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?

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?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter9: Capacity And Level Of Service For Highway Segments

Section: Chapter Questions

Problem 8P

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Question

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?

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