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CALTRANS PAVEMENT DESIGN SOFTWARE DOWNLOAD
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CALTRANS PAVEMENT DESIGN SOFTWARE HOW TO
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This report illustrates that the AASHTO and Caltrans pavement thickness design procedures do not produce the same pavement structures for the same given inputs. Demonstrate the flexibility of the mechanistic-empirical design procedure developed as part of the CAL/APT program to quantitatively, systematically, and rationally permit pavement designers to evaluate the performance of different pavement structures and different materials. Evaluate the effect of assumed drainage conditions on the pavement structures designed using the AASHTO method and relate this effect to the Caltrans method. Related to this objective is the examination of the Gravel Factors for aggregate base and asphalt concrete. Examine differences in predicted pavement performance for pavement designs considered equal within the Caltrans method. Quantify the differences in pavement thickness resulting from use of the two methods. The design comparisons include pavement structures subjected to a range in traffic, as represented by Traffic Indexes of 7, 9, 11, 13, and 15, and a range in subgrade strengths, as measured by subgrade R-values of 5, 20, and 40. This report compares the Caltrans and AASHTO pavement thickness design procedures.