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Q3. A Class I two-lane highway has a base free-flow speed of 110 km/h. Lane width...
2. A class 1, 30mile long rural two-lane highway segment is in rolling terrain. Peak demand...
2. A class 1, 30mile long rural two-lane highway segment is in rolling terrain. Peak demand is 900 vph (total for both directions), with a 70:30 directional split, and consists of 20% trucks (no rv's or busses). The PHF is 0.80. There are 80% no passing zones, and the base free-flow speed is 55 mi/h. Lane and shoulder widths width are 11 and 2 ft, respectively. There are 6 access points per mile. a) Estimate the average travel speed in...
Q2. Determine the LOS on a regular weekday on a 0.65-km section of a six-lane freeway...
Q2. Determine the LOS on a regular weekday on a 0.65-km section of a six-lane freeway (three-lane each) with a grade of 2 percent, using the following data: Hourly volume: V = 3000 veh/hr PHF = 0.85 Traffic Composition: Trucks = 10 percent R.Vs = 2 percent Lane width = 3.5 m Terrain = Level Base free-flow speed = 110 km/hr Shoulder width = 2 m Interchange spacing = 1 km Driver population adjustment factor fp = 0.95
A segment of Class I two-lane highway has the following known characteristics: • Demand Volume =...
A segment of Class I two-lane highway has the following known characteristics: • Demand Volume = 1800 pc/h, total both directions • Directional split 60/40; PHF = 0.90 • 50 % no-passing zone; Rolling Terrain • 15% trucks; 5% RVs; 10 ft lane widths • 5 ft shoulders; 25 access points /mile • BFFS = 55 mph; Determine the FFS and BPTSF for the highway segment
A six-lane divided highway (three lane in each direction) is on rolling terrain with two access...
A six-lane divided highway (three lane in each direction) is on rolling terrain with two access points per mile and has 10-ft. lanes, with a 5-ft. shoulder on the right side and a 3-ft. shoulder on the left side. The peak-hour factor is 0.80, and the directional peak-hour volume is 3000 vehicles per hour. There are 6% large trucks, 2% buses, and 2% recreational vehicles. A significant percentage of nonfamiliar roadway users are in the traffic stream (the driver population...
CEN 334-Traffic Engineering Spring 2019 Beaudry Due HCM Chapter 12: Two-Lane Highways A 3-mile segment of...
CEN 334-Traffic Engineering Spring 2019 Beaudry Due HCM Chapter 12: Two-Lane Highways A 3-mile segment of Class I two-lane highway has the following conditions: 1. 1700 veh/hr (two-way volume) .10 access points per mile 6% trucks, 4% RVs . 30% no-passing zones BFFS- 50 mph 70/30 directional split Rolling terrain - Typical weekday commuters · PHF 0.90 11 ft lane widths 4-ft right shoulder lateral clearance . a. Using the HCM procedures for two-lane highways and SHOWING ALL WORK, calculate...
Problem #2 A section of a six-lane highway (3 in each direction) with a two-way-left-turn lane...
Problem #2 A section of a six-lane highway (3 in each direction) with a two-way-left-turn lane (TWLTL) is being designed. Determine the level of service if the following data are applicable to this section. Traffic Data: • • • Directional design hour volume = 3600 veh/h (all are passenger cars) Peak-Hour-Factor (PHF) = 0.94 Base Free-Flow-Speed (FFS) = 55 mi/h Geometric data: • • • • • Urban setting Rolling terrain Lane width = 11 ft Shoulder width = 4...
A two-lane highway is currently operating with flow rate at 3000 pc/h in rolling terrain. The...
A two-lane highway is currently operating with flow rate at 3000 pc/h in rolling terrain. The traffic stream consists of cars and trucks only. A recent traffic count revealed 600 vehicles (total, both directions) arriving in the most congested 15-min interval. What is the percentage of trucks in the traffic stream based on the ATS service measure?
---------------- civil engineering ----------------------- capacity 1500 veh/h free flow speed 60 km/hr on a one lane...
---------------- civil engineering ----------------------- capacity 1500 veh/h free flow speed 60 km/hr on a one lane traffic road, there exists a railway grade grossing at the end of the road section. on one day, a train is passing through the crossing and the gate is cloased. consequently the vehciles are required to stop behind the gate while the train is passing. three min later the gate opens and the vehicles leave rigth away. traffic flow in normal traffic conditions is...
A four-lane freeway with two lanes in each direction has a measured free-flow speed of 55 mi/hr. ...
A four-lane freeway with two lanes in each direction has a measured free-flow speed of 55 mi/hr. The peak-hour factor is 0.80 and there are 6% trucks, 2% buses, and 2% recreational vehicles in the traffic stream. One upgrade is 5% and 0.5 miles long. A traffic engineer has determined that the freeway is operating at capacity on this upgrade during the peak hour. If the peak-hour traffic volume is 3900 vehicles, what value for the driver population adjustment factor...
A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions...
A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions 4 ft from the right edge of the pavement. There are 4 ramps within 6 miles. A directional peak-hour volume of 4500 veh/h is observed, with 1250 vehicles arriving in the highest 15-min flow rate period. The traffic stream contains 15% heavy vehicles. What is the density and the corresponding level of service (LOS) of the traffic stream? Do not use on the chart...
2. A class 1, 30mile long rural two-lane highway segment is in rolling terrain. Peak demand is 900 vph (total for both directions), with a 70:30 directional split, and consists of 20% trucks (no rv's or busses). The PHF is 0.80. There are 80% no passing zones, and the base free-flow speed is 55 mi/h. Lane and shoulder widths width are 11 and 2 ft, respectively. There are 6 access points per mile. a) Estimate the average travel speed in...
Q2. Determine the LOS on a regular weekday on a 0.65-km section of a six-lane freeway (three-lane each) with a grade of 2 percent, using the following data: Hourly volume: V = 3000 veh/hr PHF = 0.85 Traffic Composition: Trucks = 10 percent R.Vs = 2 percent Lane width = 3.5 m Terrain = Level Base free-flow speed = 110 km/hr Shoulder width = 2 m Interchange spacing = 1 km Driver population adjustment factor fp = 0.95
CEN 334-Traffic Engineering Spring 2019 Beaudry Due HCM Chapter 12: Two-Lane Highways A 3-mile segment of Class I two-lane highway has the following conditions: 1. 1700 veh/hr (two-way volume) .10 access points per mile 6% trucks, 4% RVs . 30% no-passing zones BFFS- 50 mph 70/30 directional split Rolling terrain - Typical weekday commuters · PHF 0.90 11 ft lane widths 4-ft right shoulder lateral clearance . a. Using the HCM procedures for two-lane highways and SHOWING ALL WORK, calculate...
Problem #2 A section of a six-lane highway (3 in each direction) with a two-way-left-turn lane (TWLTL) is being designed. Determine the level of service if the following data are applicable to this section. Traffic Data: • • • Directional design hour volume = 3600 veh/h (all are passenger cars) Peak-Hour-Factor (PHF) = 0.94 Base Free-Flow-Speed (FFS) = 55 mi/h Geometric data: • • • • • Urban setting Rolling terrain Lane width = 11 ft Shoulder width = 4...
A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and obstructions 4 ft from the right edge of the pavement. There are 4 ramps within 6 miles. A directional peak-hour volume of 4500 veh/h is observed, with 1250 vehicles arriving in the highest 15-min flow rate period. The traffic stream contains 15% heavy vehicles. What is the density and the corresponding level of service (LOS) of the traffic stream? Do not use on the chart...
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