*3.1. Spatial Data*

Results of the GEOBIA found that urbanised areas increased from 114 to 151 km2, a percentage increase of almost 3% of the total land mass measured. Greenspace, too, increased by just under 5%; 986 to 1045 km2.

For the 1998 imagery, overall accuracy was 75% (producer accuracy 72%; user accuracy 84%). The 2018 imagery returned an overall accuracy of 87% (84% producer and 90% user accuracies). This difference in accuracy was expected due to the quality differences in the Landsat 5 versus Landsat 8 imagery. Final corrections were made to the classified imagery before extraction of the relevant land use data for analysis (Figure 2).

**Figure 2.** Final classified images of land use change with combined land classes.
