This additional feature of traffic management comes lodged in a rectangular yellow box with the disabled icon — and, if you are thinking about it, the box doesn’t glow yellow. It’s an auditory signal that helps the differently-abled cross busy junctions through recorded messages. The city traffic police have started installing these auditory signals at busy pedestrian crossings. The team says that the signals here incorporate the elements of synchronisation, voice and time in the equipment. As the auditory signals can be operated only by traffic police personnel, much of the success of the initiative depends on them.

Source: The Hindu September 01, 2017 12:16 UTC