The traffic on the design lane of a proposed four-lane rural interstate highway consists of 25% trucks. If classification studies have shown that the truck factor canbe taken as 0.45, design a suitable flexible pavement using the 1993 AASHTO procedure if the AADT on the design lane during the first year of operation is1885, pi = 4.2.Growth rate = 6.5%%3DSN,Design life = 20 yrsReliability level = 95%Standard deviation = 0.45Surface courseDI%3DSN2%3DD2%3DSN3Base courseSubbase courseD3Roadbed courseThe pavement structure will be exposed to moisture levels approaching saturation 20% of the time, and it will take about one week for drainage of water.Effective CBR of the subgrade material is 7. CBR of the base and subbase courses are 70 and 22, respectively, and Mr for the asphalt mixture, 3102 MPa(450,000 lb/in?).

GIVEN- pt = 2.5. Growth rate = 4% Design life = 20 years Reliability level = 95% Standard…

The traffic on the design lane of a proposed four-lane rural interstate highway consists of 25% trucks. If classification studies have shown that the truck factor be taken as 0.45, design a suitable flexible pavement using the 1993 AASHTO procedure if the AADT on the design lane during the first year of operation is 1885, pi = 4.2. Growth rate = 6.5% Design life = 20 yrs Reliability level = 95% Standard deviation = 0.45 SN, Surface course SN, SN Base course D Subbase course D3 Roadbed course drainage of water

The traffic on the design lane of a proposed four-lane rural interstate highway consists of 25% trucks. If classification studies have shown that the truck factor be taken as 0.45, design a suitable flexible pavement using the 1993 AASHTO procedure if the AADT on the design lane during the first year of operation is 1885, pi = 4.2. Growth rate = 6.5% Design life = 20 yrs Reliability level = 95% Standard deviation = 0.45 SN, Surface course SN, SN Base course D Subbase course D3 Roadbed course drainage of water

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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Question

The traffic on the design lane of a proposed four-lane rural interstate highway consists of 25% trucks. If classification studies have shown that the truck factor can
be taken as 0.45, design a suitable flexible pavement using the 1993 AASHTO procedure if the AADT on the design lane during the first year of operation is
1885, pi = 4.2.
Growth rate = 6.5%
%3D
SN,
Design life = 20 yrs
Reliability level = 95%
Standard deviation = 0.45
Surface course
DI
%3D
SN2
%3D
D2
%3D
SN3
Base course
Subbase course
D3
Roadbed course
The pavement structure will be exposed to moisture levels approaching saturation 20% of the time, and it will take about one week for drainage of water.
Effective CBR of the subgrade material is 7. CBR of the base and subbase courses are 70 and 22, respectively, and Mr for the asphalt mixture, 3102 MPa
(450,000 lb/in?).

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