Fig. 1. Screen capture from a typical simulation run of the SOME model. The spatially autocorrelated and heterogeneous landscape is represented by shades of green, and brighter green represents higher aesthetic quality. The initial service center is located in the center of the landscape in yellow, and all other service centers are depicted in red. Residents are depicted using dark black squares. Last, the violet circle represents the boundary used in our sprawl measurements. The labels and circle were added for graphic illustration and are not displayed by typical model runs.