A driver approaches a marked pedestrian crossing on a road with one lane per direction. Pedestrians on the sidewalk are immediately next to the carriageway and intend to cross. What speed rule applies in a locality?

1. Do not exceed 30 km/h and be ready to yield
2. Continue at 50 km/h because they are not on the crossing yet
3. Accelerate to clear the crossing first
4. Stop only if a police officer signals