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Our objective at this stage is to complete the interconnection of urban system blocks in SysML and then to transform that SysML model to an equivalent model in a simulation tool, here Simulink (The MathWorks). The initial step in SysML is to create internal block diagrams (IBDs) showing the parts and their ports and to

Our structural model of the urban system is shown in Figure 1, with the overall system treated as a set of subsystems providing resources and/or services: utility, transportation, public services, etc. The Residential Subsystem, for example, provides labor as a service to other services. Each of these subsystems is further decomposed, i.e. utilities include water

Our structural model of the urban system is shown in Figure 1, with the overall system treated as a set of subsystems providing resources and/or services: utility, transportation, public services, etc. The Residential Subsystem, for example, provides labor as a service to other subsystems. Each of these subsystems is further decomposed, i.e. utilities include water

Effective systems development begins with a clear set of objectives, captured as requirements. In terms of building a model, we must consider several different types of requirements: Model Architecture requirements – which urban systems should be part of the model Model Simulation requirements – which performance factors should be calculated Urban System requirements – what

Effective systems development begins with a clear set of objectives, captured as requirements. In terms of building a model, we must consider several different types of requirements: Model Architecture requirements – which urban systems should be part of the model Model Simulation requirements – which performance factors should be calculated Urban System requirements – what

Modeling urban communities has been designated as a high priority target for improved systems engineering . World population is increasingly urbanized. In the US, the percentage of the population in metropolitan areas has shifted from 7% in 1820 to 51% in 1920 to 82% today. China looks to make the same shift