5. There is a freeway segment and its characteristics are given as below: •A six-lane urban...
5. There is a freeway segment and its characteristics are given as below:
•A six-lane urban freeway (3 lanes each direction)
•11-ft lanes
•3-ft right-shoulder lateral clearance
•3% grade
•1.2 mile in length
•8% of trucks and buses
•4% recreational vehicles
•Driver population factor (fp): 0.95
•Peak-hour volume in peak direction: 2,500 vehicles
•PHF: 0.925 •Interchange density: 1.5 per mile
Evaluate the freeway segment by Level-of-Service (LOS) according to the Highway Capacity Manual (Referring to Tables 6-3 ~ 6-10 in the textbook, collected from the Highway Capacity Manual).
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5. There is a freeway segment and its characteristics are given
as below:
•A six-lane urban...
1) Find the LOS for a 6-lane Freeway with the following data: a. 6-lanes (3 lanes in each direction) b. Lane widths...
1) Find the LOS for a 6-lane Freeway with the following data: a. 6-lanes (3 lanes in each direction) b. Lane widths 10 ft c. Right-side lateral clearance 4 ft d. Commuter traffic e. Peak hour, peak-directional demand volume 6500 veh/hr f. PHF 0.95 g. Traffic composition: 10% trucks, 3% RV's h. Ramp density of 2 ramps/mile i. Rolling terrain
1) Find the LOS for a 6-lane Freeway with the following data: a. 6-lanes (3 lanes in each direction) b....
1 A segment of a freeway has the following prevailing conditions. Given: Two-way AADT 4000 veh/h;...
1 A segment of a freeway has the following prevailing conditions. Given: Two-way AADT 4000 veh/h; four lane rural freeway with two lanes in each direction; directional demand volume distribution of 40/60; PHF 0.94; 15% trucks and buses, 2% RVs; roling terrain; driver population with familiar drivers; lateral clearance- 5 ft Determine: (a) Level of service (LOS) of the segment. Follow step-by-step calculation. (b) Volume-to-capacity ratio of the segment for the current LOS.
A freeway segment with largely level terrain has an observed free-flow speed of approximately 70 mph....
A freeway segment with largely level terrain has an observed free-flow speed of approximately 70 mph. There are three lanes in each direction, a 3-ft lateral clearance, and approximately 1 interchange per mile. You collect some data and observe a volume of 3080 veh/h with a corresponding PHF = 0.88. You counted 154 trucks and buses and no RVs. From the driver behavior and what you already know about the area, you assume the drivers are all commuters. What is...
transportation design problem 1. A six-lane urban freeway is on level terrain with 12-ft lanes, obstructions...
transportation design problem
1. A six-lane urban freeway is on level terrain with 12-ft lanes, obstructions 3-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 2800 vehicles is observed with 900 vehicles arriving in the most congested 15-min period. If the traffic stream has 11% large trucks and buses...
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...
The following applies to a four-lane freeway. Determine LOS. - Volume is 2,400 vph (one direction)...
The following applies to a four-lane freeway. Determine LOS. - Volume is 2,400 vph (one direction) - Peak Hour Factor: 0.9 - BFFS = 60 mph - 5% truck traffic - 12-ft lanes - 10-ft outside shoulders - One interchange every 2 miles - Level Terrain - No recreational vehicles - Commuter traffic
6.28 A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and...
6.28 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 traveled pavement. There are five ramps within three miles upstream of the segment midpoint and four ramps within three miles downstream of the segment midpoint. A directional peak-hour volume of 2000 vehicles (primarily commuters) is observed, with 600 vehicles arriving in the highest 15-min flow rate period. The traffic stream contains 12% large trucks and...
An eight-lane freeway (four lanes in each direction) is on rolling terrain and has 11-ft lanes...
An eight-lane freeway (four lanes in each direction) is on rolling terrain and has 11-ft lanes with a 4-ft right-side shoulder. The total ramp density is 1.5 ramps per mile. The directional peak-hour traffic volume is 5400 vehicles with 400 large trucks and 6% buses. The peak- hour factor is 0.92. It has been decided that large trucks will be banned from the freeway during the peak hour. How much will the ban reduce expected traffic density and the level...
A divided multilane highway is a recreational area (fp = 0.90) has four lanes (two lanes...
A divided multilane highway is a recreational area (fp = 0.90) has four lanes (two lanes in each direction) and is on rolling terrain. The highway has 10-ft lanes with a 6-ft right-side shoulder and a 3-ft left-side shoulder. The posted speed is 50 mi/h. Formerly there were 4 access points per mile, but recent development has increased the number of access points to 12 per mile. Before the development, the peak-hour factor was 0.95 and the directional hourly volume...
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...
1) Find the LOS for a 6-lane Freeway with the following data: a. 6-lanes (3 lanes in each direction) b. Lane widths 10 ft c. Right-side lateral clearance 4 ft d. Commuter traffic e. Peak hour, peak-directional demand volume 6500 veh/hr f. PHF 0.95 g. Traffic composition: 10% trucks, 3% RV's h. Ramp density of 2 ramps/mile i. Rolling terrain
1) Find the LOS for a 6-lane Freeway with the following data: a. 6-lanes (3 lanes in each direction) b....
1 A segment of a freeway has the following prevailing conditions. Given: Two-way AADT 4000 veh/h; four lane rural freeway with two lanes in each direction; directional demand volume distribution of 40/60; PHF 0.94; 15% trucks and buses, 2% RVs; roling terrain; driver population with familiar drivers; lateral clearance- 5 ft Determine: (a) Level of service (LOS) of the segment. Follow step-by-step calculation. (b) Volume-to-capacity ratio of the segment for the current LOS.
transportation design problem
1. A six-lane urban freeway is on level terrain with 12-ft lanes, obstructions 3-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 2800 vehicles is observed with 900 vehicles arriving in the most congested 15-min period. If the traffic stream has 11% large trucks and buses...
6.28 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 traveled pavement. There are five ramps within three miles upstream of the segment midpoint and four ramps within three miles downstream of the segment midpoint. A directional peak-hour volume of 2000 vehicles (primarily commuters) is observed, with 600 vehicles arriving in the highest 15-min flow rate period. The traffic stream contains 12% large trucks and...
An eight-lane freeway (four lanes in each direction) is on rolling terrain and has 11-ft lanes with a 4-ft right-side shoulder. The total ramp density is 1.5 ramps per mile. The directional peak-hour traffic volume is 5400 vehicles with 400 large trucks and 6% buses. The peak- hour factor is 0.92. It has been decided that large trucks will be banned from the freeway during the peak hour. How much will the ban reduce expected traffic density and the level...
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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