1. Introduction

The function of electronic audible traffic signals (eATS) is to provide indication to the visually impaired persons (VIPs) on the prevailing pedestrian signals. In late 2004, Transport Department (TD) upgraded the eATS. The new eATS is capable of responding automatically to the ambient noise level. Its output is automatically higher under noisy environment and lower if the environment is quiet. The eATS is equipped with a tactile unit which indicates the prevailing pedestrian signal states by means of different vibrating patterns. The eATS can provide clear audio messages to the VIPs while minimizing the noise nuisance to the nearby residents.

electronic audible traffic signals

 

2. Components of eATS

The eATS consists of the following 3 different components :-

(i) Audible unit; and
(ii) Tactile unit or
(iii) Tactile unit with pushbutton function

 

3. Audible Unit

 

4. Tactile Unit

Tactile Unit

 

5. Tactile unit with pushbutton function

Tactile unit with pushbutton function Tactile unit with pushbutton function

 

6. Using the pushbutton