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Define Pavement Design - Transportation
1. Asphalt surface
a. Estimate Design Traffic
b. Determine the Structural Number (SN) for the given traffic, roadway, and soil characteristics
c. Compute layer-thickness using the following equation
SN = a1D1 + a2D2 + ...+anDn
Where SN = structural number of the pavement
ai = strength coefficient of the ith layer
Di = thickness of the ith layer in inches
What is 'contact pressure'? How does it depend on the type of structure and type of soil? What is 'active zone' in soil? Define it with reference to the pressure bulb concept.
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