Determine the adjusted saturation flow rate for a lane group comprised of one lane for the through movement, under the following conditions:
Base rate = 1900 pc/h/ln
Lane width = 11 ft
Heavy vehicles = 4% of the traffic stream
Approach grade = +3%
No on-street parking
No bus stops
Bicycle and pedestrian traffic conflicting with this lane group is negligible
Intersection is in a central business district
What will be an ideal response?
Use Equation 10.8 to determine saturation flow rate:
so = 1900 (pc/h/ln)
N = 1
fw = 1.00 (Table 10.7)
fHV = use Equation 10.9:
fg = use Equation 10.10:
fp = no on-street parking, 1.00
fa = 0.90
fbb = no bus stops, 1.00
fLu = one lane, 1.00
fRT = 1.0
fLT = 1.0
fLpb = 1.0
fRpb = 1.0
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