User:Moweez/Speed limit

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Speed Limits

We can attribute a Speed Limit (SL) to segments in WME. We can specify a unique value for each driving direction, and they will show in the app. Default SLs as given in the table below are applicable when there are no other signs present.

Default speed limits (Last update June 2020)

	Region
	Flanders	Brussels	Wallonia	Luxembourg
		*

*As of 1/1/2021, the default speed limit will be 30 km/h in Brussels' urban areas.

Mapping Guidelines

• Adding SLs must be based on certainties. You should be familiar with the area where you add them. Please do not enter SLs when you are not 100% sure.
• Make sure you’re using the correct units for SLs! You can switch between Imperial and Metric by clicking on the tab with the ‘Gear’ icon in the left menu. The Gear icon is only visible when no segment or place is selected.
• Speed limits like are valid up to the next speed limit sign, or next junction (BE only). If no speed limit sign is visible, the SL in Belgium after next junction will be the default again. In Luxembourg, the given speed limit from the last sign still counts. Only speed limit signs with the word "zone" on it are valid for all the streets within the indicated area (see the paragraph below)
• In some cases it may be required to split segments to be able to enter the correct SL. If the change of speed is near to a junction, it might be better not to create an extra segment. Keep the length of segments to at least 20 meters.

Special Cases

Areas with a lowered speed limit

In a zone with a lowered speed limit, the speed limit is valid for a clear demarcated area. In Belgium, a school zone is such a special area, with a speed limit of 30 km/h. These zones can be announced by a permanent/static, or by a dynamic/electronic 'zone 30' sign. In both cases, the SL must be entered as 30 km/h, if no other signs overrule them. Other zones are residential areas and bicycle streets.

Variable speed limit

The set SL might be overruled in real life by other signs, including dynamic signs. However, at the moment, there is no possibility to enter dynamic speed limits. Therefore, enter the SL as if no variable sign is present. We assume people will stIll watch the road and consider the signs while driving.

Average Speed Limit

If there is a stretch where the average speed limit is checked, the segments belonging to the stretch need to have the speed limit specified, as well as the average speed camera checked. See Average Speed Camera for more details.(or explain here?)

Speedhelper script

Tools

• WME Speedhelper helps speedup the input of speed limits.

Install

Discussion on the forum

• WME Route Speeds script to display the average speed and routing time over one or more segments, on different days and times

Install

Description and discusion on forum

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