The given map depicts the changes that occurred on the island of Petrichor from 1987 to 2017.
Overall, Petrichor Island experienced significant changes between 1987 and 2017. There were noticeable developments in the land, which was previously covered with trees and had a low number of houses.
In 1987, the island of Petrichor had old ruins in the southern part. There were only a few houses on the west side of the island, along with a single tree. The central and northern to eastern parts of the island were predominantly covered with a large number of trees.
By 2017, Petrichor Island displayed a much more developed and urbanized landscape. Despite the old ruins in the south, the island had undergone significant changes. The few houses that were once on the west side had been replaced with apartment buildings, a shopping center, a hospital, and a new addition, a shoe factory, in the northern area. The central part now had a number of houses. Additionally, all the newly developed areas were connected by bus transportation links. However, in the east, there were still a considerable number of trees. Furthermore, airplanes were now seen flying over the island.
In summary, the island had transformed into an urban area with improved communication and transportation infrastructure across the region.