Network Analyst Providing Wrong Distances

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06-19-2014 08:08 AM
ElijahMeyer
New Contributor
Hello all,

I am fairly new to GIS, and have been using the Network Analyst to route from one city to another. The routing part is going fine, but when ArcMap gives me the driving distance, it is way off. For example, I routed from one city to another and got a driving distance of <0.1 mile. When I used the measure tool to measure the distance between the two cities in a straight line, I get 286 miles. The data is all using WGS 1984 coordinate system if that is of any use. Any help? Thanks.
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DanPatterson_Retired
MVP Esteemed Contributor
You have to use the Project tool and project your decimal degree data to some planar coordinate system (ie UTM State Plane etc).  The values you are getting are in decimal degrees which is what a WGS84 coordinate system uses.

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DanPatterson_Retired
MVP Esteemed Contributor
You have to use the Project tool and project your decimal degree data to some planar coordinate system (ie UTM State Plane etc).  The values you are getting are in decimal degrees which is what a WGS84 coordinate system uses.
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ElijahMeyer
New Contributor
Thanks for the answer. That wasn't hard at all!
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