by the Potomac and Rappahannock Transportation Commission DC Streetcar – 1 streetcar line, owned by the District of Columbia Department of Transportation and operated by a private contractor West Albuquerque-Santa Fe New Mexico Rail Runner Express – 1 commuter rail line, operated by the New Mexico Department of Transportation Denver RTD Rail – 4 heavy rail lines and 6 light rail lines with two under construction, operated by the Regional Transportation District Las Vegas Las Vegas Monorail – 1 monorail line operated by the Las Vegas Monorail Company Los Angeles-Inland Empire Los Angeles County Metro Rail – 2 metro lines, 4 light rail lines, operated by Los Angeles County Metropolitan Transportation Authority Metrolink – 7 commuter rail lines, operated by Southern California Regional Rail Authority Phoenix Valley Metro Rail – 1 light rail line, operated by Valley Metro Portland MAX Light Rail – 5 light rail lines, operated by TriMet Portland Streetcar – 2 streetcar lines, owned by City of Portland, managed by a non-profit corporation, operated by TriMet WES Commuter Rail – 1 commuter rail line, operated by TriMet Sacramento Sacramento RT Light Rail – 3 light rail lines, operated by Sacramento Regional Transit District Salt Lake City The FrontRunner – 1 commuter rail train, operated by Utah Transit Authority (UTA) S Line streetcar – 1 streetcar line, with more planned, operated by UTA TRAX – 3 light rail lines, with more lines planned, operated by UTA San Diego San Diego Trolley – 3 light rail lines operated by San Diego Metropolitan Transit System The Coaster – 1 commuter rail line; Sprinter – 1 commuter rail line, operated by North County Transit District San Francisco-Oakland-San Jose (Bay Area) BART – 5 rapid transit lines, and one DMU light rail line, operated by San Francisco Bay Area Rapid Transit District Muni Metro – 6 light rail lines, with one under construction; F Line – 1 streetcar line, operated by San Francisco Municipal Railway VTA Light Rail – 3 light rail lines, operated by Santa Clara Valley Transportation Authority Caltrain –1 commuter rail line, operated by the Peninsula Corridor Joint Powers Board Altamont Corridor Express – 1 commuter rail line, operated by the San Joaquin Regional Rail Commission Joint Powers Board SMART Train – 1 commuter rail line, to be operated by the Sonoma-Marin Area Rail Transit District Seattle-Tacoma Link light rail – 2 light rail lines (one in Tacoma), with