Final answer:
The steady "DON'T WALK" or upraised palm signal on pedestrian signals means that pedestrians must not enter the roadway toward the signal. However, pedestrians already in the intersection facing the signal may continue to the nearest sidewalk, traffic island, or safety zone.
Step-by-step explanation:
A steady "DON'T WALK" or upraised palm signal on pedestrian signals means that pedestrians must not enter the roadway toward the signal.
However, pedestrians who are already in the intersection facing the signal may continue to the nearest sidewalk, traffic island, or safety zone. Therefore, the correct choice is option 2: Pedestrians already in the intersection facing the signal may continue to the nearest sidewalk, traffic island, or safety zone.