Zh-hans:Tag:highway=primary

连接中小城市的主要道路。

在中国内地和台湾，primary均为省道。

如何绘制

绘制一条primary，您只需绘制一条线。然后为它选择该道路的所有路径，并使用highway=primary标记。当道路没有中央隔离带时，使用oneway=yes标记，并确保路径方向与行驶方向一致，否则请翻转路径方向或使用oneway=-1（建议当路径方向无法翻转时使用）。

如需为道路加入更多信息，请进一步添加下列标签：

• name=名称 - 道路名称。例如：“人民路”；
• maxspeed=数字 - 道路法定最高限速（公里每小时），例如：“60”；
• minspeed=数字 - 表示行驶道路必须达到的最低限速；
• ref=编制名称 - 道路的编制号码，请参见该地区道路的编号系统，例如“S301”；
• loc_name=名称 - 非官方或道路俗称；
• maxweight=数字 - 最大载重限制（吨），例如“49”
• surface=* - 道路路面材质说明。例如“asphalt”（柏油）；
• width=数字 或 est_width=数字 - 道路宽度（米），例如“24.5”；
• lanes=数字 - 道路可用车道数，通常为“2”或“3”；若对向车辆通过不需减速，即使无中央分隔线，仍为「2」。

特殊情况

下列是一些特殊的primary：

• highway=primary_link - 通往或离开道路的连接路。
• bridge=yes + layer=1 - 如果道路上跨街道或水路。
• tunnel=yes + layer=-1 - 如果道路下穿街道或水路。

道路质量

在发达地区，这种道路通常拥有中央隔离带。在基础设施较差的地区，道路质量通常会更差，双向道路可能会未设置中央隔离带。甚至可能包括砾石路。

各地案例

下列为各个国家和地区如何使用标签的比较表，用户应该查阅特定国家的指南以了解更多详细讯息及其他标签。

关于不同地区的特别规定与如何标记各国特定标签的列表，请参见Category:Projects。

国家和地区	使用说明	更多详情
中国大陆	省道或城市主干路
希腊	2nd-tier National Roads	WikiProject Greece § Road Network
意大利	Strada Statale (SS) or Strada Regionale (SR)	The "SSs" are mostly primary. You should also indicate the name of the highway, if it has one, example: highway=primary ref=SS12 name=Strada Statale dell'Abetone e del Brennero "SRs" can be tagged as primary as well, if they have a relevant role in linking two major cities. In general the highway-tag is not representing the administrative class but the importance of the connection. By default this kind of highway is rendered: with a label carrying the "ref" field at lower zoom levels; with the name of the highway at higher zoom levels.
新西兰	State Highways and strategic local roads	All State Highways which do not meet the criteria for highway=trunk. Generally two lanes undivided with limited passing lanes and occasionally one-lane bridges. Strategic local roads are generally the most important roads that are not State Highways. They may be multi-lane divided, or connect major airports, seaports or isolated areas of a city. Examples include South Eastern Highway and Manuaku Road in Auckland, Wairere Drive in Hamilton, and the "Four Avenues" in Christchurch.
葡萄牙	National Roads (with ref=EN *) and important urban avenues with two lanes in each direction.	National Roads which are not officially declassified. If it's a declassified EN, it may remain a primary if it is of first order (ex: EN 109). In urban centres, important avenues and arteries with two lanes on each way and a physical separator are also primary.
瑞士	Hauptstrasse	There are two kind of "Hauptstrassen" in Switzerland: Example of a signpost for a numbered "Hauptstrasse" Numbered Hauptstrassen: here's the list of numbered "Hauptstrassen" in Switzerland. Use highway=primary ref=number. Example: ref=12. Use multiple numbers separated by semikolon (;) if a segment is used by more than one numbered "Hauptstrasse". Example: ref=6;12 Example of a signpost for a normal primary highway Other "Hauptstrasssen": Use highway=secondary do not specify a number In contrast to other routes, for example cycling or hiking routes, we do not use relations to model numbered "Hauptstrassen" in Switzerland, use ref=number as described above.
美国	Primary highway or arterial road.	U.S. Highways are mostly primary. Some State Roads are also primary, the criterion being either connecting large towns/cities, or being a major road in an urban area. By default this kind of highway is rendered: with a label carrying the "ref" field at lower zoom levels; with the name of the highway at higher zoom levels.
巴西	Via arterial urbana (urban arterial way), estrada estadual (state road), >50-60 km/h
菲律宾	Other national roads that is used as a city/ arterial road rather than an intercity road, or a connector, if it only feeds secondary/tertiary roads. Provincial roads linking municipalities with a major highway. Roads linking a city/municipal center (poblacion) with a major national highway.	National roads usually fall as trunk highways, as they carry most intercity traffic, but some national roads should be tagged primary if they are usually roads serving local traffic in a city/rural area or a connector between two trunk highways, when it feeds roads tagged as secondary or tertiary.
荷兰	Mainly "N-ways" below 400, often called a "provincial way"	See NL:The_Netherlands_roads_tagging
委内瑞拉	It is the regional highways network that connect minor cities and important towns. In cities they are usually the most important avenues, directly connecting large remote areas of the city, or distributing the national traffic through them. Usually used for roads that run parallel to motorways which were the main road before its construction, called "carreteras viejas", depending on the importance of it for that region.