Irvine was a plannedcity that was built in the 1960s/70s - each competent was designed to make the city self-sufficient
Irvine is an edge city meaning it's a cluster of businesses, retail, and commercial land use away from the centralbusinessdistrict (CBD)
Northwood is a planned and self-sufficient urban development meaning it has housing, employment opportunities, and adequate services without the help from external locations