The modeling and corresponding simulation of the mobility behavior of objects in its complex environment are very important for the study and realization of location and spatial-aware systems. Contrariwise the simulation of mobility is reliant on a huge amount of environment information a spatial-aware system could deliver. Not only detailed road or path geometry information and demand estimation are necessary for mobility simulation but also sensor information like weather and street conditions, sudden events et cetera may improve the mobility simulation. So the modeling and simulation of mobility and spatial-aware systems can benefit from each other. In this paper we want to provide a concept how mobility modeling and simulation in traffic engineering can be integrated in an extended digital world model.