Petri net tool for the construction of street networks

The street network of a city is a dynamic entity in continuous change. Sometimes change can be seen as ´per-manent´, sometimes as ´temporary.´ New streets or changes to existing streets can be seen as permanent. Signal malfunctions, potholes, accidents change the capacity of the network can be seen as a temporary change. The dynamic nature of the network requires a tool to model and analyse it; while allowing constants updates. This work proposes a Petri net tool that allows the user to flexibly model, modify and analyze in a progressive fashion a street network. An example of its use is included. The work is restricted to the definition of the network.