Route Length Issue

Discussion created by vusyukov on Nov 15, 2012
Latest reply on Nov 16, 2012 by jsandhu-esristaff
Hello Guys,

I am using a "Network Analyst" tool in order to generate multiple shortest paths between about 1000 O-D pairs. When I run shortest path tool the first time, a first set of routes is calculated. Then rom the table of attributes I can obtain the length of each route. At the same time, I decided to "check" my lengths using "Calculate Geometry" tool and recalculate the same lengths. So, when I ran "Calculate Geometry" tool for the same routes I obtained lengths which were drastically different from the first set. Some of the largest differences are 7 km on a 16 km length. Thank you.