Traffic lights in Tehran will be equipped with an audio signal system to facilitate the visually impaired, said CEO of Tehran Municipality’s Traffic Control Company. “So far, traffic lights at 100 intersections have been equipped, and the project is estimated to cover traffic lights at all junctions by the end of the year in March 2017,” said Ilnoosh Vaziri, ISNA reported. The audible signals are designed to assist visually impaired people in crossing streets, thus eliminating the need for a human guide, white cane to identify and avoid obstacles or special optical or electronic aids.
