Audible Information Devices (AID)

Audible Information Devices (AID) are intended to supply blind and low-vision pedestrians with audible information that is equivalent to visual signage for unsignalized crosswalks, sidewalk closures, and detours.

7,485+
pedestrians killed yearly
75%
of pedestrian fatalities occur away from intersections
32 million
adults in the US have vision loss 
7,485+ pedestrians killed yearly 
75% of pedestrian fatalities occur away from intersections 
32 million
adults in the US have vision loss 

Accessibility Requirements

Americans with Disabilities Act (ADA)

Federal law that requires agencies to make public facilities accessible.

  • Agencies must ensure equal access to services and communications
  • Operable parts must be usable with one hand
  • Must not require more than 5 lbs force to operate

 

Learn more about ADA guidelines

Manual for Uniform Traffic Control Devices (MUTCD)

Guidance and standards for traffic control devices on public roadways.

  • AID used in conjunction with an RRFB, flashing beacon, or in-roadway warning lights, should have locator tones
  • AID should not use vibrotactile or percussive indications
  • The message should say, “Warning lights are flashing” (spoken twice)

Learn more about MUTCD guidelines

MEET THE iNX

A compact and compliant AID

  • Supplies blind and low-vision pedestrians with audible information equivalent to visual signage at unsignalized crosswalks
  • Can be used in conjunction with with rectangular rapid flashing beacons (RRFBs) and other flashing crosswalk systems 
  • Self-contained system includes push button, instructional sign, LED light, and speaker 
  • Easy installation and programming with Polara’s Field Service App
  • MUTCD and ADA compliant