This report describes a major enhancement to the Integrated Climatic Model. The Integrated Climatic Model is a one-dimensional coupled heat and moisture flow program that is intended for use in analyzing pavement-soil systems. It has the capability of generating internally realistic patterns of rainfall solar radiation, cloud cover, wind speed, and air temperature to simulate the upper boundary conditions of a pavement-soil system. It has a variety of options for specifying the moisture and temperature, or the flu of these at the lower boundary and at the interface between the subgrade and the base course. It considers the lateral and vertical drainage of the base course m determining the amount of water that enters the subgrade by infiltration through the pavement surface and drainage through the base course. The program calculates the temperature, pore pressure, moisture content and resilient modulus for each node in the profile for the entire analysis period This program also predicts frost behavior, including heave and penetration depth; thermal gradient and curl strain in the pavement layers; and infiltration and drainage behavior of the base course.
The Integrated Climatic Model Version 2.0 has a graphical user interface to model soil-pavement profiles. Through a series of dialog boxes the user inputs all data required for pavement performance calculations. The user may also input climatic data directly from a computer file. After a model run, an interactive dialog box allows the user to generate a wide assortment of output files in both tabular and graphical formats. These output files can be output using the program or can directly be used as input m other graphing software. The Integrated Climatic Model Version 2.0 is intended for use on IBM compatible computers using the Windows 95 or Windows NT 32-bit operating systems. A 486 DX2-66 processor or better is recommended for efficient operation of this program.
