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The Shape of a Stop Sign Was Chosen for This
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ποΈ History
Question 8
/ 10
80%
0
/
7 correct
β’ 47% nail this
Traffic lights use red on top for what specific reason?
1
Red bulbs last longer up high
2
So colorblind drivers know which light is which
3
To be visible above truck cabs
4
Historical accident, no reason