarchy than the most minor sort of street or lane if there's not much planning or variation in the area you're mapping.

How to map

Map a tertiary road as you would any other highway=*: draw a simple WayWay along your GPS trace or the centreline of the road if tracing satellite imagery, and tag it with highway=tertiary. To describe the highway in more detail, add more tags.

Some useful combinations:

  • name=名称 公路的名称。如“五一路”。
  • maxspeed=数值 法律规定的最高限速。如“45”(使用公制的国家),或“30mph”。
  • ref=编号 道路的编号。如“G15”、“S210”。
  • loc_name=当地名称 非正式的,或当地对该道路的别称。
  • maxweight=数值 重量限制(吨)。如“5.5”。
  • surface=* 道路表面。如“unpaved”(未铺装)。
  • width=数值est_width=数值 道路的宽度(米)。如“4.5”。
  • lanes=数值 所有方向上机动车道的总数。通常为“2”或“1”。如果这条路没有中心线,但容许两辆车无需避让即可相向安全驶过、,那么应当设为“2”。

International equivalence

Country Description more
Australia Other roads linking towns, villages and Points of Interest to each other and the secondary network. In South Australia, roads that are classified as a 'D' route under the Alphanumeric system use this classification. Australian Roads Tagging
Greece Unclassified roads that connect towns, villages and points of interest to each other and classified roads. WikiProject Greece § Road Network
El Salvador Roads whose traffic intensity is between one hundred and five hundred average vehicles per day, have six meter platforms, and are coated with selected local materials and a minimum span of six meters, fifty centimeters on bridges.[2]
UK There is a corresponding official alphabetic classification matching OSM's "tertiary" tag fairly well: 'C' roads. Note that this official designation is rarely seen on signs[3]. For the purposes of mapping, it's normally best to tag distributor roads according to their relative importance in the road hierarchy, as described above.

One rule of thumb for UK roads is that highway=tertiary works well for roads wider than 4 metres (13') in width, and for faster or wider minor roads that aren't 'A' or 'B' roads. In the UK, they tend to have dashed lines down the middle, whereas unclassified roads don't.

Always consider the road in its context too. Where it makes sense to do so, favour keeping the classification continuous on the map over strict adherence to physical criteria.

United Kingdom Tagging Guidelines#UK roads

References

  1. The UK Government Planning Portal Glossary defines these as "[r]oads that distribute traffic and bus services within the main residential, commercial and industrial built-up areas".
  2. http://www.mop.gob.sv/archivo/leydecarreteras/legislacion/LeyDeCarreterasYCaminosVecinales.pdf
  3. The 'C' road classification is rarely publicized and frequently only used by local authorities, for maintenance and planning purposes. In England, responsibility for designating 'C' roads is usually vested in the county councils, each of which decides upon its own numbering system. A 'C' road crossing a county boundary will probably undergo a number change and may cease to be a 'C' road altogether. For more information, see Chris's British Road Directory: The Great C-Road Hunt

See also