Which scenario does NOT require passing a block limit?

The scenario described as "In regular scheduled train stops" does not require passing a block limit because during these stops, trains are expected to adhere strictly to their designated stopping points. Scheduled stops are part of the normal operating procedure where the train operates within the prescribed limits, allowing for safe and orderly boarding and alighting of passengers.

In contrast, situations such as emergency services, or being instructed by a supervisor may necessitate passing block limits due to unforeseen circumstances, requiring quick actions outside regular protocols. Regular operations might also involve passing block limits under certain conditions, such as when signals indicate it is safe to do so. Thus, the regular scheduled stops clearly align with the proper adherence to operational protocols, emphasizing safety and caution within defined limits.