Top Features in Aimsun Hybrid Simulation The Aimsun hybrid simulator gives you simultaneous microscopic and mesoscopic simulation, allowing you to model large areas while zooming in on all areas that require a finer level of detail. Combining an event-based mesoscopic model with a more detailed time-sliced microsimulator offers a best-of-both-worlds scenario, blending superior computational efficiency with precise representation of traffic dynamics. Hybrid micro-meso simulation in Aimsun traffic modelling software The hybrid simulator features the following: Definition of areas for microscopic simulation within a mesoscopically simulated network Legion for Aimsun available inside the microscopic areas Demand definition using OD matrices or traffic states Unified statistics collection Look-ahead propagation between microscopic and mesoscopic areas Dynamic traffic assignment based on stochastic route choice Hybrid simulator applicable to sub-networks Dynamic traffic assignment based on dynamic user equilibrium Traffic management Travel demand modelling brings true integration Four-step demand modelling is another step towards true integration: you can start a transportation modelling project from scratch, entering raw geographical and socio-economic data and follow the process all the way through to simulation without having to use a separate package. No more interfacing with external traffic demand models for importing data as a starting point or as a means of redistributing demand from one mode to another or to estimate the impact that capacity changes have on overall demand levels. Four-step demand modelling Aimsun Benefits of a single multi-purpose, multi-layer simulation package Choose the right tool for the right project rather fitting projects around the tools. Build extensible simulation models on a larger and larger scale using a single all-in-one package. Eliminate cumbersome and error-prone manual interfacing between different macroscopic, mesoscopic and microscopic software packages. Reduce administrative and maintenance costs and expertise turnover. User friendliness Designed by traffic engineers for traffic engineers, the Aimsun user interface (UI) ticks as many boxes as possible on your wish list: Modelling, simulation and output analysis in a single environment Intuitive, highly visual and mouse-driven user interface Simultaneous 2D and 3D (micro only) views Easy-to-visualise graphical outputs Undo-Redo Copy and paste Table views for quick object searches Multiple project previsions Comparison of different scenarios External datasets (field measurements or other scenarios) Python scripting for automating repetitive tasks