Briefly describe the traffic characteristics associated with each of the levels of service for basic freeway sections.
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A: Dear student, Please find the answer in the below attachments Thank you
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Q: Determine the level of service for a six-lane freeway (three lanes in each direction) with the…
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A: As per guidelines we need to answer only first question so please repost rest questions separately.
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Q: Q3. A new section of a freeway is to be designed with a free-flow-speed of 65 mph along of 0.75 mile…
A: Given that; Speed=65 mph0.75 on 5% gradeTraffic volume=4200 v/hrTraffic Composition:15% Truck5%…
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Q: A new section of a freeway is to be designed with a free-flow-speed of 65 mph along of 0.75 mile on…
A: The given data is: Speed of free- flow=65 mph Peak volume=4200 vph PHF=0.9 Upgrade =5% The traffic…
Q: A new section of a freeway is to be designed with a free-flow-speed of 65 mph along of 0.75 mile on…
A: Solution Given Data Speed = 65 mph 0.75 mile on 5% upgrade Traffic volume= 4200 v/hr Taffic…
Q: is to be designed to provide LOS C for the following conditions: design hourly volume of 5600 veh/h;…
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Q: A six-lane freeway (three lanes in each direction) in a scenic area has a measured free-flow speed…
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Q: ane freeway (three lanes in each direction) in a scenic area has a measured free-flow speed of 55…
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Q: A six-lane freeway (three lanes in each direction) has regular weekday users and currently operates…
A: Consider the given data Width of road=3.3 m =10.83 ft≈11ftRight…
Briefly describe the traffic characteristics associated with each of the levels of service for basic freeway sections.
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- An existing urban freeway with 4 lanes in each direction has the following characteristics: peak hour volume (in the peak direction) of 7070 veh/h, trucks are 10% of peak hour volume, lane width = 11 ft, shoulder-width = 6 ft no interchanges or ramps along this section and the terrain type is rolling. g) Determine Vp h) Determine the base free flow speed i) Determine the free flow speed. Level of Service on a scale of A to E?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 11% heavy vehicles. The peak 15-minute volume is 1421 vehicles. What are the freeway’s density and level of serviceAn eight-lane freeway section is designed to have a lane width of 10 ft, right-side shoulder width is 4 ft, and 5 ramps over a 2-mile-long centerline. What is the free-flow speed for this freeway section? a. 75 mph b. 70 mph c. 65 mph d. 60 mph
- A six-lane freeway (three lanes in each direction) in mountainous terrain has 10-ft lanes and obstructions 5 ft from the right edge. There are zero ramps within three miles upstream of the segment midpoint and one ramp within three miles downstream of the segment midpoint. 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 level of service?an urban freeway in rolling terrain is designed to carry a design volume of 800 veh/day. Determine the following: (a) a suitable design speed, (b) lane and usable shoulder widths, (c) maximum desirable grade.An urban freeway is to be designed using the following information. AADT = 52,500 veh/day K (proportion of AADT occurring during the peak hour): 0.12 D (proportion of peak hour traffic traveling in the peak direction): 0.65 Trucks: 8% of peak hour volume PHF = 0.94 Lane width: 12 ft Shoulder width: 10 ft Total ramp density: 0.5 interchange/mile; all interchanges are to be cloverleaf interchanges Terrain: rolling Determine the number of lanes in the peak direction required to provide LOS C. (Assume commuter traffic and assume no RVs.)_______ lanes Show all calculations required. (Calculate your answers for the peak direction only. Enter fHV, the peak hour volume in veh/h, the free flow speed in mi/h, the demand flow rate in pc/h/ln, the mean speed in mi/h, and the density in pc/mi/ln.) fHV ________ peak hour volume___________veh/h free flow speed_______ mi/h demand flow rate___________ pc/h/ln mean speed_________ mi/h density_____________ pc/mi/ln.
- A four-lane basic freeway segment on level terrain is being redesigned. The current roadway has 12 ft lanes with 4 ft shoulders. The proposed alignment would expand to six 11-ft lanes with 2 ft shoulders. The road carries 3000 vehicles in the peak hour in one direction, with 925 coming in the peak 15 minutes. The truck mix is 70/30 and makes up 10% of traffic. What is the density and LOS (level of service) before and after the proposed change?An urban freeway is to be designed using the following information. AADT = 51,500 veh/day K (proportion of AADT occurring during the peak hour): 0.11 D (proportion of peak hour traffic traveling in the peak direction):0.65 Trucks: 8% of peak hour volume PHF = 0.94 Lane width:12 ft Shoulder width:10 ft Total ramp density:0.5 interchange/mile; all interchanges are to be cloverleaf interchanges Terrain:rolling Determine the number of lanes in the peak direction required to provide LOS C. (Assume commuter traffic and assume no RVs.)_______ calculations required Calculate your answers for the peak direction only. Enter fHV, the peak hour volume _____veh/h the free flow speed _______ mi/h the demand flow rate i_______ pc/h/ln the mean speed ________mi/h the density ______ pc/mi/ln.)An existing six-lane divided multilane highway with a field-measure free-flow speed of 45mph serves a peak-hour volume of 4,000 vehicles per hour, with 10% trucks (50% SUT, 50% TT). The PHF is 0.88. The highway has generally rolling terrain. What is the likely level of service for this segment? Good weather, no incidents, no work zones, and regular drivers may be assumed.
- Determine the practical stopping distance (m) for a road with speed limit of 49kph and grade of 0%when desiging an auxiliary lane, the deceleration length need to be determined. Briefly explain what is the deceleration length and how to determine itA California freeway has four lanes in each direction and carries a traffic volume of 4000 veh/h. The lane width is 11 ft, right shoulder lateral clearance is 5 ft, and there are four interchanges in every six miles of this freeway. Each interchange has two ramps, one for entry and one for exit. There is a 1 mile long section of this freeway that has a 6% upgrade. It is known that on this segment 5% of the traffic is SUTs and 5% is TTs. Peak-hour factor (PHF) is 0.90. Determine the LOS for this segment.