A flexible pavement has a structural number of 3.8, the initial PSI is 4.7 and the terminal serviceability is 2.5. The soil has a resilient modulus of 13,000. The overall standard deviation is 0.4 and the design reliability is 95%. The pavement is currently designed for 1800 equivalent 18-kip single-axle loads per day. What is the pavement's design life in years? If the number of 18-kip single-axle loads were to increase by 50%, by how many years would the pavement's design life be reduced?

A flexible pavement has a structural number of 3.8, the initial PSI is 4.7 and the terminal serviceability is 2.5. The soil has a resilient modulus of 13,000. The overall standard deviation is 0.4 and the design reliability is 95%. The pavement is currently designed for 1800 equivalent 18-kip single-axle loads per day. What is the pavement's design life in years? If the number of 18-kip single-axle loads were to increase by 50%, by how many years would the pavement's design life be reduced?

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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