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Device

Speed bump

Speed bump

A speed bump is a traffic calming device that use vertical deflection to slow motor-vehicle traffic in order to improve safety conditions. Varia…

Snow chains

Snow chains

Snow chains are devices fitted to the tires of vehicles to provide maximum traction when driving through snow and ice. Snow chains attach to the…

Runaway truck ramp

Runaway truck ramp

A runaway truck ramp is a traffic device that enables vehicles which are having braking problems to safely stop. It is typically a long, sand- o…

Handsfree

Handsfree

Handsfree is an English term that indicates that a device can be operated without the use of the hands. It is mostly used in the sense of mobile…

Emergency hammer

Emergency hammer

An emergency hammer is a safety device used in vehicles or buildings to break through window glass in an emergency. Many are attached to a cable…

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