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Michael, It sounds like you are questioning the quality of the StreetMap Premium product and its ability to be used for local routing. If that's your main reason for looking for other data to use for your local road network, then I think you should reevaluate. I use Network Analyst almost daily with the StreetMap Premium North America and Europe datasets from ESRI and from open sources like OSM when necessary. The StreetMap Premium data is very high quality; the data is from the industry leaders in road network data, TomTom and HERE (nee Nokia nee Navteq) (full disclosure: I used to work for Navteq, but I'm not biased, I swear!) This is the same data that is giving you turn-by-turn directions in your luxury car brand (BMW, Mercedes, etc.) Also, building a good network dataset in ESRI is a non-trivial process so using other data like TIGER or OSM for your lines is only part of the way there. You need to ensure topological connectivity at each node, calculate a cost for traveling over the link, set turn restrictions, etc. However, if you also worried about the StreetMap Premium cost for a small use case, then I suppose you need to do your own cost-benefit analysis to see what's right for you. Hope this helps. On Thu, Mar 5, 2015 at 10:51 AM, Dan Van Dorn <[log in to unmask]> wrote: > Michael: > First, I benefited from one of the ESRI Virtual Campus courses on Network > Analysis. It contained many scenarios that might overlap with your project, > including creating turns. Second, I found it to be a lot of back and forth. > Not a one pass exercise. Connectivity of nodes is critical as was the > quality of the network, as you mention. I would go after local data. > Finally, there are options for almost everything you can think of. So I > wouldn’t doubt one that points to a road attribute, like one-way. > > Dan > > > On Mar 5, 2015, at 9:06 AM, Michael Lachance <[log in to unmask]> > wrote: > > > > Hello NEARC, > > > > I’m writing to see if any of you who have experience working with the > Network Analyst extension could give some advice on where to obtain an > accurate network dataset on a state or county scale. I’m aware that ESRI > includes one with the purchase of Street Map Premium, but I am questioning > it’s accuracy and reliability on a local scale since it spans the entire > continent of North America. > > > > Alternatively, if you’ve created a network data before, I’d be > interested in what your workflow was, specifically for creating a turns > feature class (a particularly daunting step when you start researching the > topic). > > > > Also, is it possible to set a preference to a certain road attribute > when routing? Attributes that I’ve added into my road network perhaps? > > > > > > Feel free to ask questions if it helps! Thanks! > > > > Kind regards, > > > > Michael Lachance, GIS Specialist > > Dawood Engineering, Inc., > > An ENR Top 500 Company > > 135 Main Street > > Sturbridge, MA 01566 > > > > t: 774.490.7074 (x2013) > > f: 724.746.0732 > > www.dawood.cc > > > > > > Kind regards, > > > > Michael Lachance, GIS Specialist > > Dawood Engineering, Inc., > > An ENR Top 500 Company > > 135 Main Street > > Sturbridge, MA 01566 > > > > t: 774.490.7074 (x2013) > > f: 724.746.0732 > > www.dawood.cc > > > > > ------------------------------------------------------------------------- > This list (NEARC-L) is an unmoderated discussion list for all NEARC Users. > > If you no longer wish to receive e-mail from this list, you can remove > yourself by going to http://listserv.uconn.edu/nearc-l.html. > > > > ------------------------------------------------------------------------- > This list (NEARC-L) is an unmoderated discussion list for all NEARC Users. > > If you no longer wish to receive e-mail from this list, you can remove > yourself by going to http://listserv.uconn.edu/nearc-l.html. > ------------------------------------------------------------------------- This list (NEARC-L) is an unmoderated discussion list for all NEARC Users. If you no longer wish to receive e-mail from this list, you can remove yourself by going to http://listserv.uconn.edu/nearc-l.html.