Buffer Density Analysis

[MikeWissner]

Hello All,

I am running an analysis to prioritize locations that have the highest buffer densities, ie places where many buffers overlap.  Any idea how to determine this?  I don't think it's feasible to separate each buffer into its own layer.

Any help would be much appreciated,

thanks,
mike

[Anonymous User]

Mike,

I am not sure why you are having this problem.  I was able to get it to work.  However, I only have an arcEditor license so I do not have the feature to point capability.  To get the buildings to centroids I used the "points to centroid" tool in the xTools Pro extension that I have.  However, as far as I know this tool works the same as the features to point tool so I am not sure what is happening. I was able to convert it to raster without any problems.

The first one I did I used a cell size of 200 for the polygon centroids and I used a focal stats circular neighborhood of 1320 ft to get the 1/4 mile effect of the buffers.  Here is what it gave me:

[ATTACH=CONFIG]16803[/ATTACH]

I did a second one as well just for display purposes using the same polygon centroid raster and used a circular neighborhood of 5000 ft.

[ATTACH=CONFIG]16804[/ATTACH]

[MikeWissner]

Thanks for all your help Caleb,

I don't know where my issues are coming from, but I'll continue to troubleshoot.  I know that what you suggested is the logical answer, so I'll probably just start from scratch and try again.

best,
mike

[MikeWissner]

My problem is definitely in the conversion to raster.  I'm continually getting a result with ZERO raster cells from the points.

[Anonymous User]

I do not know why that is happening to you.  I cannot imagine how frustrated you must be.  Sometimes, this usually only happens when I try to run spatial analyst tools, but I will repeatedly try to run a tool and no matter what it doesn't work.  When this happens I will open up a new blank mxd and add just the input data that I need and try to run the tool again.  And for some reason, sometimes it will work, even though I have done nothing different from when I tried in the original mxd (might be a bug in 10?).

So I guess if you haven't tried this already, I would try to open a blank mxd and just add your point file and try the point to raster tool again. If this does not work, I would contact Esri to figure out what is going on.  I hope this works. Sorry to hear you are having such bad luck!!

Caleb