This document reports the results of computer simulations of each of 19 variations on 4 prototypical desegregation plans applied to the Los Angeles Unified School District (LAUSD). Each prototype represents one of the following categories of proposals offered during the litigation of the desegregation issue in the California courts: (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 all-mandatory prototype. (The variations in this series were requested by parties to the litigation after presentation of an earlier series of reporting the results of 17 other variations on 4 types of plans.) 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 comparisons are made with the findings of the first series of simulations. An appendix discusses whether whites left the LAUSD during 1976-77 and 1977-78 in response to the arrival of Permit With Transportation pupils (voluntary transferees) at their schools. (KH)