Please refer to screenshot attached.
I calculated a route along the entire length of a street segment feature. The Cost value is consistent with the data, but the Distance value is way off. The Drive Directions says the path distance is 1098 feet, but the Measure Tool says 815 feet - a deviation of about 35%.
The Distance attribute of the ND is using Shape_Length which is in decimal degrees, but I have Feet specified as the Distance Display Units in the ND Directions Agent. It seems that the conversion from Decimal Degrees to Feet that the Directions Agent is using is not consistent with the conversion options in the Measure Tool, unless I've made a mistake somewhere. Any ideas? Thanks in advance!