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The Regional Connector Transit Corridor (also known as the Regional Connector, Downtown Connector or Downtown Light-Rail Connector) is an under-construction light rail subway corridor through Downtown Los Angeles to connect the Blue and Expo Lines to the current Gold Line and Union Station. When completed, the connector will become part of the Los Angeles County Metro Rail System. The project would shift the entire Metro Rail system away from the existing X-shape network topology to a more flexible complex grid. The project is being implemented by the Los Angeles County Metropolitan Transportation Authority (Metro). It has been given high priority by Metro in its long-range plan and has funding set aside in Measure R. The Draft Environmental Impact Report (DEIR) was completed in September 2010 and selection of a preferred alternative was completed in late October 2010. The Final Environmental Impact Report (FEIR) was certified by the Metro Board on April 26, 2012. Pre-construction on the project began in December 2012. The contract for heavy construction on the project was signed on July 9, 2014; the official groundbreaking for heavy construction was held on September 30, 2014. Metro hopes to complete construction and begin revenue service by 2020. ==Background== The connector was envisioned as early as 1984 when planning and building the Metro Blue Line, and restudied with a through connection in the Pasadena Light Rail Corridor studies in 1990. LACMTA originally envisioned the Blue Line running through Downtown L.A. to Union Station and onward to Pasadena with potential future lines to the northwest (Burbank/Glendale) and to the south and west (Exposition Park/Santa Monica). The connector was not completed due to lack of funds and realignment of the Red Line Eastside Extension, which later became an extension of the Pasadena Gold Line. The connector was formally studied for the first time as a standalone project in a Major Investment Study in 1992–1993, in preparation of the Long Range Transportation Plan. The project was revived in 2004, when LACMTA staff initiated a technical feasibility assessment for a potential regional connector. This study focused on conceptual methods to provide a regional connector and to alleviate potential operational constraints. The 2004 staff study looked at the potential alignments that could not be entirely underground,〔 due to funding constraints from the voter-approved 1998 Prop A ban on local county subway funding. Most of the alignments were under Flower Street, surfacing between 5th Street and 1st Street and proceeding east to Alameda Street, connecting to the Eastside light rail corridor (now part of the Metro Gold Line), and continuing either north toward Union Station and Azusa, or east toward East Los Angeles. Most alignments had stations at the following locations: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Regional Connector Transit Corridor」の詳細全文を読む スポンサード リンク
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