The results of computer simulations of each of 17 variations on 4 prototypical desegregation plans applied to the Los Angeles Unified School District (LAUSD) are reported in this document. The prototypes, each representing a category of proposals offered at one point or another during the litigation of the desegregation issues are: (1) an all-voluntary plan; (2) a mixed voluntary-mandatory plan; (3) a multi-ethnic plan (in which students of one race or ethnicity would never comprise more than 20% of a school's enrollment); and (4) an area resource utilization plan. Part 1 describes the purpose of the project (which was begun at the direction of the Superior Court of California) and outlines study questions and major constraints on the simulation process. Part 2 summarizes the methods and analytic constructs by which the projections were prepared, and Part 3 describes the demographic backdrop against which the simulation was conducted, including a projection of the racial/ethnic profile of the LAUSD that would exist if the question of a court-ordered desegregation plan involving mandatory pupil transportation had never arisen. Parts 4-7 present the projections for each variation of each prototypical plan. Findings are summarized in Part 8, and ways of improving the data base upon which the projections are based are outlined in Part 9. (KH)