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Aimsun Next is a comprehensive and multi-resolution traffic simulation and transport modelling platform widely used by transport planners, civil engineers, and government agencies to evaluate and optimise transportation networks. It supports three key levels of modelling—microscopic (vehicle-level detail), mesoscopic (traffic stream-level dynamics), and macroscopic (network-wide flow analysis)—making it versatile for projects ranging from a single intersection to an entire urban corridor or city. One of its most powerful features is Dynamic Traffic Assignment (DTA), which simulates how drivers adapt routes in response to congestion and changing travel conditions in real time. This enables users to evaluate policy decisions, infrastructure changes, or disruptions under dynamic conditions, which traditional static models fail to capture.

Aimsun Next allows simulation of various transport modes including private vehicles, buses, light rail, and pedestrians, with detailed behaviour such as signal response, lane changes, stop dwell times, and multimodal transfers. The software also supports scenario management, enabling the comparison of base cases with proposed interventions, such as traffic signal re-timings, new road links, transit priority schemes, or congestion pricing policies. Integration with GIS, Python scripting, and external databases makes it suitable for complex modelling workflows, automation, and data-driven urban mobility planning.

Professionally, Aimsun Next is frequently used for strategic modelling, real-time traffic management, ITS planning, and evaluating sustainable transport initiatives. In projects such as the Brisbane Metro and city-wide Olympic readiness studies, the software’s hybrid simulation approach is valued for balancing detail with computational efficiency. With its strong analytical capability, support for policy evaluation, and flexibility across transport scales, Aimsun Next plays a critical role in modern intelligent transport systems and smart city applications.

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