What does a traffic sign specifying "No vehicles except bicycles being pushed" promote?

The specification "No vehicles except bicycles being pushed" promotes limitations for non-motorized transport by allowing only a very specific type of vehicle—bicycles that are not being ridden, but rather pushed—on that particular roadway or path. This sign is designed to enhance safety in areas that may be restricted for larger vehicles, thereby ensuring that pedestrians and those pushing bicycles can navigate safely.

This restriction on vehicles emphasizes the need to control the flow of transport in certain spaces, likely to protect the safety of individuals on foot and maintain a more pedestrian-friendly environment. Therefore, it is carefully designed to limit the presence of non-motorized forms of transportation to bicycles only in a specific, non-riding context, indicating an intention to manage how people and their modes of movement share the space more effectively.