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- A Class II two-lane highway needs to be redesigned for an area with rolling terrain. During the peak hour, 380 vehicles are traveling in the analysis direction and 300 vehicles are traveling in the opposing direction. The PHF is 0.92. The traffic stream includes 8% large trucks, 2% buses, and no recreational vehicles. What is the maximum percentage of no-passing zones that can be built into the design with LOS maintained?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.Oasis Freeway is a four lane road located in the Metro where trucks, buses, and rvs can be found aside from passenger cars. At some point further along the roadway there is a 5.5% upgrade that is 1.3 km long. If the traffic stream has 25% large trucks and buses and 5% recreational vehicles, what is the heavy vehicle adjustment factor?
- Q: The expected daily traffic (AADT) for tow-way on a major six-lane flexible pavement highway consists of trucks of type 1 and 2 with equivalency factors as follow: type1 truck 1000/day(2. way) type2truck 500/day (2 way) 24kips(single) 24Kips(Tandem) 12kips(single) Equiv. 3.22 0.450 0.010 factor 24kips(single) 3.22 12 kips(Tandem) 0.026 Performance penod-15 years, annual growth rate=4%, tirectional distribution percent -70%, design lane percent 80 %, required structural number for subgrade = 5.7, asphalt concrete surfacing layer coefficient (4,-0.42), asphalt concrete base layer coefficient (a₂-034), gravel and soil subbase layer coefficient (93-0.12) and the modify drainage coefficient (m = 1.0) for all pavement courses Find the equivalent single axle load (ESAL) and draw a simple sketch of designed three pavement thickness courses with all necessary calculations?A Class II two-lane highway needs to be redesigned for an area with rolling terrain. During the peak hour, 380 vehicles are traveling in the analysis direction and 300 vehicles are traveling in the opposing direction. The PHF is 0.92. The traffic stream includes 8% large trucks, 2% buses, and no recreational vehicles. What is the maximum percentage of no-passing zones that can be built into the design with LOS C maintained?Determine the LOS on a regular weekday on a 1.5-mile segment of an 8-lane freeway (four lanes in each direction) in rolling terrain. Use the following data.
- What is the capacity of a freeway with 2-lanes in one direction, 10 ft lanes, 1 ft shoulders and 4 ramps within a six-mile stretch? Show Work Correct Answer: 23354) 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)A six-lane freeway (three lanes in each direction in mountainous terrain has 10-ft lanes and obstructions 1ft from the right edge. There are five ramps within three miles upstream of the segment midpoint and four ramps within three miles downstream of the segment midpoint. The traffic stream consists of mostly commuter with a peak hour factor of 0.84, peak-hour volume of 2500 vehicles, and 4% recreational vehicles. What is the level of service?
- 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)The average daily traffic on a stretch of road is 300 commercial vehicles per lane per day. Design traffic repetitions for 10 years when vehicle damage factor is 2.5 and traffic growth rate is 7% isYawi Freeway is a four lane road located in the Metro where trucks, buses, and rvs can be found aside from passenger cars. At some point further along the roadway there is a 5.7% upgrade that is 1.5 km long. If the traffic stream has 25% large trucks and buses and 5% recreational vehicles, what is the heavy vehicle adjustment factor?