What is the primary purpose of marking restrictions like "no waiting" and "no stopping" on roadways?

The primary purpose of marking restrictions such as "no waiting" and "no stopping" on roadways is to ensure traffic flow and safety. These markings are implemented to minimize obstructions in traffic lanes, which can lead to smooth vehicular movement and prevent accidents. By prohibiting waiting or stopping in designated areas, these restrictions help keep intersections clear, facilitate emergency vehicle access, and maintain the overall efficiency of road use. This is particularly important in urban areas where traffic density is high and the potential for collisions is greater. Keeping traffic flowing helps reduce delays and contributes to a safer environment for all road users, including vehicles, cyclists, and pedestrians.