a second under construction, operated by Sound Transit Sounder Commuter Rail – 1 commuter rail line, operated by Sound Transit Seattle Streetcar – 2 streetcar lines, owned by City of Seattle and operated under contract by King County Metro Tucson, Arizona Sun Link – 1 streetcar line, owned by the City of Tucson and operated by a private contractor Systems under construction Dallas-Fort Worth Silver Line – commuter rail line, to be operated by Dallas Area Rapid Transit Honolulu Honolulu Rail Transit – 1 metro rail line, to be operated by TheBus Mexico City Toluca–Mexico City commuter rail – 1 commuter rail line, to be operated by the Secretariat of Communications and Transportation Montreal Réseau express métropolitain - repurposing and expanding the Deux-Montagnes line Orange County, CA OC Streetcar – 1 streetcar line, to be operated by Orange County Transportation Authority Tempe, AZ Tempe Streetcar – 1 streetcar line, to be operated by Valley Metro Toronto Transit City/The Big Move projects – 1 light rail line (Eglinton Crosstown line), with more in planning, to be operated by the Toronto Transit Commission Washington DC Metropolitan Area Purple Line (Maryland) – 1 light rail line, to be operated by Purple Line Transit Partners, and owned by the Maryland Transit Administration Approved systems preparing for construction Charlotte LYNX Purple Line – 1 commuter rail line, to be operated by LYNX Rapid Transit Services San Juan San Juan-Caguas Rail – 1 commuter rail line, to be operated by Puerto Rico Department of Transportation and Public Works See also List of rail transit systems in the United States (currently operating systems only) List of railroad bankruptcies in North America References Transit North America Rail