Chapter 3.2, Problem 26E

To determine

(a)

To calculate:

The minimum time the yellow light should be on, no matter what the width of the crossing street.

To determine

(b)

To calculate:

The lengths of the yellow light times compare when the crossing street for one signal is 10 feet wider than the crossing street for another signal.

To determine

(c)

To calculate:

The value of $n\left(70\right)$. Also explain in practical terms what the answer means.

To determine

(d)

To calculate:

The crossing street width that would warrant a 5-second yellow light.