In this book the different steps in the operationalization of an activity-based model for Flanders (Belgium) inside the FEATHERS activity-based simulation framework are worked out. FEATHERS, with its modular structure, is meant to accommodate different activity-based models so that this framework can be used as a research instrument for transportation researchers. Furthermore, in order to make use of a specific activity-based model for Flanders, this book reports on the validation process of the activity-based model that was chosen. As the activity-based model inside FEATHERS performs well, this micro simulation framework together with its current activity-based model can be used in a next step to investigate transportation demand management policies for Flanders such as a telecommuting scenario and an electric vehicles power demand scenario.