4. Find the level of service of the following road: (35 points)• 6-lane freeway, terrain: rolling, lanes: 11 ft, right shoulder: 5 ft, 3 ramps in 2 milespeak hour traffic volume in each direction: 4000 veh/h, PHF: 0.95, % trucks: 10%Solution5fHV= 6Vp1684.2 pc/h/InFFS = 68.6 mphc=2385.7 pc/h/InS = 66.5 mphD = 25.3 pc/mi/InLOS C

The objective of the question is to determine the Level of Service (LOS) of a given road. The LOS is…

Answered: 4. Find the level of service of the…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A section of four lane (two lanes in each direction) freeway in mountainous terrain, which is 2.5 mi long, is to be improved to carry on a regular weekday a heavy volume of 3000 veh/h, consisting of 80% passenger cars, 15% trucks, 3% buses, and 2% recreational vehicles. The PHF is 0.90. Determine the additional number of 12-ft lanes required in each direction if the road is to operate at LOS B. The base FFS is 65mph, there is a lateral obstruction 4ft from the pavement on the right side of the road, and interchange spacing is 2 mi. Driver population adjustment factor fp= 1.0.
3(b) Another section of the highway has the Following Flow density relationship: q = 50k - 0.156 k²; H q= (v) 2M2 at bas Determine: 9977 Fa (i) the maximum flow (qmax) of the highway Section? (0) Lii) the speed at maximum flow? booge wolf - A 14 (1) Ciii) the density (K) when the highway is at one-quarter of its capacity?
Given the following prevailing traffic and roadway conditions on a uniform 0.625-mile section of a six- lane (3 lanes each direction) rural freeway in the west-bound direction during a regular weekday: Hourly volume, V=4400 vph PHF-0.90 Heavy vehicles=20% (70% single unit trucks and 30% tractor-trailers) Lane width =11 ft Terrain = 3.5% upgrade Shoulder width =5 ft No entry or exit ramps within 3-miles upstream and 3-miles downstream of the midpoint of the analysis segment Determine the capacity and level of service (LOS) on this section of the freeway.
A Four Lane freeway is located on rolling terrain with a free flow speed of 70 mph,12ft lanes, and no lateral obstructions within 8 ft of the pavement edges. the traffic stream consists of cars, buses and large trucks (no recreational vehicles) . A weekend directional peak hour volume of 1800 vehicles (*regular users*)is observed ,with 700 arriving in the mostly congested 15 minutes period . if a level of service no worse than C is required ,determine the maximum number of large trucks and buses that can be present in the peak hour traffic stream.. Dislike for wrong answers
A freeway with flow rate ( VP ) = 1600 Pc/hr./In. and free flow speed = 55 %3D mile/hr. the recommended level of service ( LOS ) when you drop on Figure is: * O LOS A LOS D O LOS B LOS C LOS F
Problem 2. Consider a freeway section with three lanes in each direction and with a length of 1.25mi (2km) and a +5% grade. In this freeway, the directional peak-hour volume is 3,800 veh/h, from which 76 are trucks and 152 are transit buses. The maximum 15-min volume within the hour of analysis is 1,055 vehicles. The lane widths are 12 ft (3.6m), and shoulder widths are 10 ft (3.1m). There are 2 exit ramps and 1 entrance ramp in the 3 miles in the upstream section and 1 exit ramp and 2 entrance ramp in the 3 miles in the downstream section (consider the same ramp density if using international (km) units). All transit buses will be removed from traffic since the transit service will be replaced by a commuter rail service. However, by removing buses, new additional passage car demand is expected. It is estimated that for each removed bus, 7 new passenger cars will be added to the original traffic volume of 3,800 veh/h. Question: Determine the change in speed and traffic density before…
During the peak hour on a Class I two-lane highway, volumes northbound are 1200 veh/h and volumes southbound are 400 veh/h. The PHF is 0.95, and there are 14% trucks/ buses and 4% RVs. Lane widths are 3.35-m, and shoulder widths are 1.2-m. The roadway section is 8-km in length, and there are 12 access points per mi. There are 50% no-passing zones and the base free-ﬂow speed is 96 km/h. Determine the base percent time following in the direction analyzed in percent. Assume Level terrain.
QUESTION 7 The 4 northbound lanes of a rural freeway segment have 13 ft lane widths. There is no lateral clearance afforded on either side of the road. There are no ramps within the area of influence. What is the estimated FFS (mph)? Provide your answer to the nearest tenths.
A class IIl two lane highway in rolling terrain services a small built-up area. It has a base free flow speed of 50 mph., the highway has 11 foot lanes and 4 foot clear shoulders on both sides. There are 12 access points/mile, and 85% no passing zones. Current traffic is 525 vehicles per hour, with 12% trucks, 3% RVs, and a PHF of 0.89. The directional distribution is 60-40. What LOS is expected on this facility?
A four-lane freeway (two lanes on each direction) is located on mountainous terrain with 11-ft lanes, a 5-ft right-side shoulder, and a 3-ft left-side shoulder, and a 60- mph design speed. The freeway currently operates at capacity during the peak hour. If an additional 11-ft lane is added, and all other factors stay the same, what will the new level of service be?
An old 6-lane (3 lanes each direction) rural freeway segment has 11 ft lanes and frequent roadside obstructions located 10 ft from the right edge of the pavement. What is the estimated FFS (mph) for the 3 northbound lanes? Provide the answer to the nearest tenths.
Given the following data: design life n -= 15 years, lane distribution factor D = 0.75, annual rate of growth of commercial vehicles r = 6%, vehicle damage factor F = 4 and initial traffic in the year of completion of construction = 3000 Commercial Vehicles Per Day (CVPD). As per IRC : 37-2012, the design traffic in %3D terms of cummulative number of standard axles (in million standard axles, up to two decimal places) is

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