Facility at Pedestrian Crossings

There are two types of yellow box installed at the pedestrian traffic signal pole by Transport Department. The first type of yellow box is the tactile unit printed with the words and figure 'Aids for Visually Impaired Persons'. It consists of a vibrating unit located at the bottom of the box for helping the visually impaired persons (VIP) cross the road by means of different vibrating patterns to indicate the prevailing pedestrian signal states. This type of yellow box only provides the status of pedestrian traffic signals. Pedestrian does not need to press the device or its vibrating unit as the system will automatically render pedestrian green signal according to the time schedule. The second type of yellow box is the tactile unit with pushbutton function. The pushbutton shows a 'palm' symbol on the surface of the yellow box and a red display at the upper part of the box. When the pushbutton is touched by the pedestrian (including VIP and non-VIP), a visual and audible acknowledgement signals will be displayed and emitted by the unit respectively. The traffic signal controller will render the green signal to the pedestrian as soon as possible. Most of the second type of yellow box also consists of a vibrating unit for VIP.

For more details, please see Electronic Audible Traffic Signals.