Communication Elements, Signage, and Assistive Listening
Core concepts
This domain covers visible and tactile communication: signage, alarms, assistive listening systems, and telephones. Know when tactile and braille signs are required (permanent rooms and spaces, exit signs, and means of egress), mounting height and location (latch side, 48 to 60 in to baseline of tactile characters), character size and contrast, and the International Symbol of Access.
Assistive listening systems are required in assembly spaces with audio amplification and in certain other spaces. Know the number of receivers required based on seating capacity, hearing-aid compatibility, and signage indicating availability. Fire alarms must provide both audible and visible notification. Telephones must have volume control and TTY or equivalent where required.
Traps in questions
- Assuming all signs need braille; only certain permanent signs do.
- Missing that tactile signs must be on the latch side and within reach range.
- Forgetting that visual alarm coverage depends on room size and use.
- Overlooking that assistive listening receiver counts scale with seating capacity.
Worked example
A 300-seat auditorium has amplified sound. Rule of thumb: determine the required number of assistive listening receivers from the capacity table, confirm hearing-aid compatibility, and post signage. Then verify the visual alarm and exit signage meet tactile and braille requirements.
Study tip
Create a sign inventory table: type, tactile/braille, location, height. Most signage questions are answered by checking the table entry.