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| MAX Green Line | |
|---|---|
| Name | MAX Green Line |
| Operator | TriMet |
| Locale | Portland, Oregon |
| Type | Light rail |
| Stations | 18 |
| Opened | 2009 |
| Line length | 15.0 mi |
| Electrification | Overhead catenary |
MAX Green Line The MAX Green Line is a light rail service in Portland, Oregon, operated by TriMet and forming part of the MAX Light Rail network. The line connects downtown Portland, Oregon with Portland State University, the Oregon Convention Center, and neighborhoods along the Interstate 205 corridor to Clackamas County, Oregon. It links with other MAX lines at key transfer points such as Gateway/Northeast 99th Avenue Transit Center, Library/Community College, and Rose Quarter Transit Center.
The Green Line follows a route from Portland State University south and east through downtown Portland, Oregon then along the I-205 (Oregon), serving Inner Southeast Portland, North Tabor, Montavilla, and terminating in Clackamas, Oregon. It interlines with the MAX Red Line at Gateway/Northeast 99th Avenue Transit Center and with the MAX Blue Line and MAX Red Line at Library/Community College and Rose Quarter Transit Center. Service patterns typically run with headways coordinated with Portland Streetcar schedules near downtown and with TriMet bus connections at intermodal hubs like Washington Park and Halsey–SE 122nd Ave Station. Weekend and peak frequencies are set by TriMet service plans tied to Clackamas Town Center, Oregon Health & Science University shifts, and Portland International Airport transfer demands.
Planning for the line drew on precedents set by the expansion of the MAX Blue Line and the MAX Red Line in the late 20th and early 21st centuries. The corridor gained momentum following studies by Metro and funding initiatives involving the Federal Transit Administration's New Starts program and local ballot measures in Multnomah County, Clackamas County, and Washington County. Construction began after environmental reviews under the National Environmental Policy Act and permits coordinated with the Oregon Department of Transportation. The line opened in 2009 amid ceremonies attended by officials from TriMet, the City of Portland, and representatives from U.S. Department of Transportation. Its launch followed other regional projects such as the 2004 Interstate MAX expansions and influenced later proposals like the Portland-Milwaukie Light Rail Project.
TriMet operates the service using Siemens SD660 and newer Siemens S70 light rail vehicles, types also used on the MAX Red Line and MAX Blue Line. Vehicles draw power from an overhead catenary system maintained in coordination with the Oregon Rail Heritage Foundation for preservation events and the Port of Portland for corridor crossings. Operations are managed from TriMet control centers that coordinate with Portland Bureau of Transportation traffic signal priority systems and Oregon Department of Transportation right-of-way authorities. Crew staffing, safety protocols, and training reference standards from the Federal Transit Administration and labor agreements with the Amalgamated Transit Union locals representing operators and maintenance staff.
The Green Line serves 18 stations, including major stops at Portland State University, Providence Park, Lloyd Center, and Clackamas Town Center Transit Center. Stations incorporate public art commissioned through the Regional Arts & Culture Council and designs reviewed by the National Trust for Historic Preservation where adjacent to historic districts like Buckman and Kerns. Accessibility features comply with the Americans with Disabilities Act of 1990 standards and include platforms compatible with low-floor vehicle boarding used across the MAX Light Rail network.
Ridership trends on the line have been influenced by commuting patterns to destinations such as Oregon Health & Science University, Portland State University, and retail centers like Clackamas Town Center. Performance metrics reported by TriMet track on-time performance, mean distance between failures, and farebox recovery rates, benchmarking against peer agencies including the San Francisco Municipal Transportation Agency and the Sound Transit system. Passenger counts rise during events at venues like the Moda Center and during conventions at the Oregon Convention Center, with seasonal and weekday versus weekend variability similar to other transit corridors studied by American Public Transportation Association.
The Green Line's infrastructure includes light rail tracks, overhead catenary, traction power substations, and grade-separated sections near freeway interchanges managed with coordination among Port of Portland, Multnomah County, and Clackamas County. Maintenance facilities at TriMet yards handle vehicle overhauls and are subject to regulatory oversight by the Federal Railroad Administration where applicable and environmental compliance with the Oregon Department of Environmental Quality. Trackwork and station upkeep are scheduled to minimize disruption to service and to integrate with city projects like Portland Bureau of Transportation street improvements and utility relocations by Portland Water Bureau.
Proposals affecting the corridor include potential extensions studied by Metro and TriMet, transit-oriented development initiatives in partnership with the City of Portland Office of Bureau of Planning and Sustainability, and federal grant applications to the Federal Transit Administration for capital improvements. Projects under discussion have referenced regional plans such as the 2018 Regional Transportation Plan and proposals to better connect to Portland International Airport and growth centers in Clackamas County. Stakeholders include community groups from neighborhoods like Powellhurst-Gilbert and business associations such as the Portland Business Alliance.