mapcomplete/Docs/Layers/speed_camera.md

[//]: # (WARNING: this file is automatically generated. Please find the sources at the bottom and edit those sources)

# speed_camera

Layer showing speed cameras

 - This layer is shown at zoomlevel **12** and higher

## Table of contents

1. [Themes using this layer](#themes-using-this-layer)
2. [Basic tags for this layer](#basic-tags-for-this-layer)
3. [Supported attributes](#supported-attributes)
  - [images](#images)
  - [maxspeed](#maxspeed)
  - [ref](#ref)
  - [camera_direction](#camera_direction)
  - [leftover-questions](#leftover-questions)
  - [move-button](#move-button)
  - [lod](#lod)

## Themes using this layer

 - [maxspeed](https://mapcomplete.org/maxspeed)
 - [personal](https://mapcomplete.org/personal)
 - [surveillance](https://mapcomplete.org/surveillance)

## Basic tags for this layer

Elements must match the expression **<a href='https://wiki.openstreetmap.org/wiki/Key:highway' target='_blank'>highway</a>=<a href='https://wiki.openstreetmap.org/wiki/Tag:highway%3Dspeed_camera' target='_blank'>speed_camera</a>**

[Execute on overpass](http://overpass-turbo.eu/?Q=%5Bout%3Ajson%5D%5Btimeout%3A90%5D%3B%28%20%20%20%20nwr%5B%22highway%22%3D%22speed_camera%22%5D%28%7B%7Bbbox%7D%7D%29%3B%0A%29%3Bout%20body%3B%3E%3Bout%20skel%20qt%3B)

## Supported attributes

**Warning:**,this quick overview is incomplete,

| attribute | type | values which are supported by this layer |
-----|-----|----- |
| <a target="_blank" href='https://taginfo.openstreetmap.org/keys/maxspeed#values'><img src='https://mapcomplete.org/assets/svg/search.svg' height='18px'></a> <a target="_blank" href='https://taghistory.raifer.tech/?#***/maxspeed/'><img src='https://mapcomplete.org/assets/svg/statistics.svg' height='18px'></a> [maxspeed](https://wiki.openstreetmap.org/wiki/Key:maxspeed) | [pnat](../SpecialInputElements.md#pnat) |  |
| <a target="_blank" href='https://taginfo.openstreetmap.org/keys/direction#values'><img src='https://mapcomplete.org/assets/svg/search.svg' height='18px'></a> <a target="_blank" href='https://taghistory.raifer.tech/?#***/direction/'><img src='https://mapcomplete.org/assets/svg/statistics.svg' height='18px'></a> [direction](https://wiki.openstreetmap.org/wiki/Key:direction) | [direction](../SpecialInputElements.md#direction) |  |

### images
This block shows the known images which are linked with the `image`-keys, but also via `mapillary` and `wikidata` and shows the button to upload new images
_This tagrendering has no question and is thus read-only_
*{image_carousel()}{image_upload()}*

### maxspeed

The question is `What is the maximum speed allowed at this speed camera?`
*The maximum speed allowed is {canonical(maxspeed)}* is shown if `maxspeed` is set

### ref

_This tagrendering has no question and is thus read-only_
*The reference number of this speed camera is {ref}*

This tagrendering is only visible in the popup if the following condition is met: ref~.+

### camera_direction

The question is `In which geographical direction does this camera film?`
*Films to a compass heading of {direction}* is shown if `direction` is set

### leftover-questions

_This tagrendering has no question and is thus read-only_
*{questions( ,)}*

### move-button

_This tagrendering has no question and is thus read-only_
*{move_button()}*

### lod

_This tagrendering has no question and is thus read-only_
*{linked_data_from_website()}*

This tagrendering has labels 
`added_by_default`


This document is autogenerated from [assets/layers/speed_camera/speed_camera.json](https://github.com/pietervdvn/MapComplete/blob/develop/assets/layers/speed_camera/speed_camera.json)