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NSG 600 Running signals

Co‑acting signals

24 July 2024

Description

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Co‑acting signals

If it is possible for a running signal to be obscured from a Driver’s or Track Vehicle Operator’s view, a co-acting signal may be used to provide information about the running signal indication.

Co-acting signals may have:

  • a sign showing CO‑ACTINGINDICATOR, or an abbreviation
  • a signal identification sign with the same details as those on the primary signal.

FIGURE 11: Typical co‑acting signals.

FIGURE 12: Example of co‑acting signal placement where the Driver’s view of Signal 2 is obstructed by the station building and the track curvature. The Driver will see the co‑acting signal for Signal 2.