Under what condition can a train with Acses failure be dispatched from a turnaround point?

A train with an ACSES (Advanced Civil Speed Enforcement System) failure can be dispatched from a turnaround point if it meets certain safety and operational criteria. In this case, the correct condition is if the equipment passed an ACSES test within the past 24 hours. This condition is crucial because it ensures that the train's safety systems have been verified as functional and that the train can operate safely according to regulatory standards.

When equipment successfully passes an ACSES test, it indicates that the system is capable of enforcing speed limits and providing the necessary protections against over-speeding or other safety hazards. This validation is especially important because an ACSES failure signifies that the enhanced control and monitoring systems that normally ensure operational safety are impaired.

While having repair personnel available, crew assessments of safety, and dispatcher permissions are all important aspects of train operations and safety protocols, they do not substitute for the necessary testing of the critical systems that ensure safe dispatch. Only verified functioning equipment guarantees that the train can be operationally reliable and safe for dispatch, making the condition of having passed a recent ACSES test the most definitive factor in this scenario.