The public has heard too often that the frequent train breakdowns were due to unforeseen and unpredictable circumstances ("2 major MRT lines down for over 2 hours"; Wednesday).
I suggest that the current maintenance programme be overhauled. Do not continue to implement breakdown maintenance or rely on old predictive models to initiate replacement.
There are many more trains and heavier usage of the lines today. So, any predictive model based on past performance will definitely not be reliable.
New models have to be developed, and a proactive programme to replace hardware that was installed decades ago needs to be executed.
Of course, there is a price to pay but the public would be more appreciative of a reliable system than a cheap, unreliable one.
Christopher Tang Wei Ling