There was a great blog series on Symbolizing roads with cased line symbols (part 1 of 3) | ArcGIS Blog -- Charlie Frye '07. Can you provide similar for pro. i.e. how do you display a multi-scale map with casement roads, dissolve segments that overlap (without modifying geometry) and place labels that scale as the map scale changes. The goal is a transportation vector tile cache similar to the vector basemaps (beta) - streets or navigation.