After receiving authority to pass the Conditional Stop Sign at 21G, what can the train do?

The correct answer indicates that once a train has received authority to pass the Conditional Stop Sign at 21G, it is permitted to proceed past the sign without stopping. This is based on the understanding that Conditional Stop Signs are used in specific situations where a train may need to halt to ensure the safety of operations. However, upon receiving the appropriate authority, the train can then continue on its route as instructed, signifying that the conditions allowing for safe passage have been met.

The choice of proceeding without stopping reflects standard operational procedures, where a train can move forward based on explicit communication from dispatch or control. This ensures efficiency in rail traffic and minimizes unnecessary delays, provided that all safety checks and conditions are satisfied prior to passing the sign.