Speed signage advises and reminds the driver of the legal speed limit.
Speed control signs or speed warning signs can be triggered by all vehicles or only those exceeding a pre-determined safe speed.
They should be used to supplement fixed mandatory plate signing and not as a substitute for it.
Our vehicle activated Speed Control Sign has been designed and manufactured to mirror the regulatory maximum speed limit sign (Diag 670) described in the TSR&GD (TSRGD).
The unique manual switching facility on this LED Speed Sign allows the user to instantly change both the detection speed and speed display in one operation to suit the existing limit on the road. Therefore, depending on client requirements, the sign can display “30” when positioned on a 30mph road, then switched to “40” when repositioned on a 40mph road.
The light output of the directional LED display is controlled via the inbuilt photo cell, achieving best performance whatever the light or weather conditions.
This road safety flashing speed limit sign can also be radar activated and utilised for data collection.
The TWM Speed Signs are automatically and immediately activated by the speed or presence of a vehicle approaching a change in the speed limit, an area prone to higher-than-average collisions, or a hazard that commands improved driver caution.
Designed to mirror and support mandatory speed limit signage, the addition of manual switching differentiates this model from any other. It enables users to adjust the detection speed and display formats according to changeable speed limits or conditions.
Whether users require a flashing speed warning sign they can change at varied times of the day, use in temporary placements with different speed limits, or activate signs during heavier traffic flows or higher average speeds, these signage units are uniquely versatile. They are used within:
While these are just some of the many uses for speed signage, we also work with diverse clients and can provide more details or comparable specifications to help you select the most suitable speed management signage for your setting.
Driver complacency and inattentiveness are responsible for many preventable incidents, where speed limits are perceived as optional, unenforced or unnecessary.
Directional Speed Control Signs incorporate LED displays controlled via an inbuilt photocell, which ensures that speed warnings and calculated speeds are clearly shown in any weather or light conditions.
Using radar-activated speed detection also ensures that messaging is accurate. Data about average speeds, vehicle numbers, or responses to warning signs can be collated to assist with ongoing management.
Introducing vehicle-activated signage has been shown to:
If you’d like to learn more about integrating speed control signs into your road or site safety protocol, please contact TWM anytime.
Can flashing Speed Control signs be used instead of conventional fixed signage?
No – in line with the national regulations, displaying mandatory fixed signage advising of the maximum speed limit is essential.
However, the limited effectiveness or lack of enforcement of speed limits often means adding a flashing, responsive and vehicle-activated Speed Control Sign can significantly improve compliance.
How can a Speed Control Sign reduce collision risks?
The simplicity of an LED Speed Control Sign should not be confused with its effectiveness!
Drivers who are shown their speed on a bright, unmissable display, with that speed visible to all surrounding motorists and site users, are considerably more likely to adhere to maximum speeds, take notice of speed limitations, and be conscious of the speed at which they are travelling.

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