| man_made = pipeline
|A tag for major pipelines - gas, water, oil, etc.|
|Used on these elements|
|Tools for this tag|
The pipeline key is used for major pipelines carrying liquids, gases or slurry. The pipeline may be above ground, under water or underground. Common types include gas, water, oil, slurry (mineral ore), sewage.
In some places, the pipelines are underground. For seeing where those pipelines are, there are pipeline markers (see pipeline=marker). You have to draw them as nodes of a pipeline and tag as appropiate tag. The following are examples of pipeline markers:
|man_made||pipeline||All pipelines should have a man_made=pipeline tag|
|The type=* tag is used to identify the material carried in the pipe, if known. Typical values include 'water' (for clean water), 'drain' (for rain water or storm water), 'sewer' (for sewage and 'black' water), telecom (for telecommunication cables). Also oil, gas, slurry, hot_water, heat. Alternatively use any appropriate text for other substances|
|The location=* key can be used to identify if the pipe is 'underground', 'underwater' or 'overground'.|
|bridge||yes||Elevated overground pipelines allowing passage below. See also http://en.wikipedia.org/wiki/Pipeline_bridge|
|operator||*||Use the operator=name for the name of the company operating the pipeline|
|pipeline||valve||The pipeline=valve tag can be used on nodes on the pipeline.|
|pipeline||marker||element in the ground surface wich indicate an underground pipeline very near of it|
In Wikipedia, there is an article about pipelines. Here, there is a pipeline (maybe we could copy this file in the description of this wiki page) that we draw as a line with tags: man_made=pipeline, location=overground, type=oil, operator=BP (for example).
In the first example, the pipeline itself is shown and not in the second. Is there any tag for that?