Q2: The traffic on the design lane of a proposed four-lane rural interstate highway consists of 40% 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 1150, pi = 4.5, and pt = 2.5 . Growth rate = 3% Design life = 20 years Reliability level = 95% Standard deviation = 0.45 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 are 70 and 22, respectively, and Mr for the asphalt mixture, 3102 MPa (450,000 lb/in2). Q2: The traffic on the design lane of a proposed four-lane rural interstate highwayconsists of 40% trucks. If classification studies have shown that the truck factor can betaken as 0.45, design a suitable flexible pavement using the 1993 AASHTO procedureif the AADT on the design lane during the first year of operation is 1150, pi = 4.5, andpt = 2.5.Growth rate = 3%Design life = 20 yearsReliability level = 95%Standard deviation = 0.45The pavement structure will be exposed to moisture levels approaching saturation20% 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 are 70and 22, respectively, and Mr for the asphalt mixture, 3102 MPa (450,000 lb/in?).

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The traffic on the design lane of a proposed four-lane rural interstate highway consists of 40% 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 1150, pi = 4.5, and pt = 2.5 .

The traffic on the design lane of a proposed four-lane rural interstate highway consists of 40% 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 1150, pi = 4.5, and pt = 2.5 .

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter19: Design Of Flexible Highway Pavements

Section: Chapter Questions

Problem 16P

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