Faults on 4LM signalling system
Submitted by Admin on 22 June, 2023 - 13:45Dear Colleague,
LUL – FAULTS IN 4LM SIGNALLING SYSTEM
I have received alarming reports from my Tier 2 safety reps in the Trains and Service Control functions of LUL; a number of software issues have come to light as the Thales 4LM automatic train system is rolled out. LUL was unable to contradict my representatives’ assertion that the railway no longer fails safe. The company accepts that a risk of derailment and/or collision has been imported with the roll out of the 4LM project.






