The system may include a wheel chock that raises the primary coil into alignment with the secondary coil when a tire enters the wheel chock.

Although the wheel chock is connected to a track, much of the force exerted by the wheel against the chock can be transmitted directly from the chock to the driveway.

In the retracted position, the wheel chock (34) is substantially flat, thereby allowing a truck (36) to be driven over the wheel chock (34).

The wheel chocking member is operable to lock or release a wheel on the carriage.

Lower the vehicle, close the hood, and remove the wheel chock.

The controller operates both the carriage actuating ram and the wheel chocking member.

In the raised position, the wheel chock (34) can be engaged with the wheel (36) of a truck to prevent the truck from driving away from a loading dock.

In some examples, the wheel chock automatically swings between its blocking and release positions in response to the arm simply lowering or raising the chock.

An example wheel restraint includes a restraining arm (30) to anchor a wheel chock (22) to a fixed point at the dock.

b. for each vehicle, a wheel chock of a size suited to the maximum mass of the vehicle and to the diameter of the wheel;

A safety wheel block (100) is disclosed.