What do you call a group of roller coasters?

A group of Roller Coasters is often referred to as a "coaster collection" or simply a "coaster lineup." In amusement parks, multiple roller coasters are typically organized in specific areas, which may be themed or categorized by type, such as wooden or steel coasters. Some enthusiasts may also use the term "coaster family" to describe a group of coasters that are related in design or function.