Which statement describes the effect when only one signal indication is possible?

Which statement describes the effect when only one signal indication is possible?

• A. It governs
• B. It is ignored
• C. It triggers a stop
• D. It requires dispatcher approval

Answer: (A)

In NORAC, signals are the controlling authority for movement. When only one signal indication is possible, that single indication still governs how you proceed on that section of track. It sets the authority you must follow until a different signal or instruction changes it. You don’t ignore it, and you don’t need dispatcher approval just because there’s only one possible indication. The indication only dictates stop or go based on what that particular aspect shows, not a separate rule requiring intervention.

In NORAC, signals are the controlling authority for movement. When only one signal indication is possible, that single indication still governs how you proceed on that section of track. It sets the authority you must follow until a different signal or instruction changes it. You don’t ignore it, and you don’t need dispatcher approval just because there’s only one possible indication. The indication only dictates stop or go based on what that particular aspect shows, not a separate rule requiring intervention.