Relation:enforcement

enforcement

Description

Devices that measure and document traffic violations and their coverage zone

Group

Members help

* - device - from - to - force

Statistics

This relation documents different kinds of devices that measure and document traffic violations, such as:

• speed traps
• red light cameras
• distance between vehicles measuring
• weight check (heavy goods vehicles)
• ordinary traffic checks (papers, use of alcohol etc.)

These devices belong to the same class of objects and shall therefore use the same tagging schema with different values. Sometimes a combination of values is required if the device serves more than one function (e.g. both a speed trap and red light camera in one device).

Contents 1 Where to map? 2 Tags 3 Members 4 Examples 5 Rendering 6 See also

Where to map?

Everywhere, except in countries that forbid mapping traffic enforcement installations. If rendering or displaying in a routing software or alerting in a routing software is forbidden anywhere, you can add the information to the map - renderer and routing software will make sure to follow the law. Therefore e.i. routing software shall offer traffic enforcement features as plug-ins, so the user can choose if he wants to install the feature.

Tags

Traffic enforcement devices are not a place you'd want to go and are therefore not an amenity.

Create a single relation for each traffic enforcement device, if there are several, as each can measure different things to vehicles from different directions.

Key	Value	Example	Comment
type	enforcement	enforcement	The type of relation.
enforcement	maxheight / maxweight / maxspeed / mindistance / traffic_signals / check	maxheight	The type of enforcement.
maxheight	number; specify unit if not in metres	4	The maximum height (Only specify if enforcement=maxheight)
maxweight	number; specify unit if not in tonnes	16	The maximum weight (Optional, only specify if enforcement=maxweight)
maxspeed	number; specify unit if not in km/h	60	The maximum speed (Only specify if enforcement=maxspeed)

The "mindistance" enforcement is for following distance. The "check" enforcement is for a checkpoint.

Members

Way or Node	Role	Recurrence?	Comment
	device	one or more	Where the enforcement device is located. For a large device (e.g. an HGV scale), a way or area may be preferred (but must be connected to the same way). Note that the device might not be on the same way as the from (and optional to) nodes, e.g. a speed camera will often be on the side of the road).
	from	one or more	Choose a node on the highway from where the vehicles checked come. If there is a sign "radar controlled" or "traffic signals ahead" put the node where the sign is. if there is no sign, estimate a sensible distance where a driver would need to be warned of the object if driving with allowed speed.
	to	one or more - in some cases optional	Where the enforcement ends. Optional if device and from are on the same way. In this case, the device acts as the to member. Required if device and from aren't on the same way (e.g. speed camera, turn restriction), to make clear in which direction the enforcement occurs.
	force	one or more - optional	A traffic light or barrier that stops you if you violated a rule (because it is dangerous).

Examples

See the original proposal

Rendering

• OSM Blitzermap
• freeroute.fr Radar map (small)

See also

Original proposal