The Metropolitan Area Express (MAX) is a light rail system serving the Portland metropolitan area in the U.S. state of Oregon. Owned and operated by TriMet, it consists of five lines connecting the six sections of Portland; the communities of Beaverton, Clackamas, Gresham, Hillsboro, Milwaukie, and Oak Grove; and Portland International Airport to Portland City Center. Trains run seven days a week with headways of between 30 minutes off-peak and three minutes during rush hours. In 2019, MAX had an average daily ridership of 120,900, or 38.8 million annually. Due to the COVID-19 pandemic, which impacted public transit use globally, annual ridership plummeted, with only 14.8 million riders recorded in 2021.
The MAX Yellow Line is a light rail line serving Portland, Oregon, United States. Operated by TriMet as part of the MAX Light Rail system, it connects North Portland, Portland City Center, and Portland State University (PSU). The line serves 17 stations; it runs north–south from Expo Center station to PSU South/Southwest 6th and College station, interlining with the Green and Orange lines within the Portland Transit Mall. Service runs for 21 hours per day with headways of up to 15 minutes. The Yellow Line is the fourth-busiest service in the MAX system; it carried an average 12,960 riders per weekday in September 2019.
Lloyd Center/Northeast 11th Avenue is a light rail station on the MAX Blue, Green and Red Lines in Portland, Oregon. It is the 10th stop eastbound on the Eastside MAX. The station is located on the 1200 block of Northeast Holladay Street in Lloyd District.
Mall/Southwest 4th Avenue and Mall/Southwest 5th Avenue were a pair of light rail stations in Portland, Oregon, United States, served by TriMet as part of the MAX Light Rail system. Built into the sidewalk at Southwest Yamhill and Morrison streets between 4th and 5th avenues in downtown Portland, the Mall stations were served by the Blue and Red lines upon closing. They had also been served by the Yellow Line from May 2004 to August 2009.
Library/Southwest 9th Avenue and Galleria/Southwest 10th Avenue are light rail stops on the MAX Blue and Red Lines in Portland, Oregon. It was the original western terminus and is now the Eastside MAX line's first stop eastbound/last stop westbound in downtown.
Pioneer Square South and Pioneer Square North are a pair of light rail stations in Portland, Oregon, United States, served by TriMet as part of the MAX Light Rail system. Situated directly west of the Portland Transit Mall at Pioneer Courthouse Square in downtown Portland, they occupy the sidewalk on Yamhill and Morrison streets between Broadway and 6th Avenue. The stations consist of one side platform each; trains traveling eastbound stop at Pioneer Square South while trains traveling westbound stop at Pioneer Square North.
Like transportation in the rest of the United States, the primary mode of local transportation in Portland, Oregon is the automobile. Metro, the metropolitan area's regional government, has a regional master plan in which transit-oriented development plays a major role. This approach, part of the new urbanism, promotes mixed-use and high-density development around light rail stops and transit centers, and the investment of the metropolitan area's share of federal tax dollars into multiple modes of transportation. In the United States, this focus is atypical in an era when automobile use led many areas to neglect their core cities in favor of development along interstate highways, in suburbs, and satellite cities.
Portland is "an international pioneer in transit orientated developments."
Downtown Portland is the central business district of Portland, Oregon, United States. It is on the west bank of the Willamette River in the northeastern corner of the southwest section of the city and where most of the city's high-rise buildings are found.
Pioneer Place is an upscale, urban shopping mall in downtown Portland, Oregon. It consists of four blocks of retail, dining, parking, and an office tower named Pioneer Tower. The mall itself is spread out between four buildings, interconnected by skywalks or underground mall sections. The footprint of the entire complex consists of four full city blocks, bisected by SW Yamhill and Fourth, bounded north-south by SW Morrison and Taylor Streets and east-west by SW Third and Fifth Avenues. In 2014, Pioneer Place was the third-highest selling mall in the United States based on sales per square foot, sitting just behind Bal Harbour Shops and The Grove at Farmers Market.
The MAX Green Line is a light rail service in Portland, Oregon, United States, operated by TriMet as part of the MAX Light Rail system. It is 15 miles (24.1 km) long and serves 30 stations from the PSU South stations to Clackamas Town Center Transit Center; it connects Portland State University (PSU), Portland City Center, Northeast Portland, Southeast Portland, and Clackamas. The Green Line is the only service that shares parts of its route with the four other MAX services, sharing the Portland Transit Mall with the Orange and Yellow lines and the Banfield segment of the Eastside MAX with the Blue and Red lines. Southbound from Gateway/Northeast 99th Avenue Transit Center, it operates the Interstate 205 (I-205) segment through to Clackamas Town Center. Service runs for approximately 211⁄2 hours daily with a headway of 15 minutes during most of the day. It is the third-busiest line in the system, carrying an average of 19,160 riders per day on weekdays in September 2019.
The MAX Orange Line is a light rail line serving the Portland metropolitan area in the U.S. state of Oregon. Operated by TriMet as part of the MAX Light Rail system, it connects Portland City Center, Portland State University (PSU), Southeast Portland, Milwaukie, and Oak Grove. The line serves 17 stations and runs for 201⁄2 hours per day with headways of up to 15 minutes. It averaged 3,480 daily weekday riders in September 2020.
The Portland Transit Mall is a 1.2-mile (1.9 km) public transit corridor that travels north–south through the center of downtown in Portland, Oregon, United States. It comprises a pair of one-way streets—6th Avenue for northbound traffic and 5th Avenue for southbound—along which two of three lanes are restricted to transit buses and light rail vehicles only. As of September 2022, the corridor is served by the Green, Orange, and Yellow lines of MAX Light Rail; Frequent Express; and over a dozen local bus routes, all of which are services of TriMet, the transit agency operating within the Oregon side of the Portland metropolitan area. C-Tran, the transit agency for Clark County, Washington, additionally serves it with two express bus routes—#105 I-5 Express and #164 Fisher’s Landing Express.
PSU South/Southwest 6th and College and PSU South/Southwest 5th and Jackson are a pair of light rail stations on the MAX Green, Orange and Yellow Lines in Portland, Oregon. Together, they serve as the southern passenger terminus—one for departures only and the other for arrivals only—of the Portland Transit Mall MAX line. The stations opened on September 2, 2012.
Union Station/Northwest 6th & Hoyt and Union Station/Northwest 5th & Glisan are light rail stations on the MAX Green, Orange and Yellow Lines in Portland, Oregon. They are the first stops southbound on the Portland Transit Mall MAX extension. The Union Station/Northwest 6th & Hoyt Street station is served only by the Green and Yellow Lines, and the Union Station/Northwest 5th & Glisan Street station is served only by the Green and Orange Lines. Originally, from the opening of these stations in 2009 until 2015, the Yellow Line served both, but in September 2015 the then-new Orange Line replaced the Yellow Line at all southbound stations on the transit mall.
Northwest 6th & Davis and Northwest 5th & Couch are a pair of light rail stations on the MAX Green, Orange, and Yellow Lines in Portland, Oregon. It is the second stop southbound on the Portland Transit Mall extension.
Southwest 6th & Pine and Southwest 5th & Oak stations are a pair of light rail stations on the MAX Green, Orange and Yellow Lines in Portland, Oregon. It is the 3rd stop southbound on the Portland Transit Mall extension.
Southwest 6th & Madison Street and City Hall/Southwest 5th & Jefferson Street stations are a pair of light rail stations on the MAX Green, Orange and Yellow Lines in Portland, Oregon. It is the fifth stop southbound on the Portland Transit Mall extension.
The PSU Urban Center stations are light rail stations on the MAX Green, Orange and Yellow Lines in downtown Portland, Oregon, United States, located adjacent to the PSU Urban Center, of Portland State University. The northbound platform is the PSU Urban Center/Southwest 6th & Montgomery station, and the southbound platform is the PSU Urban Center/Southwest 5th & Mill station. The stations opened on August 30, 2009, and for the next three years they were temporarily the southern passenger terminus of the Portland Transit Mall MAX extension, awaiting construction of the PSU South stations. The latter opened on September 2, 2012, and the change made PSU Urban Center the second stop northbound and the next-to-last stop southbound on the Portland Mall MAX lines.
South Waterfront/South Moody, formerly South Waterfront/Southwest Moody, is a combined light rail and bus station located at 698 Southwest Porter Street in the South Waterfront neighborhood of Portland, Oregon, at the west end of the Tilikum Crossing bridge. It is serviced by the MAX Orange Line and TriMet buses. Portland Streetcar travels through it but does not service it.
Pioneer Place/SW 5th 
Portland Transit Mall 
MAX Light Rail:
