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Blue Line (Pittsburgh)
The Blue Line is a Pittsburgh Light Rail line that runs between Downtown Pittsburgh via the Overbrook neighborhood to Library (formerly the 47L Library via Overbrook route) and South Hills Village (formerly 47S South Hills Village via Overbrook).
== History ==
The line from South Hills Junction to Castle Shannon (now called the Overbrook Line) was first constructed by the Pittsburgh and Castle Shannon Railroad (P&CSRR) between 1872 and 1874.〔(【引用サイトリンク】title=Historic American Engineering Record - Pittsburgh & Castle Shannon Railroad, Reflectorville Viaduct, Overbrook Trolley Line, crossing near Edgebrook Av, Pittsburgh, Allegheny County, PA )〕 In 1905 Pittsburgh Railways leased the route and between 1909 and 1910 converted it from narrow gauge to dual gauge and installed overhead power for trolleys.
Mid-20th century PCC streetcars continued to operate on the Overbrook Line until 1993, when concerns about the safety of the line led PAT to suspend service there pending reconstruction. This former Pittsburgh Railways trolley line had never been updated to current light rail system requirements. After receiving federal funding for Stage Two of the light rail system development, the Overbrook line was reconstructed as a fully rebuilt double-tracked line served by modern light rail vehicles, making this line a considerably faster commute.
The line was reopened on June 2, 2004 following major work which included doubling of the track and elimination of 22 traditional street level trolley stops in favor of eight new LRV style stations with platforms.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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