Like most traffic simulators, Aimsun software was originally developed to simulate European traffic. Involving little vehicle heterogeneity, its microscopic behavioral model is based on driving rules using lane-based discipline, priorities, stops, give-ways and cooperation. Those concepts do not hold in every country, however! With the aim of simulating significant portions of the Asian road network, we developed a new behavioral model, currently in beta, involving both decision taking and movement completion.
The beta introduces the modeling of lateral non-lane based movements in the Aimsun Next microsimulator. The possibility of activating non-lane based movements by vehicle type and section makes it very flexible and able to simulate situations ranging from the specific behavior of motorcycles in lane-based flows, e.g. in European cities such as Barcelona, to fully non-lane based traffic including vehicle types with a wide range of characteristics, such as those seen here at Cadbury Junction in Thane, India.

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