COMPUTATIONAL SOCIAL SCIENCE

ABM of Residential Segregation through Vector GIS

Constructing and Implementing an Agent-Based Model of Residential Segregation through Vector GIS

This model, presents a geographically explicit agent-based model, loosely coupled with vector GIS, which explicitly captures and uses geometrical data and socio economic attributes in the simulation process.

 

The ability to represent the urban environment as a series of points, line and polygons not only allows one to represent a range of different sized features such as houses or larger areas portrayed as the urban environment but is a move away from many agent-based models utilizing GIS which are rooted in grid-based structures. This model has been applied to the study of residential segregation, specifically creating a Schelling (1971) type of model within a hypothetical cityscape, thus demonstrating how this approach can be used for linking vector-based GIS and agent-based modeling. The paper attached below shows a selection of simulation experiments, highlighting the inner workings of the model and how aggregate patterns of segregation can emerge from the mild tastes and preferences of individual agents interacting locally over time. Furthermore, the paper suggests how this model could be extended and demonstrates the importance of explicit geographical space in the modeling process.

 

Figure: Basic segregation model structure

A paper describing this work:

Crooks, A. T. (2010), Constructing and Implementing an Agent-Based Model of Residential Segregation through Vector GIS, International Journal of Geographical Information Science, 24(5): 661-675.

A website accompanying this paper can be found here.

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