Use of the RAILI telephone

The error in location information, which was the main cause of this accident, might have been avoided if the traffic controller and the engine drivers had used group calls. The investigation showed that personnel do not yet know how to use group calls.

The use of group calls should be made into a standard procedure in exceptional situations.

In RAILI telephone user training, it should be ensured that all operators know how to use the system in the best possible way. It should also be ensured that the general railway network communication instructions are observed.

The error in location information, which was the main cause of this accident, might have been avoided if the traffic controller and the engine drivers had used group calls. The investigation showed that personnel do not yet know how to use group calls.