In this colloquia, Agrawala presents a new two-step approach for building automated visualization design systems. The first step is to analyze the best examples of hand-designed visualizations within a given domain. The second step is to encode these design principles as constraints within an optimization framework and algorithmically find the best visualization design.  Agrawala describes how a two-step approach was used to develop LineDrive, a real-time system for automatically designing route maps. Agrawala describes how this project parallels the LineDrive project and will show some early results. From the Series:CSE Colloquia - 2002