What two elements are used to read control signals?

What two elements are used to read control signals?

• A. Speed and Direction
• B. Track and Direction
• C. Track and Speed
• D. Signal and Track

Answer: (B)

Two things help you read control signals: the track you’re on and the direction you’re traveling. The track identifies the specific signal and block you’re approaching, since signals are tied to particular track segments and interlockings. The direction tells you how to interpret that signal for your movement, because the same signal can convey different instructions depending on which way you’re going. Together, knowing the track and direction lets you correctly read what the signal is telling you to do and respond safely. Speed and other factors influence how you execute the instruction, but the fundamental reading of the signal comes from knowing your current track location and travel direction.

Two things help you read control signals: the track you’re on and the direction you’re traveling. The track identifies the specific signal and block you’re approaching, since signals are tied to particular track segments and interlockings. The direction tells you how to interpret that signal for your movement, because the same signal can convey different instructions depending on which way you’re going. Together, knowing the track and direction lets you correctly read what the signal is telling you to do and respond safely. Speed and other factors influence how you execute the instruction, but the fundamental reading of the signal comes from knowing your current track location and travel direction.