Weekend Work March 22 - 25, 2013
During the weekend of March 22-25, critical maintenance and construction work continued on the line. Service was suspended between Queensboro Plaza and Times Sq-42 St. When work is completed, Flushing Line customers will benefit from improved service reliability, increased customer comfort and enhanced customer communications. The line is 9.4-miles long, has 21 stations and connects Downtown Flushing, Queens and Midtown Manhattan.
The weekend work included the continuing installation of a modern signal system, infrastructure and electrical improvement work in the under river tunnel between Queens and Manhattan, and replacing track on the elevated structure in Long Island City.
Signal System Modernization CBTC, Flushing Line
The contractor installed wayside equipment (one stop, two maintainer horns, two stop push buttons, one train operator push button and four junction boxes) at the 5 Av station. Signal equipment was terminated from Times Square to First Avenue. In addition, 40 feet of messenger cable and seven messenger brackets was installed and train holding lights were installed at the 5 Av and the Grand Central-42 St stations. Uninterrupted Power Supply (UPS) batteries were delivered to the Times Square UPS room, and 800 electrical relays were delivered to the Times Square Relay Room. Also, two new frogs (a part of a switch that permits the wheels on one rail of a track to cross an intersecting rail) and four rails were installed at Times Sq-42 St.
This work includes demolishing ducts on both outer walls of the Steinway Tunnel and constructing a new duct bank that will house cables that supply power to the third rail. During the weekend, on the Manhattan-bound track, the contractor installed 17 pads for Communications Based Train Control (CBTC) equipment and poured concrete for 1,570 feet of duct bank. On the Queens-bound track, steel rebar and fiberglass duct work was installed.
Capital Track Program
On the Manhattan-bound track, track maintenance forces continued replacing track panels outside of the Queensboro Plaza station in the direction of Court Sq station.
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