Problem:
Part 1: Suppose the critical lane volumes are found to decrease to 1000 vph. Should we change cycle length C to be less than 60sec?
Part 2: Suppose again, there is 15 minutes in the hour where the peak flow is heavy so that the PHF = 0.95 and we want to accommodate the drivers during this time. What is the Cycle length?
Note: Provide thorough explanation of every question given in the problem.