termine the minimum of the appropriate yellow interval Y in s for a signal phase under the following conditio min approach speed

Question

termine the minimum of the appropriate yellow interval Y in s for a signal phase under the following conditio min approach speed limit 45 mi h approach grade 3 6 downgrade assumed perception reaction time 1 0 sec assumed deceleration rate 11 2 ft sec assumed average vehicle length 20 ft width of intersection to be crossed 56 ft

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