Use the data provided in Problem 9-16 to estimate the ATS in each direction. Base free flow speed: 55 mi/h; lane width: 11 ft; shoulder width: 3 ft; access points per mile: 15.
What will be an ideal response?
Step 1: Equation 9.9, estimate free flow speed. Adjustment coefficients fLS and fA from Tables 9.12 and 9.13, respectively.
Step 2: Estimate heavy vehicle adjustment factor, use Equation 9.11:
Step 3: Estimate demand volume for each direction. Use Equation 9.10.
Step 4: Estimate ATS for each direction. Use Equation 9.13. Adjustment factors
for no-passing zones interpolated from Table 9.20.
a) For 60% traffic (660 veh/h)
b) For 40% traffic (440 veh/h)
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What will be an ideal response?
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