What is the maximum speed for trains notified of a bridge strike to go over the bridge?

When trains are notified of a bridge strike, the maximum speed at which they are allowed to approach the bridge is designated as restricted speed. This is a safety measure to ensure that trains can stop short of a potential hazard or, in this case, to safely navigate over a bridge that may have sustained damage due to a strike. Restricted speed is typically defined as the speed at which trains can safely respond to any signals or situations that arise, ensuring that they can come to a stop if necessary and preventing further incidents.

Normal speed would not be appropriate in this situation, as it does not account for the unknown condition of the bridge, which could pose a risk to the train and its occupants. Half speed does not adequately follow the protocol for safety in such conditions. Variable speed based on conditions could imply a more flexible approach, but the standardized practice in response to bridge strikes is to enforce a maximum of restricted speed for all trains affected by the notification. This standardization is crucial for maintaining safety and protocol across rail operations.