What it means is the white dashed across the road, the riders to slow down and drive to see another car out on the pedestrian crossing in front and that has passed before. See the safe and then drive through.
Meaning a white dotted line across the road, the driver drove slowly. Then look for another car out of the way together. Or pedestrians in the crosswalk at the first sight. Then it safe to drive through.
The meaning is dotted white cross street, the driver to drive slowly. Then make another car out of the joint. Pedestrian crossing in that block or pass. See safe and then drive.