![]() This final report does not include the prototype software which will be validated and tested during the next phase. The prototype Pavement Design and Sensitivity Analysis (PA&SA) software package was developed to demonstrate the concept of retrieving the pavement design results from the database for a design sensitivity analysis. WinPAS was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10 or Windows 11 and is compatible with 32-bit systems. The prototype PD&SA software is a computer program that stores pavement design results in database that is designed for the user to input design data from the variety of design programs and query design results for given conditions. This paper presents efforts towards the integrated pavement design and management system, by developing smart pavement design sensitivity analysis software. Both packages provide design solutions for both asphalt and concrete pavements. The sensitivity analysis of these four design input parameters were performed using three pavement design software packages to identify which input parameters require the most attention during pavement design.īased on the current pavement design procedures and sensitivity analysis results, a prototype pavement design and sensitivity analysis (PD&SA) software package was developed to retrieve the pavement thickness design value for a given condition and allow a user to perform a pavement design sensitivity analysis. software packages are available, DarWIN from AASHTO and WinPAS from the ACPA. First, the following four critical design input parameters were identified: traffic, subgrade strength, reliability, and design life. The APAI software designs asphalt pavements based on pre-mechanistic/empirical AASHTO methodology. The design inputs described in the paper include pavement load characterization using equivalent single axle loads as well as axle load spectra, subgrade and material characterization, initial and terminal serviceability, and reliability. As shown in Figure1, four critical design input parameters were identied, and the sensitivity analysis of each parameter was performed using each of two pavement design software packages. The WinPAS software performs both concrete and asphalt pavements following the AASHTO 1993 design method. The WinPAS software performs pavement thickness design based on the AASHTO 1993 pavement design guide 13. StreetPave designs the concrete pavement thickness based on the PCA method and the equivalent asphalt pavement thickness. Three pavement design software packages were compared with regards to how they were different in determining design input parameters and their influences on the pavement thickness.
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