Settlement patterns are formed when houses, buildings, or trees are grouped together or far apart. This is because settlement patterns refer to the spatial arrangement of human activities and structures in a given area. The way houses, buildings, or trees are clustered or dispersed can indicate different types of settlement patterns, such as rural, suburban, or urban. Cars, on the other hand, are not typically considered in the formation of settlement patterns as they are mobile and can move freely within and between settlements.