Tag:usage=transmission

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Public-images-osm logo.svg usage = transmission
Description
Features involved in long distance carriage of fluids or goods and connecting to more specific and local usage networks. It excludes vehicle carriage, referring to transportation. Edit or translate this description.
Group: Man made
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasshould not be used on relations
Useful combination
Status: approvedPage for proposal

Transmission paths lead fluids or goods from production (or intake) sites to storage or consumption places for further multiple usages or processing. Point here is to map large infrastructure moving important amounts on long distances. This could be compared to transmission power grids versus distribution smaller grids.
At this stage of network architecture, fluids or goods aren't dedicated to a particular usage and that's what usage=transmission is intended for. Domestic use, irrigation or further processing may apply on smaller connecting networks in repartition facilities located on edges of both transmission and specific use networks.

The path is intended for transmission, and this value excludes car, truck or boat carriage. See usage=transportation for a more appropriate value.

How to map

As this value may apply to a wide range of different activities, for example artificial Waterways, please refer to each domain pages for a more detailed tagging overview.

Draw a line on the network edge (which can be a pipeline, a river, whatever) and put usage=transmission on it.

Examples

Waterways

Photo Tagging Note
Waterway transmission.png waterway=canal

tunnel=flooded
usage=transmission
location=underground
operator=...

A free flow waterway in a tunnel allowing water to go under a hill.
waterway=pressurised

tunnel=flooded
usage=transmission
location=underground
operator=...

A pipe flow tunnel carries the water out of the dam toward another place. As it's not for power production, the tunnel taking out water of a lake is a transmission way.