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  3. 3-lane freeway reduces to 2 lanes total flow in se

3-lane freeway reduces to 2 lanes total flow in section = 5000 veh/hr lane saturation flow rate=...

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Civil Engineering

3-lane freeway reduces to 2 lanes

total flow in section = 5000 veh/hr

lane saturation flow rate= 2400 veh/hr

traffic density at A: 10veh/km/ln

shockwabe speed Wab between A nad B = -10km/hr

Find traffic density at B (immediately upstream of the lanereduction) and the stream flows at locations A (far upstream fromlane reduction), B, and C (within the lane reduction)

Answer & Explanation Solved by verified expert
3.7 Ratings (641 Votes)
Pt A is far upstream of lane reduction where we have 3 lanes upstream arrival rate qapproach 5000 vph and this is over three lanes Pt B iis the point where the effects of the lane reduction are felt It is the point far upstream from thelane reduction basically it is the back end of the queue So at A densityA kA 10 vehkmn flow at A qA 5000    See Answer
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