Example : For the following traffic compositionPassenger carBusses (>25 passenger) =5%Heavy vehiclemotorcycleDetermine the equivalent passenger car unit if the total number ofvehicles passing is 8500 veh.=50%=42%=3%Solution:No. Passenger carsNo. of busses (25 passenger)No. heavy vehicleNo. of motorcycleTotal equivalent passenger car == 8500* (50/100) = 4250= 8500* (05/100) = 425= 8500* (42/100) = 4570= 8500* (03/100) = 2554250*1+ 425*2.5+3570*3+255*0.33Total equivalent passenger car =4250+1062.5+10710+84.15 = 16107 PCUActivate WindowsGo to Settings to activate

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Example : For the following traffic composition Passenger car Busses (>25 passenger) Heavy vehicle motorcycle Determine the equivalent passenger car unit if the total number of vehicles passing is 8500 veh. =50% =5% =42% =3% Solution: No. Passenger cars No. of busses (25 passenger) = 8500* (05/100) = 425 No. heavy vehicle No. of motorcycle Total equivalent passenger car = = 8500* (50/100) = 4250 %3D = 8500* (42/100) = 4570 = 8500* (03/100) = 255 %3D 4250*1+ 425*2.5+3570*3+255*0.33 Total equivalent passenger car = 4250+1062.5+10710+84.15 = 16107 PCU %3D Activate Wind Go to Settings to

Example : For the following traffic composition Passenger car Busses (>25 passenger) Heavy vehicle motorcycle Determine the equivalent passenger car unit if the total number of vehicles passing is 8500 veh. =50% =5% =42% =3% Solution: No. Passenger cars No. of busses (25 passenger) = 8500* (05/100) = 425 No. heavy vehicle No. of motorcycle Total equivalent passenger car = = 8500* (50/100) = 4250 %3D = 8500* (42/100) = 4570 = 8500* (03/100) = 255 %3D 42501+ 4252.5+35703+2550.33 Total equivalent passenger car = 4250+1062.5+10710+84.15 = 16107 PCU %3D Activate Wind Go to Settings to

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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Similar questions

7. The following table shows traffic flow data collected at the main road in an urban area, in two successive days during the peak period Day one Flow (veh) Day two Time Flow (veh) 7:30 – 7:45 7:45 – 8:00 900 950 960 8:00 – 8:15 1010 1015 8:15 – 8:30 990 980 (a) Determine the peak hour factor (PHF) (b) Estimate the missing traffic flow count (x) on day two.
Question 25 Given a free flow speed of 70 mph, and an analysis volume (or flow rate) of 1,942 passenger car/hour/lane on a freeway, what is the density in passenger car/hour/lane? (please compute an exact answer)
Question: A section of highway is known to have a free-flow speed of 55 mph and a capacity of 3300 veh/hr. In a given hour, 2100 vehicles were counted at a specified point along this highway section under uncongested conditions. If the linear speed- density relationship applies, what would you estimate the space-mean speed of these 2100 vehicles to be? Show all the calculation steps.
Q3/ Determine the equivalent passenger car unit for the following traffic composition if the total number of vehicle is 7000. Passenger car = 36%, Buss (24 passenger) = 13%, Light good vehicle = 2%, Heavy vehicle = 25%, Truck = 6%, Motorcycle = 9%, Bicycle = 9%.
Compute the annual ESAL for the traffic summarized in the table below, using the fourth power formula and assuming 350 days per year to compensate for reduced traffic on weekends. Weekday Traffic Data Truck Gross Weight Average (lbs) 20,000-40,000 40,100-66,000 66,100-80,000 80,100-110,000 Load on Steering Axle Load Distribution (Front/Rear) Number of Trucks 32,000 58,000 76,000 108,000 Weight (lbs) 3-Axle, All Single equal load singles front, -S2 for one tandem for the rear, -2 for two equal load singles for the trailer) 200 0 0 Trailer 5-Axle, 3-S2 Semi 5-Axle, 3-S2-2 Semi + (3 for one steering (3 for one steering single single and two and two equal load for the 8,000 lbs. Equal for the front, -S2 for one tandem for the rear) 330 800 800 300 12,000 lbs. 60/40 380 320 350 360 14,000 lbs. 30/30/20/20
It takes about 3 s for a driver having 0.1% alcohol in his system to react to a situation to avoid a collision. If such drivers are traveling on a straight road at 45.5 ft/s and their cars can decelerate at 2.64 ft/s^2, determine the shortest stopping distance d (in feet) from the moment they see the pedestrians. The Correct answer is 528.59. Show solution.
Drivers arrive at a toll booth at a rate of 5 per minute during peak traffic periods. The time between consecutive driver arrivals follows an exponential distribution. What is the probability that it will take a) more one minute between consecutive drivers? b) between 30 seconds and 90 seconds between consecutive drivers?
3. Tests reveal that a normal driver takes about 0.75 s before he or she can react to a situation to avoid a collision. It takes about 3 s for a driver having 0.1% alcohol in his system to do the same. If such drivers are traveling on a straight road at 30 mph (44 ft/s) and their cars can decelerate at 2 ft/s², determine the shortest stopping distance d for each from the moment they see the pedestrians. Moral: If you must drink, please don't drive!
The utility functions for auto (A), light rail (L), bus (B) and bus rapid transit (BRT) are as follows: U(A) =1-0.00142C-0.025T (C = 6; T = 40) U(L) = 5-0.00142C-0.125T-0.354W (C=1.75, T=25, W=15) U(B) = 16-0.00142C-0.0167T-0.354W (C=1.25, C=60, W=30) U(BRT) = 6-0.00142C-0.0167T-0.354W (C=1.75, C=30, W=15) where C = cost ($), T = travel time in minutes, and W = wait time in minutes Using the logit model, determine the percent of travel by bus rapid transit.
13. An incident that occurs on a particular highway results in traffic incurring an average delay of one hour per vehicle. An estimated 2,000 vehicles are impacted by the incident. If the distribution of traffic is comprised of 5% five-axle trucks, 2% three-axle trucks, 4% six-tire trucks, 2% four-tire trucks, 4% medium auto for business purposes, 3% small auto for business purposes, and the remainder are automobiles for personal purposes, what is the value of the total delay incurred by the traffic.
A section of a highway is known to have a free-flow speed of 35 mi/h and a capacity of 2345 veh/h. In a given hour, 2500 vehicles were counted at a specified point along this highway section. If the linear speed-density relationship applies. Calculate for the density in veh/mi. ( round answers in 3 decimal places )