Where is stopping prohibited?

In this case, stopping is prohibited on pedestrian crossings and also up to 5 meters before pedestrian crossings, as this ensures the safety of pedestrians by maintaining clear sightlines and space for crossing. Therefore, option 1 is essential as it encompasses both aspects of safety for pedestrians.

Option 2, stopping immediately behind pedestrian crossings, is also a legitimate concern because it can obstruct visibility for both pedestrians and drivers, but it is not explicitly included in the prohibition on stopping.

Option 3 pertains to stopping over manholes and road covers, which may not be directly related to pedestrian safety but still pertains to the overall flow and safety on the roads.

In summary, all relevant options should be considered to ensure comprehensive adherence to safety regulations on the road, thus justifying a combination of the correct answers.