Question

where are traffic signals placed?what are traffic signals place ​

Answer 1

Answer:

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Explanation:

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Answer 2

it was placed in the middle of an intersection and was powered by overhead trolley wires. A police officer had to manually switch the direction of the lights. However, the credit for the "first electric traffic signal" usually goes to James Hoge. A system based on his design was installed on Aug. 5, 1914, in Cleveland.

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