This paper defines paths into the integration of urban simulation and new methods of Information Visualization (IV) first observing the current state of IV methods in general, and visualization in urban modelling and simulation in particular. Secondly, it proposes a set of issues where progress in forms of integrating IV methods into urban simulation techniques can be made – namely, through the concept of ontologies (rules of relations between categories of objects and information) – in stages like problem definition and analysis, information processing and the generation of user-friendly graphic outputs for simulated scenarios and analyses.