Abstract: Wheel chock systems for use at loading docks and other locations are described herein. In some embodiments, the wheel chock systems can include a wheel chock assembly that is positionable in contact with a vehicle wheel to restrain the vehicle at a loading dock. The wheel chock assembly can include a sensor target, and a corresponding sensor can be mounted to, for example, an outer wall of the loading dock or a wheel chock storage cradle mounted to the outer wall. In operation, the sensor can emit a wireless signal (e.g., an electromagnetic signal) that is reflected off of the sensor target and received back by the sensor when the wheel chock has been positioned in a blocking relationship relative to the vehicle wheel to restrain the vehicle at the loading dock. The sensor can be operably connected to a loading dock signal system (e.g., a signal light system) that displays appropriate signals to loading dock personnel based on detection of proper wheel chock placement.