What does a green signal or proceed aspect indicate?

• A. Stop immediately.
• B. Proceed at normal speed without regard to track ahead.
• C. You may proceed at normal speed but must continue to observe track conditions and signals ahead.
• D. You should slow down and prepare to stop.

Answer: (C)

When you see a green signal, you are allowed to move forward, but you’re not free to ignore what’s ahead. The green proceed aspect means you may go, but you should do so at normal speed only if the track conditions and signals ahead permit it. Stay attentive to upcoming signals, switches, crossings, and any changes in track conditions, and be ready to slow down or stop if a signal changes or an obstacle appears. This is why the correct understanding is that you may proceed at normal speed but must continue to observe track conditions and signals ahead.