From track geometry cars to signals to punches to snowblowers, these vital cars and pieces of macheniery keep the system running.
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 Part of a worktrain passing through Broadway Junction Station, December 28, 2001 |  Snowblower JB5 @ Rockaway Park, June 17, 2001. | |
 Vaccum train (R137) VT201 at Hewes Street, June 28, 2010 |  Vaccum train (R137) VT201 at Hewes Street, June 28, 2010 | |
 To make sure the tower operator gives the correct lineup to each train, the operator uses a punch box to alert the tower. On this box at Columbus Circle's downtown express platform, an A train operator would hit the button marked "A." Then, the tower would set the switch so that the train would keep going down the 8th Avenue Express Line. Other routes available on this box are B, C/K, and D. In addition, there is a cancel button. |  Some redbirds are being converted into work units. Here is one of them at 207th Street Yard. May 26, 2002. |  A wheel detector is very much like a signal timer, except it can trip a train without the train passing over the trip arm. If the light above the WD sign is lit, the train is limited to the speed indicated on the sign in the vicinity. "WD 20" means the train must go less than 20 MPH in order not to be tripped. Wheel detectors are used on switching tracks. |
 Track Geometry Car #2 (TGC2) @ Coney Island, 1998. The track geometry car goes throughout the system to make sure the tracks are the correct distance apart from each other. There are two TGCs. | ||
 Pump car R65 PC03 in 38th Street Yard, November 7, 2004 |
This line has been in operation since