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The service life of a flexible pavement is typically designed in the range of 20 to 30 years.

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The service life of a flexible pavement is typically designed in the range of 20 to 30 years.

(a) True

(b) False

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This key question is from Analysis of Rate of Road Work topic in section Analysis of Rates of Civil Engineering Drawing

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The correct choice is (a) True

For explanation I would say: Required thicknesses of each layer of a flexible pavement vary widely depending on the materials used, magnitude, number of repetitions of traffic loads, environmental conditions, and the desired service life of the pavement. Factors such as these are taken into consideration during the design process so that the pavement will last for the designed life without excessive distresses.

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