Where is parking not allowed in relation to road signs?

Parking is not allowed where the road sign indicates for a very important reason: road signs are established to manage traffic flow and ensure safety on the road. Various signs designate specific areas where parking is prohibited to prevent obstruction of traffic, ensure visibility for other drivers, and maintain the overall function of the roadway. For instance, signs may specify no parking zones near intersections, fire hydrants, or areas with heavy pedestrian traffic. Adhering to these signs is crucial for preventing accidents and maintaining orderly traffic.

The other scenarios, while they might pose their own issues regarding parking regulations, do not universally convey the same definitive instruction as road signs. For example, while parking on the shoulder of the road and near traffic lights can be problematic, they may sometimes be permitted depending on local rules or the specifics of the area. Similarly, designated parking zones are, by definition, places where parking is allowed, contrary to the question's context. Understanding the role of road signs is key to complying with local traffic laws and ensuring safety for all road users.