School Safety Zone 20 mph Signs

20mph When Lights Flash Signs in Cumbria

20mph flashing lights sign

Creating 20mph zones around school zones using a temporary "When Lights Flash" sign is a clever method of reducing vehicle speeds around schools without affecting traffic at other times of the day.

Research indicates that 20mph zones reduce vehicle speeds by 9mph on average and reduce accident rates by up to 60%.

The nature of a temporary 20mph zone means that drivers can select an appropriate speed depending on the road circumstances, meaning they could be more likely to obey the reduced speed limit when it applies - around the critical periods for child road safety at the beginning and end of the school day.

Operation of the 20mph zone sign is controlled by our hugely popular, Bluetooth programmable, Microtima Series 5 Timer.

This quick video demonstrates the lights in action at our production facility, before delivery to Cumbria Council:

Temporary 20mph School Safety Zone Sign from Daniel Johnson on Vimeo.


Sheriff Technologies is a Trade Name of DHF Products Ltd.

Units 2 & 3, Whinfield Industrial Estate, Rowlands Gill, NE39 1EH.

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Accounts: +44 (0)191 230 4422

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