I got bit challenge to use two attributes in subnet line; Shape length that is meters and Circuit length that is feet. I decide to create Arcade expression by configure popup on subnet line. The problem is which is correct planar measurement or Geodetic Measurement?
Planar
Length($feature, 'kilometers');
or
Geodetic
LengthGeodetic(line, "kilometers");
Review attached document: What I see shape length and planar are similar.