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On the two lane carriageways, roadworks restrict the width of both traffic lanes, generating a bottleneck to the traffic flow. The maximum flow per lane on the unobstructed carriageway is 2100 vehicles per hour whilst on the section under repairing the maximum flow per lane reduces to 1200 vehicles per hour. When stationary, vehicles are spaced at average distance headway of 6 m. It may be assumed that there is a linear relationship between speed and density. When the traffic flow approaching the roadworks is 3500 vehicles per hour, calculate:
1the speed of the traffic system a considerable distance in advance of the bottleneck;
2the speed of the traffic stream immediately before the commencement of the bottleneck; and
3the speed of the shockwave foamed by the bottleneck.
Write a C program that calculates the factorial of the number from 0 to the integer N, which is not greater than 10
The headloss per meter for galvanized iron pipe (.02 m diameter) hL= 0.110m and for (0.15m diameter) hL= 0.490m. Determine the trade off between the cost and the head loss (hL).
Plot a graph showing the discarge per unit width per unit width q for various depths if the specific energy remains constant at this value. What will be the depth when the discharge is 1/3 of the discharge at critical depth
The sag curve has a 70 mph design speed and G1 = -6% G2=+3%. Determine the minimum necessary clearance height of the overpass and the resultant elevation of the bottom of the overpass over the PVI.
How many trips would one rubber-tired Herrywampus have to make to backfill a space with a geometrical volume of 5400 cubic yard. The maximum capacity of the machine is 30 cubic yard (heaped), or 40 tons.
a rectangular reinforced concrete beam carries service loads on a span of 20 ft as shown. use f'c = 3000psi and fy = 60000 psi; b = 14.5 in, h = 26 in, and reinforcing is three number 10 bars.
A rectangular channel carries a discharge of 2.00 m3/sec per meter of channel width over a weir crest that is 1.4 m in height. The energy grade line upstream of the weir measure 2.7 m above the channel bottom.
Determine the maximum theoretical speed that may be achieved over a distance of 60 m by a car starting from rest, knowing that the coefficient of static friction is 0.80 between the tires and the pavement
The measurements of the nominal shear strength (in kN) for a sample of 15 prestressed concrete beams are as follows: 580 400 428 825 850 875 920 550 575 750 636 360 590 735 950
A chemical mixing basin is to be designed to blend chlorine and treated wastewater. The basin flow is 700 gallons per minute and the basin dimensions are 5 feet by 5 feet by 5 feet water depth.
It accelerates wibt constant tangential accleration of at= 0.75 m/s^2. Determine the distance traveled and the time elasped when the magnitude of the car's totale acceleration is 0.9 m/s^2.
A turbine located 225 m below the water surface at intake, carries a flow of 3.5 m^3/s. The head loss in the pipeline leading to it is 10 m. Find the power (kW) delivered by the turbine if its efficiency is 92%.
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