Surface Mounted Flow Plates control traffic flow to one direction and are designed to work in groups to ensure full lane width coverage. As a vehicle passes over the plate, the flap is pushed over allowing the vehicle to pass. Once the vehicle has passed the flap returns to its upright position.
The Surface Mounted Flow Plate is constructed from heavy duty steel which is then galvanised to ensure longevity and coated yellow to maximise visibility.
The AUTOPA One Way Flow Plate is not recommended for HGV use.