Container Housing units are related to the site and land occupied during a certain amount of time by the need of water supply and evacuation, electricity, telecomunications, etc. Plug-in city is a concept that is developing as more units capable of moving by intermodal means are brougt up to the market. Local site is thus of most importance on correct container housing units use.
Modular shipping containers are typically referred to as isotainers. In some military applications, the slang term "Combat Housing Unit" has also gained acceptance.