An old urban four-lane freeway has the following characteristics: Lane width: 11 feet Interchange density: 1 per mile Peak Hour Factor (PHF): 0.9 Commuters only No lateral clearance 5% trucks, no RVs Rolling terrain a) What is the capacity of this freeway? b) The present peak-hour volume on this facility is 3,650 vehicles per hour (veh/h). The anticipated growth in traffic is expected to be 0.5% per year. To avoid breakdown (Level of Service F), in how many years will substantial improvements be needed to this facility?