The rapid impact assessment matrix (Riam) For eia

Abstract

The rapid impact assessment matrix (RIAM) is a new tool for execution of an environmental impact assessment (EIA). Many traditional methods of EIA have produced large reports setting out the subjective judgments reached by the assessors. RIAM uses a structured matrix to allow for such judgments (both subjective and those based on quantitative data) to be made on a like-by-like basis, and provides a transparent and permanent record of the judgments made. The computerized RIAM system allows for the matrix to be shown in graphical form, which greatly enhances the clarity of the results produced by this method. RIAM provides a system by which development options and scenarios can be rapidly evaluated. To illustrate the use of RIAM, an example from an EIA study on fly ash deposition into landfill is given. The criteria that might be used to evaluate EIA methods, and how RIAM measures up against these criteria, are discussed.