What speed will a train operate after entering an automatic block at a hand operated switch?

When a train enters an automatic block at a hand-operated switch, it must operate at restricted speed until it can be assured of the conditions ahead. Restricted speed is a precautionary measure that requires the train to proceed at a speed that allows it to stop within half the range of visibility and gives the crew time to react to any unexpected obstacles. This is particularly important when approaching a switch that may not be guaranteed to be in the correct position for the train's route, thus ensuring the safety of both the train and the railroad infrastructure.

Operating at maximum speed, as suggested in one of the choices, would not consider the variability and potential risk that hand-operated switches introduce, which could lead to unsafe situations. Similarly, a speed determined by the dispatcher could vary too much and might not specifically address the unique risks associated with hand-operated switches. Finally, safety speed until the next station is not a defined term within operating regulations and does not account for the immediate hazards present at a switch.