OpenRoads Designer rules and relationships enable automatic model updating when geometry and corridors change. This is a powerful feature of OpenRoads Designer that ensures the design model is always up-to-date. But what happens when you need to replace a substantial part of the geometry? What if you don’t want a rule created. How do you force a template to start at a physical position even if the up station geometry or stationing changes? During this presentation we will explore the rules and relationships between civil elements to better understand what updates automatically. We will share tips and techniques that affect the rules that are created and how they are evaluated.