Among urban planners, there is probably not a more revered urban area in the world than Portland (Oregon). The Portland metropolitan area and its core urban area , principally located in Oregon, stretches across the Columbia River into the state of Washington (Figure 1). Nearly four decades ago, the state of Oregon adopted strong urban planning requirements, including the requirement of an urban growth boundary. Two principal purposes of the resulting policies (referred to as “smart growth,” “urban containment, “compact cities,” etc.) were densification and transferring travel demand from cars to transit.

To read the original article: The Evolving Urban Form: Portland | Newgeography.com