1. We use our geographic information system (GIS) to identify and mark the boundaries of core clusters of customers.
2. Once density zone boundaries are marked, we extended out the customer cluster boundary in all directions to easily identifiable physical or geographical boundaries (such as roads, railways, rivers, lakes) or non-physical boundaries identifiable within the GIS system (such as property lines), where physical boundaries are remotely located from customer clusters.
3. Customer clusters located close to each other are combined into a larger, single density zone.
4. We map the kilometre of distribution line within a proposed density zone boundary and calculate the number of customers per kilometre of line. Based on this we can confirm the correct service type for customers located in the density zone boundary.