Next Generation Transportation Systems Simulation and Mobility Modeling

POLARIS was originally developed for US DOT’s FHWA to analyze transportation system management strategies involving emerging vehicle and information technologies. It has evolved into a high-performance computationally efficient tool that implements advanced travel and freight demand modeling, dynamic traffic assignment and transportation simulation into an integrated modeling platform. POLARIS features an integrated network-demand model, in which all the aspects of travel decisions can be modeled simultaneously:

  • Activity generation
  • Activity planning - departure time, destination choice, mode-choice
  • Multi-modal route choice
  • Activity planning and rescheduling
  • Freight and logistics planning
  • Fleet and transit service operational controls

POLARIS is sensitive to traffic management strategies, such as lane management, information provision, variable speed control and intersection control.

Integrated Network, Demand, Freight, Infrastructure and Energy Model

Product Highlights

  • Agent-based modeling framework
  • Implemented for multiple metro areas
  • High-performance C++ codebase
  • Integrated traffic, demand, freight and control
  • Designed for entire metro area simulations
  • Deployed on High-Performance Computing
  • Integration with external optimization solvers (CPLEX, Gurobi, GLPK)
  • 4-6 hr runtime for up to 10 million agents

Application Examples

  • Connected and automated vehicles
  • Mobility as a Service (MaaS)
  • Transit systems
  • Freight systems
  • Charging infrastructure
  • System level optimization

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