Which fixed signal that displays Stop signal as its most restrictive aspect and governs the entrance to a route or block?

• A. Home Signal
• B. Indication
• C. Distant Signal
• D. Block Signal

Answer: (A)

The main idea here is understanding which fixed signal actually gates entry into a route or block. The home signal sits at the boundary and is the signal that governs whether a train may enter the next section. Its most restrictive aspect is Stop, so when it shows Stop, entry is prohibited until it changes to a permissive aspect. Distant signals don’t authorize entry—they simply warn what the next signal will show, helping the driver prepare. Block signals do control entry into the next block, but the question points to the signal that directly governs entering a route or block at the boundary, which is the home signal.