ArcGIS 10: is the location allocation just only choose the new locations based on the

[JamalNUMAN]

ArcGIS 10: is the location allocation just only choose the new locations based on the existing ones or suggest new location totally different from the excising ones

Please, see the attached image that explains my question

Here, i have:

??? 47 demand point
??? 9 facilities to cover the demands
??? I need to make the number of facilities 3

I found that the system choose these from the existing 9 facilities and doesn???t suggest any new location!

How to make the system suggest new locations for the facilities that not necessarily to be from the existing ones?

[JaySandhu]

Location-Allocation solves a N Choose P problem.

So you have to give it a larger set of locations from which it will pick a smaller set to best serve the demand locations.

The input set of candidate locations could have existing facility locations. Some of these can be marker "Required", that is, they have to be in the solution.

Generally you want to give a set of candidate facilities where you can actually build, buy, rent, lease facilities to serve the demand. Not all locations in an area may be suitable or zoned for the type of facility you need to build.

Jay Sandhu