Huff Model

[rrjs67]

Hi

This is written for ArcGIS 9.3 however, I am using ArcGIS 10. The code is written as tool. by Mr. Drew Flater (http://arcscripts.esri.com/details.asp?dbid=15999).
Could anyone please change to ArcGIS 10 compatible?

I am getting the error with the sample data given with the tool:
<type 'exceptions.UnicodeEncodeError'>: 'ascii' codec can't encode characters in position 29-31: ordinal not in range(128)

and the error with my data is attached:

Thanks in advance.

[RaymondChetti1]

@Clinton, thanks for your reply. Drew Flater wrote back and mentioned that my points are not snapped along my road/street network (but despite following this the network is still not working). I wrote back to Drew and said:

When I run the OD Cost Matrix I get the error message below ("No Destinations found for point # in Origins). Origins are sub-districts (demand/market spending potential) and destinations are cafes (supply points). 

Even though my points (demand and supply) are snapped to the route/street/network lines, I am still getting the same error. See below with origin point #92. What can be the problem since my network abides by "Any Vertex" and "Global Turns"? 

OD Cost Matrix:

Network:

To calculate Speed_CostFinal I used: [Length_Field_Meters] / 1609 * 60 / [Speed_Field_MPH] - http://support.esri.com/technical-article/000011800

[ClintonDow1]

Hi Raymond, I'm personally unfamiliar with the finer details of the tool itself but can offer some suggestions. However your pictures aren't showing up - any chance you could upload them to an image host like TinyPic - I think right now the ones you've linked currently are password protected for me. 

[RaymondChetti1]

[ClintonDow1]

The links to the pictures are still broken unfortunately. 

[RaymondChetti1]

Sorry about that. These should work!! I'm not sure why they weren't before but...

[ClintonDow1]

Okay I can see them now, thanks. It still looks to me like the destination points are not along the network. In your first screenshot several of the 'blue squares' that symbolize destinations don't actually touch the network. In the properties for your destinations, under the Network Locations tab did you set the search tolerance and snap to: closest? Help Documentation