36 CFR Part 1192 Americans with Disabilities Act (ADA) Accessibility Guidelines for Transportation Vehicles (2016 Non-Rail Vehicle Guidelines)

T704.3.1 Automated Stop Announcements.

Automated stop announcement systems shall provide audible and visible notification of upcoming stops on fixed routes. Stop announcements shall use synthesized, recorded or digitized speech and be audible within non-rail vehicles. Visible components of stop announcements shall consist of signs complying with T702. Signs shall be viewable onboard from all wheelchair spaces and priority seats for passengers with disabilities.