An existing Class III two-lane highway is to be analyzed to determine the level of service in each direction given the following information:
Peak hourly volume in the analysis direction: 900 veh/h
Peak hourly volume in the opposing direction: 720 veh/h
Trucks: 10% of total volume
Recreational vehicles: 2% of total volume
PHF: 0.94
Lane width: 12 ft
Shoulder width: 2 ft
Access points per mile: 30
Terrain: level
Measured free flow speed: 45 mi/h
No passing zones: 60% of analysis segment length
What will be an ideal response?
Step 1: Estimate heavy vehicle adjustment factor, use Equation 9.11:
Step 3: Estimate ATS. Use Equation 9.13. Adjustment factors for no-passing
zones interpolated from Table 9.20.
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