In this paper, we present and describe VanetMobiSim, a generator of realistic vehicular movement traces for telecommunication networks simulators. VanetMobiSim mobility description is validated by illustrating how the interaction between featured macroand micro-mobility is able to reproduce typical phenomena of vehicular traffic. Categories and Subject Descriptors: I.6.8 [Simulation and Modeling]: Types of Simulation—Discrete event and visual; I.6.5 [Simulation and Modeling]: Model Development; I.6.6 [Simulation Output Analysis] General Terms: Design, Performance