An eight-lane urban freeway (four lanes in each direction) has -ft lanes, with obstructions 2 ft from the right edge of the pavement and aramps over 6-mi analysis segment. Determine Free Flow Speed (FFS).
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A: Solution STEP 1 - find FFS FFS = BFFS - f LW - f LC -f N - f ID FFS = Free flow speed (mph) BFFS…
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Q: A six-lane freeway (three lanes in each direction) in rolling terrain has 10-ft lanes and…
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A: Answer:-
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A: Option (a) 30 mph is correct.
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A: The given dat is: The value of F(L)=1.9 m/h and F(C)=0.8 m/h
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A: Free Flow Speed = 110kmph = 68.36mph
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A: Given data, Peak hour volume V = 2000 vph Peak 15 min volume v = 600
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A: Service flow rate = VPHF×N×fHV×fp Hourly volume V = 1800 veh/hr Peak Hour Factor PHF = 0.9 N = 2 (…
Q: les (primarily
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Q: A six-lane freeway (three lanes in each direction) in rolling terrain has 11-ft lanes and…
A: ANSWER :- 16.81 which is equal to 16.5 So , option (A) is correct answer
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- Given: 4-lane urban freeway; Interchange density 1.5/mile; Directional peak flow = 1950 veh/hr; 5% trucks; PHF = 0.90; 11 ft lanes; obstructions 4ft from right edge; Rolling terrain.Determine (a) LOS, and; (b) how much additional traffic could be accommodated before reaching capacity?A basic segment of a rural freeway has the following characteristics: • Four-lanes (two lanes in each direction)%3B There is one ramp within 3 miles upstream, and 2 ramps within 3 miles downstream; 10-ft lanes; Right shoulder width of 4 ft; • Level terrain;. 10% trucks and 5% buses in the vehicle stream. Calculate the FFS at this freeway section and then determine the level of service (LOS) when the flow rate is 1740 pc/h/In. (Write the answer for the LOS in the box below).Problem 2. New freeway is being designed on a level terrain, free-flow speed 70 mph 12-ft lanes, 6-ft lateral clearance Peak hour volume 2700 veh, 12% heavy vehicles PHF = 0.92 FIND: Number of lanes for LOS C
- A 960-m segment of 5.4-km six lane divided TWLTL multilane highway in a sub-urban area is at a 1.5% grade. The highway is in level terrain and lane widths are 3-m. The peak-hour volume is 3500 veh/hr/ln, PHF is 0.90, and there are 13% trucks and 2% RVs. Determine the LOS for the following: (a) extended directional segments (b) 3% upgrade Please include complete solutionFind the upgrade and downgrade service flow rates and service volumes for an eight lane freeway with the following characteristics: (11 ft lanes, 2 ft right-side clearance, 4.2 ramps/mile, 3% trucks, good weather, regular drivers, PHF of 0.92) The segment in question is on a sustained grade of 3.5%, 1.5 miles in length.A 960-m segment of 5.4-km six lane divided TWLTL multilane highway in a suburban area is at a 1.5% grade. The highway is in level terrain and lane widths are 3-m. The peak-hour volume is 3500 veh/hr/ln, PHF is 0.90, and there are 13% trucks and 2% RVs. Determine the LOS for the following:(a) extended directional segments (b) 3% upgrade(c) 4% downgrade
- A new section of Richmond Highway is being designed as a six-lane facility (three ineach direction) with a two-way left-turn lane. Determine the peak-hour LOS.Traffic data:• Directional design hourly volume = 3600 veh/h• PHF = 0.94• Assumed base free-flow speed = 55 mi/h (88 km/h)Geometric data:• Urban setting• Rolling terrain• Lane width = 11 ft (3.3 m)• Shoulder widths = 4 ft (1.2 m) (right side) and 1 ft (0.3 m) (left side)• Average access point spacing = 12 points per mile on each side1. An existing urban freeway in rolling terrain is to be analyzed to determine LOS using the following information: Number of lanes in each direction: 3 Peak hour volume: 3500 veh/h (in the peak direction, mainly commuter traffic) 8% trucks 0% recreational vehicles PHF=0.95 Lane width: 11 ft Lateral clearance: 4 ft Average interchange spacing: 1.0 mile Base FFS: 65 mphA 960-m segment of 5.4-km six lane divided TWLTL multilane highway in a suburban area is at a 1.5% grade. The highway is in level terrain and lane widths are 3-m. The peak-hour volume is 3500 veh/hr/In, PHF is 0.90, and there are 13% trucks and 2% RVs. Determine the LOS for the following: (a) extended directional segments (b) 3% upgrade(c) 4% downgrade
- QUESTION 1 A four-lane urban freeway segment has a peak demand volume of 3,500 vehicles per hour for the two eastbound lanes. The PHF is 0.95 and there are no trucks, buses or RVs because the freeway is classified as a parkway and such vehicles are prohibited. The segment has 12 ft lanes, no lateral obstructions, 3 ramps within the influence area, and meanders through some beautiful rolling terrain. Assuming the road will be used by commuters and those familiar with the road, what is the flow rate (pcphpl)? Provide your answer to the nearest integer.Find the service flow rate and service volume rate for an 8-lane-one direction urban freeway at level of service (A) with the following: 11-ft lane, 0-ft lane clearance, 2-per mile interchange density and 5% truck. The section is 4% upgrade for 1 mile. Use PHF = 0.85.Determine the value of PTSF for a 6-mile two-lane highway in rolling terrain. Traffic data are as follows: • Volume = 1600 veh/h (two-way) • Percent trucks = 14% • Percent RVs = 4% • Peak hour factor = 0.95 • Percent directional split = 50 - 50 • Percent no-passing zones = 50