Back #241
ABTH 10.1
Answer: - Proceed indication from a controlled signal - Authority to pass a Stop indication - Authority to enter between block signals - Track and Time
Feedback:A train must not enter or occupy any track where CTC is in effect unless a controlled signal displays a Proceed indication, the control operator authorizes movement past a Stop indication, the control operator authorizes the train to enter track between block signals, or Track and Time.