Most movement decisions in LEGION Model Builder can be made by the Entities themselves as part of LEGION's 'Auto-navigation' system. However, your modelling choices influence, supplement and sometimes override important aspects of Entity decision making. Understanding the principles governing navigation and the different ways of interacting with them is therefore essential to building good quality models.

Because LEGION is a true microscopic model, crowd patterns emerge as a result of interactions between Entities. Your main goal should therefore be to provide appropriate information (no more or less than is realistic) to the Entities so they can make good quality decisions.