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The current traffic light is not friendly for the color deficient.In cities with heavy traffic,it is hard for them to tell which light is on especially at night. Besides, the arrangements of the traffic light vary in different countries,so the color deficient can neither distinguish it by the color nor position. xoLight is a kind of traffic light designed for the color deficient by using LED.Besides the original color and position,the shape of codes will be added on the lights, changing from three circles to an x,a triangle, and a circle,making better affordance.In this way,everyone can easily discriminate between the lights and drive safely.
Kaohsiung City, Taiwan