The predicted traffic mix of a proposed four-lane urban non-interstate freeway: Passenger cars = 69% Single-unit trucks (two single axles): 2-axle, 5000 lb/axle = 20% 2-axle, 9000 lb/axle = 5% Single trailer trucks (three single axles): 3-axle, 23,000 lb/axle = 4% 3-axle 20,000 lb/axle = 2% The projected AADT (average annual daily traffic) during the first year of operation is 3500. The design period is 20 years and the traffic growth rate is estimated at 4% annually. The resilient modulus of the asphalt (EAC) is 300,000 lb/in. The CBR of subgrade is 80 (the modulus of subgrade is 18,5000 psi). Assume the percent of traffic on the design lane is 42%. Use pt = 2.5, and SN = 3 for the estimation of load equivalency factor and ESAL. Use a reliability level of 90%, standard deviation of 0.45, and APSI of 2.0, determine the asphalt layer thickness of full-depth asphalt pavement using the AASHTO 1993 design method.
The predicted traffic mix of a proposed four-lane urban non-interstate freeway: Passenger cars = 69% Single-unit trucks (two single axles): 2-axle, 5000 lb/axle = 20% 2-axle, 9000 lb/axle = 5% Single trailer trucks (three single axles): 3-axle, 23,000 lb/axle = 4% 3-axle 20,000 lb/axle = 2% The projected AADT (average annual daily traffic) during the first year of operation is 3500. The design period is 20 years and the traffic growth rate is estimated at 4% annually. The resilient modulus of the asphalt (EAC) is 300,000 lb/in. The CBR of subgrade is 80 (the modulus of subgrade is 18,5000 psi). Assume the percent of traffic on the design lane is 42%. Use pt = 2.5, and SN = 3 for the estimation of load equivalency factor and ESAL. Use a reliability level of 90%, standard deviation of 0.45, and APSI of 2.0, determine the asphalt layer thickness of full-depth asphalt pavement using the AASHTO 1993 design method.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Please explain this problem step by step so I can understand and explain how you got everything step by step, thank you!
![The predicted traffic mix of a proposed four-lane urban non-interstate freeway:
Passenger cars = 69%
Single-unit trucks (two single axles):
2-axle, 5000 lb/axle = 20%
2-axle, 9000 lb/axle = 5%
Single trailer trucks (three single axles):
3-axle, 23,000 lb/axle = 4%
3-axle 20,000 lb/axle = 2%
The projected AADT (average annual daily traffic) during the first year of
operation is 3500. The design period is 20 years and the traffic growth rate is
estimated at 4% annually. The resilient modulus of the asphalt (EAC) is 300,000
lb/in. The CBR of subgrade is 80 (the modulus of subgrade is 18,5000 psi).
Assume the percent of traffic on the design lane is 42%. Use pt = 2.5, and SN = 3
for the estimation of load equivalency factor and ESAL. Use a reliability level of
90%, standard deviation of 0.45, and APSI of 2.0, determine the asphalt layer
thickness of full-depth asphalt pavement using the AASHTO 1993 design method.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7b64ee7d-e3f7-4f57-a7e4-f34b177456b6%2F93dc872d-3c62-4336-9409-83a773e2fbda%2Fr05jkz_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The predicted traffic mix of a proposed four-lane urban non-interstate freeway:
Passenger cars = 69%
Single-unit trucks (two single axles):
2-axle, 5000 lb/axle = 20%
2-axle, 9000 lb/axle = 5%
Single trailer trucks (three single axles):
3-axle, 23,000 lb/axle = 4%
3-axle 20,000 lb/axle = 2%
The projected AADT (average annual daily traffic) during the first year of
operation is 3500. The design period is 20 years and the traffic growth rate is
estimated at 4% annually. The resilient modulus of the asphalt (EAC) is 300,000
lb/in. The CBR of subgrade is 80 (the modulus of subgrade is 18,5000 psi).
Assume the percent of traffic on the design lane is 42%. Use pt = 2.5, and SN = 3
for the estimation of load equivalency factor and ESAL. Use a reliability level of
90%, standard deviation of 0.45, and APSI of 2.0, determine the asphalt layer
thickness of full-depth asphalt pavement using the AASHTO 1993 design method.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
![Structural Analysis](https://compass-isbn-assets.s3.amazonaws.com/isbn_cover_images/9781337630931/9781337630931_smallCoverImage.jpg)
![Structural Analysis (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134610672/9780134610672_smallCoverImage.gif)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
![Principles of Foundation Engineering (MindTap Cou…](https://www.bartleby.com/isbn_cover_images/9781337705028/9781337705028_smallCoverImage.gif)
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
![Structural Analysis](https://compass-isbn-assets.s3.amazonaws.com/isbn_cover_images/9781337630931/9781337630931_smallCoverImage.jpg)
![Structural Analysis (10th Edition)](https://www.bartleby.com/isbn_cover_images/9780134610672/9780134610672_smallCoverImage.gif)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
![Principles of Foundation Engineering (MindTap Cou…](https://www.bartleby.com/isbn_cover_images/9781337705028/9781337705028_smallCoverImage.gif)
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
![Fundamentals of Structural Analysis](https://www.bartleby.com/isbn_cover_images/9780073398006/9780073398006_smallCoverImage.gif)
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
![Sustainable Energy](https://www.bartleby.com/isbn_cover_images/9781337551663/9781337551663_smallCoverImage.gif)
![Traffic and Highway Engineering](https://www.bartleby.com/isbn_cover_images/9781305156241/9781305156241_smallCoverImage.jpg)
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning