Speed during assistance
Implemented
Rail R
Accident
20.2.2012
B1/2011R/S324
Suosituksen perustelu
The calculations show that a distance of 130 metres would have been sufficient to stop the train from a speed of 23 km/h, with normal braking and 32 km/h with emergency braking, when both the reaction time and brake delay are taken into account.
Recommendation
The speed of the assisting unit should be limited to 35 km/h, when it is driving to assist a train on the line.
Suosituksen tarkennus
Traffic control should order shunting work to begin from the main signal displaying the stop signal before the assistance site, or from the station before the assistance site, if there is no main signal to protect the assistance site. Shunting work regulations should be followed when assistance is being provided. Train assisting should primarily be done with locomotives only. Assisting with a train should be avoided.
Toimenpide-ehdotukset
The calculations show that a distance of 130 metres would have been sufficient to stop the train from a speed of 23 km/h, with normal braking and 32 km/h with emergency braking, when both the reaction time and brake delay are taken into account.