The given maps illustrate how a particular town called Fostery changed from 1980 to 2015.
Overall, the town had undergone significant transformations over the period of 35 years, marked by the addition of new amenities especially in the eastern corner of the town, while the existing infrastructure in the west got renovated.
Looking first at the center of the map, the most significant change would be that the crossroad was changed to a roundabout in 2015. In the northeast corner of the town, there were new buildings for commercial purposes being added, and old buildings for residential purposes being removed: The terrace houses on the right were demolished and replaced by a new supermarket coupled with a large car park, the hotels remained the same, but the grocery shops and block of flats in front of it were knocked down. Regarding the bottom-right corner of the map, the large field gave its place to the warehouses for industrial purposes.
Turning our focus to the layout of the left hand side of the map, the residential and entertainment areas were modernized. Notably, the tennis courts located at the bottom were replaced by a sports center coupled with a small car park. While the clusters of similar yellow houses were remained unchanged, the park below them was converted into terraces of houses, next to a new park.