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20 votes
20 votes
Imagine a situation : If people could not see colours, then how would traffic lights work ? Design a traffic system that does not rely on colors.​

User Shevaun
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1 Answer

22 votes
22 votes

Answer:

position

Step-by-step explanation:

Okay, so this already exists

Colorblind people use the position of the light

Red on top, yellow in middle, green on bottom

User Tyler Streeter
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