zoning

noun

the act or process of partitioning a city, town, or borough into zones reserved for different purposes (such as residence or business)
the set of ordinances by which partitioning of a city, town, or borough into zones is established and regulated
a method of delineating areas of contamination within an operating environment to simplify, speed up, and make more effective the decontamination process

Legislative action for the purpose of regulating the use of property and the construction of buildings within the area under the jurisdiction of the legislative body concerned.
“These towers are not only the product of advances in construction technology – and a global surfeit of super-rich buyers – but a zoning policy that allows a developer to acquire unused airspace nearby, add it to their own lot, and erect a vast structure without any kind of public review process taking place.”
The use of zones, such as fare zones.
“The system of zoning would lead logically to the introduction of the modern ticket barriers from 1987 (the Underground Ticketing System, or UTS), in that it allowed the software in the ticket gates to be relatively simple.”