Asphalt institute pavement design methodology

The methodology can be used to design flexible pavements composed of the following (a) asphalt layers and unbound layers (b) asphalt layers, exclusively (full-depth pavement) (c) asphalt layer and cold asphalt layers and (d) asphalt layer, cold asphalt layer and unbound layer. 

The thickness of the individual layer is determined from appropriate design charts, developed with the aid of the multi-layered elastic analysis software called DAMA. 

This mechanistic/empirical flexible pavement methodology of the Asphalt Institute for highways and streets, together with pavement methodology for airport pavements and for industrial facilities supporting heavy wheel loads, is provided in a computer program known as SW-l Asphalt Institute software (Asphalt Institute 2005). 

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Figure 13.2 Flow diagram for Asphalt Institute flexible pavement design methodology procedure. (From Asphalt Institute, MS-1, The Thickness Design, Asphalt Pavements for Highways Streets, Manual Series No. I [MS-1], 9th Edition, Lexington, USA Asphalt Institute, Reprinted 1999. With permission.)...

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