As we all know, GPS coordinates is a set of numbers AKA longitude and latitude measurements that at every given time tell of the position on a global map. Thus every position, bus route, street, house etc in every metropolitan city will have a corresponding GPS coordinate. Commercial zones (in advertising terms) in theory cover a geographical area were advertisers can map a certain price to adverts placed in that area based on certain factors i.e. population density of the area, availability to certain class of consumers or popularity of the area with consumers for example.
Now lets imagine Dublin city as the metropolitan city in question, we can in theory map GPS coordinates for all of D1 and D2 as Commercial Zone 1 (CZ1) because of their central location and availability to high population density. In theory its pretty easy to do this, but in practice its a different story all together. Any Ideas?