Simulation of Urban MObility (SUMO) - "Simulation of Urban MObility" (SUMO) is an open source, highly portable, microscopic and continuous road traffic simulation package designed to handle large road networks. SUMO is licensed under the Eclipse Public License V2.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
AnyLogic - AnyLogic has changed simulation modeling and expanded its application into complex business environments. The unmatched flexibility of multimethod modeling allows users to capture the complexity of virtually any system, at any level of detail.
GNU Octave - GNU Octave is a programming language for scientific computing.
PTV Visum - PTV Visum is used to model transport networks and travel demand, to analyse expected traffic flows...
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.