A simplistic approach to the redistricting problem

Abstract

In chapter 1 a general framework was outlined, within which zoning system design, viewed as a form of multi-criteria aggregation problem, can be approached in a systematic manner. A key feature of this approach is the successive consideration of sets of relevant design criteria through the use of a series of analytical methods that can be employed to evaluate the performance of a given basic feasible system or starting solution, in relation to these criteria. In this spatial system design sequence, it was observed that a choice exists between a number of alternative methods for deriving an appropriate form of basic feasible solution. The field of electoral redistricting has been identified as a fruitful area of research from which such methods might be borrowed for this purpose. The aim of the first part of this chapter is therefore to outline the main features of the alternative approaches to electoral redistricting. From this review, one particular algorithm emerges as having considerable potential for adaptation to accommodate the specific requirements of zoning system design. The necessary modifications to this so-called simplistic algorithm are described and its use is demonstrated using data derived from the West Midlands Transport Study.