A westbound section of freeway currently has three 12-ft wide lanes, a 6-ft right shoulder, and...

A westbound section of freeway currently has three 12-ft wide lanes, a 6-ft right shoulder, and no ramps within 3 miles upstream and downstream of the segment midpoint. It is on rolling terrain with 10% heavy vehicles and is operating at capacity with a peak-hour factor of 0.9. If the road is expanded to four 11-foot lanes with a 2-foot right shoulder, and traffic after the expansion is projected to increase by 10% with the same heavy vehicle percentage and peak-hour factor, what is the new LOS and estimated density?

Expert Solution

Ally Wells answered 1 year ago

A six-lane recreational freeway has the following characteristics: 12 ft lanes, 6 ft lateral clearances, 2...

A six-lane recreational freeway has the following characteristics: 12 ft lanes, 6 ft lateral clearances, 2 ramps/mi, 10% trucks (standard mix), peak-hour factor=0.95, level terrain, peak-hour demand=4,000 veh/h. Because the facility serves recreational users to a nearby ski area, the peak period occurs on weekends, and light to moderate snow is the normal weather pattern. If virtually all users of the facility are unfamiliar with the roadway, what is the expected LOS during the peak period?

A six lane urban freeway (three lanes in each direction) in mountainous terrain has 10-ft lanes...

A six lane urban freeway (three lanes in each direction) in mountainous terrain has 10-ft lanes and obstructions 5 ft from the right edge. For every mile of freeway, there is one interchange. The traffic stream consists of mostly commuters with a peak hour factor of 0.84, peak hour volume of 2500 vehicles, and 4% recreational vehicles. What is the LOS? Assume base free flow speed of 70 mph

A freeway has the following characteristics: 6 lanes, 3 in each direction 13’ lanes 8’ right...

A freeway has the following characteristics: 6 lanes, 3 in each direction 13’ lanes 8’ right side lateral clearance Total of 4 ramps in the 3 miles upstream and 3 miles downstream of the midpoint of the facility 2% upgrade for 1.5 miles Urban facility with 50% delivery trucks and 50% freight trucks 8% trucks 3,400 veh/hr in the analysis direction in the peak hour 955 vehicles in the peak 15-minute time period (3) What is the free flow speed of...

A four-lane urban freeway is rolling on rolling terrain with 12-ft lanes, obstructions 2-ft from the...

A four-lane urban freeway is rolling on rolling terrain with 12-ft lanes, obstructions 2-ft from the right edge of the traveled pavement, and nine ramps within three miles upstream and three miles downstream of the midpoint of the analysis segment. The traffic stream consists primarily of commuters. A directional weekday peak-hour volume of 2400 vehicles is observed with 800 vehicles arriving in the most congested 15-min period. If the traffic stream has 10% large trucks and buses and recreational vehicles,...

An existing rural 4-lane freeway (2 lanes in each direction) has 11-ft lanes and 2-ft lateral...

An existing rural 4-lane freeway (2 lanes in each direction) has 11-ft lanes and 2-ft lateral clearance. The freeway hasa peak-hour volume of 1,800 veh/h in one direction, 5% trucks in the traffic stream, and a PHF of 0.92. The freeway has 1 cloverleaf interchange within three miles of the midpoint of segment, and runs through level terrain. No recent field speed data is available. a) Using HCS7, determine the LOS during the peak hour. b) What is the capacity...

A six-lane freeway with three lanes in each direction has regular weekday users. The lanes are...

A six-lane freeway with three lanes in each direction has regular weekday users. The lanes are 12 feet wide, the right-side shoulder is 2 ft wide, and there are two ramps within 3 miles upstream and two ramps within 3 miles downstream of the segment midpoint. The highway is on rolling terrain with 12% large trucks and buses and 2% recreational vehicles. The peak hour factor is 0.85. Determine the maximum hourly volumes that can be sustained at LOS C...

Problem Statement: A four-lane (two-lanes in each direction) freeway is on rolling terrain with 11-ft lanes, a...

Problem Statement: A four-lane (two-lanes in each direction) freeway is on rolling terrain with 11-ft lanes, a 5-ft lateral clearance on right side and 3-ft lateral clearance on the left side of the traveled pavement. The measured free-flow speed is 60-mph. During the peak hour there are 12% large trucks and buses and 6% recreational vehicles. The freeway currently operates at capacity during the evening peak hour. If an additional 11-ft lane is added, and all other factors stay the same,...

A six-lane freeway with three lanes in each direction is on a level terrain and has...

A six-lane freeway with three lanes in each direction is on a level terrain and has 11-ft lanes with a 4-ft right-side shoulder. The total ramp density is 2 ramps per mile. The directional peak-hour traffic volume is 5400 vehicles with a peak-hour factor of 0.95 and all familiar users. The traffic stream includes 5% trucks and another 5% buses and no recreational vehicles. The city has decided to ban all heavy vehicles from using the freeway during the peak...

Toll lanes on a section of the I-40 freeway are being considered in order to reduce...

Toll lanes on a section of the I-40 freeway are being considered in order to reduce traffic congestion and travel times. Since this is a government project, the B-C ratio method must be applied in the evaluation. The following are cost and other estimates: Construction costs = $17,300,000 Operating and maintenance costs = $532,000 per year Projected service life = 30 years Savings in travel times and revenues generated from the tolls = $5,244,000 in the first year of operation...

#1 Toll lanes on a section of the I-40 freeway are being considered in order to...

#1 Toll lanes on a section of the I-40 freeway are being considered in order to reduce traffic congestion and travel times. Since this is a government project, the B-C ratio method must be applied in the evaluation. The following are cost and other estimates: -Construction costs=$17,200,000 Operating and maintenance costs =$521,000 per year Projected service life =24 years Savings in travel times and revenues generated from the tolls =$5,152,000 in the first year of operation and projected to increase...

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