2. (a) An eight-lane divided highway is to be constructed on a new alignment. Traffic volume forecasts indicate that the average annual daily traffic (AADT) in both directions during the first year of operation will be 20,000 with the following vehicle mix and axle loads:- Passenger cars (1,000 lb/axle) = 40%- 2-axle single-unit trucks (6,000 lb/axle) = 40%- 3-axle single-unit trucks (10,000 lb/axle) = 20%The vehicle mix is expected to remain the same throughout the design life of the pavement. If the expected annual traffic growth rate is 4% for all vehicles, determine the design ESAL, given a design period of 20 years. The percent of traffic on the design lane is 45%. Compute Accumulated Equivalent Single-Axle Load for this proposed Eight-Lane Highway.

AADT in both directions = 20,000 Passenger Cars (1000lb/axle) = 40% 2- axle single unit trucks…

Answered: An eight-lane divided highway is to be…

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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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 terms of the cumulative number of standard axles (in million standard axles, up to two decimal places) is %3D
A road has the following traffic axle distribution Traffic Axle Distribution Axle Group Type Total Axle Group SAST 512 Answer: SADT TAST TADT 743 275 511 determine the average number of axle groups per heavy vehicle. Please provide your answer to three decimal points TROT 549
Q: Given the data below: Daily Traffic Count Axle Load (Kips) (2-аxle) 2 (3-аxle) 22 (4-аxle) 40 (5-аxle) 50 |(6-axle) 50 SN is 5, P;= 4.2, P, = 3, design life is 15 years, growth rate is 2.5%, lane distribution factor = 0.45, AADT = 1600 Calculate the ESAT.
Step by step solutionProblem 3: A four-lane freeway (two lanes in each direction) operates at capacity during the peak hour. It has 11-ft lanes, 5-ft shoulders, and there are 3 ramps within 3 miles upstream of the segment midpoint and 3 ramps within 3 miles downstream of the segment midpoint. The freeway is on rolling terrain and has 10% heavy vehicles with a PHF of 0.9. It is known that 15% of the AADT occurs in the peak hour and the directional factor is 0.7. Determine: (a) Heavy vehicle adjustment factor(b) Free-flow speed(c) Capacity(d) Volume-to-capacity ratio(e) Density and LOS(f) AADT(g) What is the highest possible value of the heavy vehicle adjustment factor? (h) If the volume exceeds capacity, what is the LOS? Note: No need to show calculations for (g) and (h).
The predicted traffic mix of a proposed four-lane urban non-interstate freeway is as follows. Passenger cars = 78% Single-unit trucks: 2-axle, 5,000 lb/axle = 12% 2-axle, 9,000 lb/axle = 4% 3-axle or more, 23,000 lb/axle = 3% Tractor semitrailers and combinations: 3-axle, 20,000 lb/axle = 3% The projected AADT during the first year of operation is 3,900 (both directions). If the traffic growth rate is estimated at 3 percent and the CBR of the subgrade is 7.5, determine the depth of a full-asphalt pavement (in inches) using the AASHTO method and n = 20 years. The resilient modulus of the asphalt (EAC) is 320,000 lb/in². Assume m, for the subgrade is 1 and the percent of traffic on the design lane is 42 percent, pt = 2.5, and SN = 4. Use a reliability level of 90 percent, a standard deviation of 0.45, and a design serviceability loss of 2.0. Assume the design lane factor f is 0.42. (Use single-axle load equivalency factors for 2-axle vehicles and tandem-axle load equivalency factors for…
The predicted traffic mix of a proposed four lane urban non-interstate freeway: Passenger cars (4.44KN/axle) = 69% 2-axle single unit trucks (22.2kN/axle) = 20% 2-axle single unit trucks (40KN/axle) = 5% 3-axle or more single unit trucks (100KN/axle) = 4% 3-axle or tractor semitrailers and combinations (90kN/axle) = 2% %3D %3D %3D The projected AADT during the first year of operation is 3500 (both directions). If traffic growth rate is estimated at 4%, percent of traffic on the design lane is 42%, pt =2.5 and SN =3, determine the design ESAL at the design life of 20 years.
As4
Determine the LOS on a regular weekday on a 1.5-mile segment of an 8-lane freeway (four lanes in each direction) in rolling terrain. Use the following data.
An existing rural 4-lane highway is to be replaced by a 6-lane divided expressway (3 lanes in each direction). Traffic volume data on the highway indicate that the AADT (both directions) during the first year of operation is 24,000 with the following vehicle mix and axle loads. Passenger cars = 50 percent 2-axle single-unit trucks (12,000 lb/axle) = 40 percent 3-axle single-unit trucks (16,000 lb/axle) = 10 percent The vehicle mix is expected to remain the same throughout the design life of 20 years, although traffic is expected to grow at a rate of 3.5 percent annually. Using the AASHTO design procedure, determine the minimum depth of concrete pavement required for the design period of 20 years.
/ a. A eight lane ( Both direction) highway which opened to traffic at 2019. Truck and busses percent 10,and 20 respectively , ideal capacity 1100 pcu/day/lane . Determine the average daily traffic at 2009(vpd) when the data was collected (K – factor 10% , D = 70% and n =20 years)
QUESTION 10 A two-lane, one-way, rural freeway segment is being designed to service a demand volume of 4,000 vehicles per hour. The PHF is expected to be 0.95. If the combination of trucks, buses, and recreational vehicles is represented by a heavy vehicle adjustment of 0.85, what is the flow rate (pcphpl)? Provide your answer to the nearest integer.

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