Archive for August 2nd, 2013

Pocket Tracks

August 2nd, 2013 No comments

Adding special types of tracks at key locations in the system will provide more flexibility to the overall system.

  • Pocket tracks: allow trains to turn back in the direction from which they came (short-lining), gap trains to be stored until placed in revenue service, and the staging of track equipment until nighttime trackwork
  • Crossovers: allow trains to single track during incidents or nighttime trackwork

Pocket-Tracks---Schematic-MapPurpose and Need

The Metrorail system includes various single- and double-crossovers and additional ones will shorten the distance of single tracking. The system also has seven mid-route turnbacks, each of which is configured to operate as a third or “pocket” track capable of storing an eight-car train. To improve efficiency and reduce operating costs, certain lines could utilize a pocket track for a “short-lining” turnback to provide improved service to the highest-demand segments of the line. Other new pocket tracks would allow for storage of gap trains, disabled trains and track equipment. Read more…