The planning field is presently undergoing a technical revolution; computers are increasingly being used to store, manipulate and display planning data. Computer software used by planners for spatial analysis is generally still limited but one program, IMGRID, developed at Harvard University Graduate School of Design by David Sinton, is unusually powerful and adaptable. One major drawback does exist with this computer program; input of user commands to IMGRID is highly structured and in many situations requires use of technical manuals even by those familiar with the technical aspects of IMGRID. Consequently, this creative project develops additional algorithms which make IMGRID an interactive program using standard computer terminals, thus eliminating the rigorous inputting format. In addition, an educational element is added which makes this program even more useful. A description of the user key words and new subroutines are given along with a discussion of a trial computer run indicating the potential of the new interactive system. / Department of Urban Planning

Landscape architecture is presently undergoing a technical revolution; computers are increasingly being Landscape architecture is presently undergoing a used to store, manipulate and display regional information. Computer software used by landscape architects is generally still limited but one program, IMGRID, developed at Harvard University Graduate School of Design by David Sinton, is unusually powerful and adaptable. One major drawback does exist with this program; capability for statistical manipulation of data is very limited. Consequently, this creative project develops additional algorithms which give an enhanced version of IMGRID (IISIS) that statistical capability. Statistical procedures added include a complete range of descriptive statistics and multiple correlation and regression. The IISIS user may invoke these procedures by use of a new key word STAT. A description of the options and new algorithms are given along with an example of their use. / Department of Landscape Architecture

This paper is the result of the adaptation and testing of the IMGRID Programming System acquired from Harvard University, for land use studies in the Department Landscape Architecture and Environmental Planning at Utah State University. The system utilizes rectangular coordinate grid cell data for storage and analysis, and is now in operation on the Burroughs B 6700 computer system. The operation of Utah State IMGRID is documented here to reflect the types of analyses which are currently performed in this region, and examples provided to demonstrate the system to graduate students and others who are interested in land use analysis. Information is also which will assist in preparing the system to accept the modeling criteria and information from different study sites for analysis. This paper is directed towards a user who has a limited knowledge of computer applications in land use studies.