Research Article

Traffic Multiresolution Modeling and Consistency Analysis of Urban Expressway Based on Asynchronous Integration Strategy

Table 2

Comparative analysis of different resolution traffic simulation models.

Item Single resolution traffic simulation model Multiresolution traffic simulation model
Microscopic modelMesoscopic modelMacroscopic modelTwo-level hybrid traffic modelThree-level and above hybrid traffic model

Theoretical backgroundDiscrete event system modeling, fixed-stepDiscrete event system modeling, fixed-stepContinuous system modeling, numerical simulationSimilar to the distributed simulationMultiresolution modeling and simulation theory

Simulation objectSingle vehicleSingle vehicle, driven by queueVehicle is regarded as fluid or gasDepending on the hybrid modelObjects can be dynamically changed on demand

Core modelCar-following model, lane changing model, cellular modelQueuing model, flow-velocity-density model, allocation modelTo describe the system evolution rule in differential equations derived from the flow conservationMathematical derivation or interfaces defined in original modelIntegration of consistency maintenance of different resolution models

ImplementationTime series method, event-based methodNumerical methods, time series method, event-based methodNumerical methodsParameter conversion, partial data sharingIntegrated simulation, multiresolution modeling method

ApplicationMicrodesign analysis such as intersection channeling and signal timingDynamic network simulation, but limited to the scope of the networkPlanning analysis of large-scale road networkDepends on hybrid modelsGradual application from network to regional to intersection

Typical systemVISSIM, Aimsun, PARAMICS, CORSIMDynasmart, DynaMIT, Dynameq, TransimsNETFLO2, FREFLODynaCHINATransmodeler