Module F - Slide 2


Previous modules presented instruction on how APS installations should be designed to provide the information to the pedestrian. In review, the basic principles are to provide information about the presence and location of pushbuttons, information about the WALK indication, and information about which crossing is being signaled.

In the design and installation of APS, one recurring theme of this instruction, and the research, is that there the APS sounds should be quieter and there should only be as much sound as needed in the environment to provide the information. Too much sound can make it more difficult for a person who is blind to hear the traffic.