High Quality Content by WIKIPEDIA articles! The Portland Transit Mall is a set of public transit corridors through the center of downtown Portland, Oregon, United States. More specifically, it is a pair of one-way streets?one for northbound traffic, the other for southbound?along which two of the three lanes are restricted to transit vehicles only. Until 2009, this meant buses-only, but in 2009 light rail was added to the mall. Between 2007 and 2009 the transit mall was rebuilt and extended southwards, and it reopened for buses on May 24, 2009.