At all locations in the City where official traffic-control signals are installed, pedestrians, except where directed otherwise by pedestrian-control signals installed under § 576-1102, shall obey the directions of those traffic-control signals, as follows:
A. When facing a green signal, a pedestrian may proceed across the roadway within a crosswalk.
B. When facing a steady yellow signal, a pedestrian shall not start to cross the roadway.
C. When facing a steady red signal, a pedestrian shall not enter the roadway.