Matrices can be applied in medium to large scale projects where the number of developmental activities are many (up to 100). Consequently, modifications were made and more and more forms of matrices were developed. Once the elegance of matrices were recognized around the world, EIAs began to use them increasingly in their impact assessments. A simple “x” or “tick” is given under the appropriate column.Ĭomponent Interaction matrix- 0-no linkage 1-primary linkage 2-secondary linkage.
This is simply a list of environmental aspects listed along the vertical axis, against which we determine whether an activity would have an adverse effect, no effect or beneficial effect. Matrices are also versatile, as they can be used for small and large-scale projects alike. This is resolved in matrices, to an extent, with the help of customized matrices. In matrices, this ambiguity and extra work is removed by introducing a quantitative aspect in the assessment of an impact.Ĭhecklist tends to get confusing when you assess multiple levels of impacts descriptively. It also requires a lot of work in describing an impact or writing it out in words. Are matrices better than checklists?Ĭhecklists tend to be long. A step higher from the checklists is the matrices form of impact assessment in EIA. The simplest of these methods are checklists, which I’ve written about before.Ĭhecklists were too primitive to be used for large-scale projects. There are many methods by which we can assess the impact of a developmental project on our site and it’s various components.
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