Traffic Prediction

Aimsun - A Siemens Business

Aimsun is an industry leader in behavior-based traffic simulation, with expertise developed over 25 years in transport modeling software and services. Aimsun’s fully integrated software solutions complement the Yunex Traffic portfolio in delivering strategic transportation planning and real-time mobility management by simulating future traffic flows. From the design engineering and implementation phase right up to the daily operation, traffic engineers and system operators can rely on industry-leading tools and services for planning, data supply, administration, and operation of their traffic control systems.

Aimsun Next - traffic modeling

Aimsun Next

Aimsun Next software helps cities to develop transportation models that can be used to design, plan, and deliver transport solutions: from the most minor junction improvement to region-wide infrastructure and land-use developments.

  • Fully integrated modeling is what makes Aimsun unique
  • Aimsun Next: model pedestrians, bikes and how people use public transportation
  • Aimsun Next for scenario testing and management prior to special events (Toronto Games)
  • Mesoscopic simulation of the whole of Singapore
  • Aimsun software combines simulation with machine learning to support on-demand transport and mobility as a service.

Benefits and Highlights

Speed

Aimsun Next can simulate entire cities much faster than real time: A microscopic model of Singapore can run 2-3 times faster than real time on a normal laptop. The meso model is 4-6 times faster still. For large models, this difference is make-or-break. For smaller models, it allows for more ‘what if?’ scenarios, iterations and sensitivity analyses with the same time budget. 

Speed and scope

Integrated macro, meso and micro modeling levels allow you to gradually extend your model’s boundaries without having to change your software or sacrifice speed – thanks to the hybrid simulator you can zoom in and out at will, seeing close-up detail only where you really need it.

Everything in one place

Store and compare multiple geometries and scenarios in a single file, eliminating menial copy-paste tasks and unmanageable file libraries.

Programmability

Customize your models: build API extensions in C++ or Python, and override behavioral models with the microSDK.

Flexibility

Aimsun Next’s dynamic traffic assignment (DTA) scheme gives you the option to model steady-state behavior as well as react to non-recurring scenarios. This is particularly important in corridor models and in large urban models where calibration of microsimulation assignments can be tricky.

Integration means cost effectiveness

An all-in-one model means a single payment for maintenance, training and support. It’s also faster to learn and faster to use, with no error-prone manual interfacing between different software packages. 

Aimsun Live - real-time traffic management

Aimsun Live

Aimsun Live empowers traffic management centers to accurately visualize network conditions before they arise and mitigate and manage incidents effectively.  By providing operator decision support in selecting response plans, the Aimsun Live solution simulates the real-time outcomes, providing Key Performance Indicators to choose the best response.

  • Simulation-based Traffic Management
  • What is Aimsun Live?
  • Continuous comparison of forecast performances and field measurements
  • Aimsun Live user interface - traffic flow at intersections

Simulation-based traffic management

Simulation can significantly improve the accuracy and relevance of travel-time forecasts. Because it takes capacity changes and network effects into account, it is the only technique that can allow operators to compare the effectiveness of complex alternative traffic management strategies quickly and objectively.

Simulation of individual vehicles

Unlike traditional analytical forecasting processes, a simulation of individual vehicles permits an explicit and faithful emulation of ITS policies.

Unrestricted measures of effectiveness

With access to individual vehicle delays, travel times, position, pollutant emissions, speed, route and many other characteristics, the measures of effectiveness can be as complex as needed.

Rich dynamic traffic assignment

One of the key elements that makes Aimsun Live a unique solution for real-time forecasting and information provision is its rich and innovative combination of dynamic traffic assignment (DTA) techniques within the same simulation to give the most realistic representation possible of network behavior.

Continuous self-monitoring

To ensure the best possible forecasting accuracy, Aimsun Live includes a module that continuously compares forecast performances against field measurements received once the prediction period has passed.

  • Choice of the most appropriate modeling level (micro-meso-hybrid)
  • Adaptable to the user’s requirements
  • Customizable user interface
  • Quality assurance module: comparison of predictions and real data
  • Comprehensive analysis of travel patterns
  • Planned, but also non-recurrent and unexpected events
  • Speed: results in 2-5 minutes
  • Modular architecture
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Traffic Prediction

From the engineering and implementation phase right up to daily operation, traffic engineers and system operators can rely on top-of-the-range  tools for planning, data supply, administration and operation of their traffic control systems.