Solved! Go to Solution.
I am a PhD student and my project involves supply chain analysis in Montana. I want to use Network Analyst to analyze routes from logging operations and mill sites to potential conversion facilities and to refineries. My input road file is massive, and I got it from the Montana GIS website. I have been cleaning it up using the Topology toolbar, but there are still a lot of bugs.
1. Is this the best input road file to use, or can I download and use an ESRI road file?
2. I created a network dataset with the file and ran the "stops" to see if it would give me an optimized route between two points, and it created the most convoluted path I've ever seen.
I could really use some pointers on how to set up the Impedances, and any other tips you have.
Agreed with Joe. The ArcGIS Help for Network Analyst is comprehensive. Consider going through the tutorial regarding the building network dataset from scratch, it is *really* good. This will give you a good idea on how things works under the hood.
Regarding the data sources for network analysis, consider reading my forums post here. For the North America, there is a road dataset (not a network dataset yet!) available from ArcGIS.com. This should be a good start for your project, since the data is quite up-to-date and you should not have any issues setting the network dataset based on this data. Remember, that you can always clip the dataset to make it represent only your area of interest.