SUMO - Simulation of Urban Mobility

"Simulation of Urban MObility" (SUMO) is an open source, highly portable, microscopic traffic simulation package designed to handle large road networks and different modes of transport. It is mainly developed by employees of the Institute of Transportation Systems at the German Aerospace Center. It allows for intermodal simulation including pedestrians and comes with a large set of tools for scenario creation.

SUMO allows modelling and analyzing intermodal traffic systems, including road vehicles, public transport, cargo logistics and pedestrians. Included with SUMO is a wealth of supporting tools, which handle tasks like route finding, visualization, network import and emission calculation. SUMO can be enhanced with custom models and it provides various APIs to remotely control and influence the simulation.

Traffic simulations facilitate the evaluation of infrastructure changes as well as policy changes before implementing them on the road. For example, the effectiveness of environmental zones or traffic light control algorithms can be tested and optimized in a simulation before being deployed in the real world.