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The 7 Flushing Local and <7> Flushing Express are two rapid transit services in the A Division of the New York City Subway, providing local and express services along the full length of the IRT Flushing Line. Its route emblem, or "bullet", is colored , with local service denoted by a (7) (within a circular bullet) and express service by a <7> (within a diamond-shaped bullet).〔(【引用サイトリンク】title=mta.info - Line Colors )〕 Both services operate between Main Street in Flushing, Queens and 34th Street – Hudson Yards in Chelsea, Manhattan. Local service operates at all times, while express service runs only during rush hours and early evenings in the peak direction and during special events. ==Service history== On June 13, 1915, the first test train on the IRT Flushing Line ran between Grand Central and Vernon Boulevard – Jackson Avenue, followed by the start of revenue service on June 22. Over the next thirteen years, the line was extended piece by piece between Times Square and Flushing – Main Street, after the former opened on March 14, 1927. Express service started in 1917. The service on the Flushing Line east of Queensboro Plaza was shared by the Interborough Rapid Transit Company and the Brooklyn–Manhattan Transit Corporation from 1912 to 1949; BMT trains were designated 9, while IRT services were designated 7 on maps only. The 7 designation was assigned to trains since the introduction of the front rollsigns on the R12 in 1948. Weekday midday and Saturday express service was discontinued on March 20, 1954; weekday midday express service was restored on November 29, 1971, but was again discontinued by August 29, 1975. From May 13, 1985, to August 21, 1989, the IRT Flushing Line was overhauled for improvements, including the installation of new track, repair of station structures and to improve line infrastructure. The major element was the replacement of rails on the Queens Boulevard viaduct. <7> express service was suspended for the duration of the project; however, extra 7 service was provided for Mets games and Flushing Meadows Park events. Upon the completion of the project, <7> express service was restored, but express trains bypassed 61st Street – Woodside because the Transit Authority was concerned about passengers transferring between local and express trains at that station. The stop was added a few months later after pressure from community opposition. In the mid-1990s, the MTA discovered that the Queens Boulevard viaduct structure was unstable, as rocks that were used to support the tracks as ballast became loose due to poor drainage, which, in turn, affected the integrity of the concrete structure overall. <7> express service was suspended again between 61st Street – Woodside and Queensboro Plaza; temporary platforms were installed to access the express track in the four intermediate stations. The work began in April 1993. When the viaduct reconstruction finished on March 31, 1997, full <7> express service was reinstated. Throughout this entire period, ridership grew steadily. In 1999, <7> express service was expanded from rush hours only to weekdays from 6:30 a.m. to 10:00 p.m. However, this expansion was cut back in 2009 due to frequent midday construction. Work has been underway since 2008 to convert the 7 service to accommodate CBTC. Expected to cost $585.9 million, CBTC will allow two additional trains per hour as well as two additional trains for the 7 Subway Extension, providing a 7% increase in capacity.〔 (At the former southern terminal, Times Square, service on the 7 was limited to 27 trains per hour (tph) as a result of the bumper blocks there. The current southern terminal at 34th Street has tail tracks to store rush-hour trains and can increase the service frequency to 29 tph.〔) New cars on order for the A Division (the R188 contract) are compatible with CBTC. Installation of CBTC and delivery of the trains will both be completed in 2016.〔(MTA's Q&A on Capital Program 2010-2014 )〕 The 7 Subway Extension, which travels west and south to 34th Street and 11th Avenue, near the Jacob K. Javits Convention Center in Hudson Yards, was delayed five times. Originally, it was scheduled to open in December 2013, but the station was finally opened on September 13, 2015. The 34th Street station's construction project itself will not be completed until the end of 2015. On November 16, 2010, New York City officials announced they are considering a further extension of the service across the Hudson River to the Secaucus Junction train station in New Jersey.〔(NYC Subway Line May Continue Into N.J. )〕 As of October 26, 2011 tentative support for the extension has been given by New York City Mayor Michael Bloomberg as well as New Jersey Governor Chris Christie in comments to the press.〔(【引用サイトリンク】title=Mayor Bloomberg wants to extend 7 line to New Jersey )〕〔(【引用サイトリンク】title=Bloomberg )〕 However, in April 2013, MTA former chairman Joseph Lhota announced that the 7 train would not be extended to New Jersey due to the high costs of the project, which included constructing a subway yard and a subway tunnel in New Jersey. Instead, Lhota put his support behind Amtrak’s Gateway Tunnel project which entails a new tunnel to Manhattan for Amtrak and NJ Transit trains. 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「7 (New York City Subway service)」の詳細全文を読む スポンサード リンク
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