One Way Access Speed Hump

Road spike speed hump

Assert one way access road spikes are available in either 1000mm or 500mm heavy duty steel modules. Each module has individual retracting teeth. As a vehicle approaches from the correct direction, the teeth retract, allowing the vehicle to pass freely. When approached from an unauthorised direction, the teeth lock up denying access and risking almost certain tyre damage. A high visibility lime green powder coat finish and an ultra-low profile construction ensures adequate vehicle clearance.

  • Deters access from unauthorised direction
  • All teeth operate independently of each other
  • Low profile design ensures legal vehicle clearance
  • Soft approach due to low ramp angle
  • Supplied with all fixings – 8 per metre, v4 per 1/2 metre
Product Colour:

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Bitumen or concrete


Heavy duty steel


8 per metre (supplied) 4 per 1/2 metre (supplied)


Heavy duty steel
Weather resistant
Installation services
Checker plate non-slip surface

Technical Drawing

Specification (Matting)


1000mm and 500mm modules


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