Q2 / Find the number of lane for the design roadway given the following traffic data: ADT = 7651 vehicles/hour in both direction, - 2% grade , K = 12% , D = 55% , Truck 30%, Busses = 10% , Normal growth for design period = 30% , Generated growth = 20%, Development traffic = 250% , Track = 2 PCU , Busses = 3 PCU and Ideal Capacity = 1300 PCU / hour / lane. %3D %3D
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- Q2 / Find the number of lane for the design roadway given the following traffic data: ADT = 7651 vehicles/hour in both direction, - 2% grade , K = 12% , D= 55% , Truck 30%, Busses = 10% , Normal growth for design period = 30% , Generated growth = 20%, Development traffic = 250% , Track = 2 PCU , Busses = 3 PCU and Ideal Сараcity = 1300 PCU / hour / lane.Q3/ Show how to determine the number of lanes for a multilane minor arterial highway is being designed through a mountain rural area required to serve a current ADT of 5000 ypd. The following data should be used in solution: annual growth rate 4%, design, construction period = 22 years, percent of trucks 10 (pc equivalent factor= 2.0), peak hour factor 90% and the directional distribution factor 60%. %3DGiven the data below: Daily Traffic Count Axle Load (Kips) 1000 (single axle cars) 300 (single axle buses) 120 (tandem axle trucks) SN is 5, Pi = 4.2, 22 40 Pr = 3, design life is 20 years, growth rate is 5%, lane distribution factor = 0.45 %3D Calculate the ESAL.
- If Vf = 2327 VPH with 9% trucks, VR1 = 653 VPH with 5% trucks, and VR2 = 594 VPH with 8% trucks, what is the passenger car equivalents (Vpcph) of the onramp? Assume that the roadway is urban.4) Determine the level of service (LOS) for a freeway segment with the following data. Show all steps involved. Demand volume (3452 vehicle per hour) ● ● ● ● ● ● ● 1 Number of lanes (3 lanes in one direction) Width of lanes (11ft per lane) Lateral clearance on the right side of the freeway (4 ft) Total ramp density (2 miles between ramps, or 0.5 ramps per mile) Percent of heavy vehicles (5% trucks/buses and 0% recreational vehicles) Peak hour factor (0.927) I Terrain (level) Driver population factor (familiar drivers)Given the data below: Daily Traffic Count Axle Load (Kips) 1000 (single axle cars) 300 (single axle buses) 120 (tandem axle trucks) 100 (tandem axle trucks) 50 (triple axle trucks) 22 40 50 50 SN is 5, P = 4.2, P; = 3, design life is 20 years, growth rate is 5%, lane distribution factor = 0.45 EASL Calculate the !
- It is required to design a rural highway in Baghdad city, the anticipated peak hourly volume for the highway section under consideration within one year is shown in table below: Hour No. 5th 15th 20th 30th 1st 4000 3750 3300 45th 50 Volume (veh./hr) 3100 2850 2650 Find the required No. of lanes for this highway (PHF=0.85; DDF 0.6; Truck 10 percent,design service flow for one lane 1080 pc/hr/lane) 40th 2700 2600H.W. For a two-way highway with information shown below determine future ADT and DHV. a design 20 years & construction on period of years, current ADT is 5500 vpd, annual growth rate of traffic is 4.5% per year.4. TXDOT is working on the design of I-69 north of Victoria. They project a demand volume of 52,000 vehicles per day with a K factor of 0.12 and a directional distribution of 56/44 in level terrain with a target LOS of B and 17% trucks and buses. They plan to have roughly one diamond interchange every 2 miles. What number of lanes is required to achieve these design requirements? What LOS would occur for a typical 4-lane rural interstate design? DHV = AADT * K * D DHV – design hourly volume AADT - average annual daily traffic K- peak hour adjustment factor D- directional distribution (make design conservative)
- 17 An existing urban freeway with 4 lanes in each direction has the following characteristics: Traffic data: Peak hour volume (in the peak direction): 7070 veh/h Trucks: 10% of peak hour volume PHF _ 0.94 Geometric data: Lane width: 11 ft Shoulder width: 6 ft Interchange spacing (average): 1.4 mile Terrain: rolling Determine the LOS in the peak hour. Clearly state assumptions used for any values not given. Show the demand flow rate, mean speed, and density for the given conditions.If current ADTS of a highway is 24,000 and rate of annual growth in traffic is 3% for 18 years design life and 2years of construction,Traffic projection factor will be equal to 3 5 O4. The three traffic zones A, B, and C shown here have interchanges AB = 10, BC = 15, and CA = 20 (nondirectionally). Growth factors of 2, 3, and 1 are forecast for zones A, B, and C, respectively. Using the Fratar method, compute the zonal interchanges in the forecast year. 10 nine 20 15 C