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Item | Single resolution traffic simulation model | Multiresolution traffic simulation model |
Microscopic model | Mesoscopic model | Macroscopic model | Two-level hybrid traffic model | Three-level and above hybrid traffic model |
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Theoretical background | Discrete event system modeling, fixed-step | Discrete event system modeling, fixed-step | Continuous system modeling, numerical simulation | Similar to the distributed simulation | Multiresolution modeling and simulation theory |
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Simulation object | Single vehicle | Single vehicle, driven by queue | Vehicle is regarded as fluid or gas | Depending on the hybrid model | Objects can be dynamically changed on demand |
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Core model | Car-following model, lane changing model, cellular model | Queuing model, flow-velocity-density model, allocation model | To describe the system evolution rule in differential equations derived from the flow conservation | Mathematical derivation or interfaces defined in original model | Integration of consistency maintenance of different resolution models |
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Implementation | Time series method, event-based method | Numerical methods, time series method, event-based method | Numerical methods | Parameter conversion, partial data sharing | Integrated simulation, multiresolution modeling method |
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Application | Microdesign analysis such as intersection channeling and signal timing | Dynamic network simulation, but limited to the scope of the network | Planning analysis of large-scale road network | Depends on hybrid models | Gradual application from network to regional to intersection |
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Typical system | VISSIM, Aimsun, PARAMICS, CORSIM | Dynasmart, DynaMIT, Dynameq, Transims | NETFLO2, FREFLO | DynaCHINA | Transmodeler |
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