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Ministry of Transport
In Parliament

Data Validation of Mean Kilometres Between Failure Reports and Verification Processes to Address Potential Reporting Oversight

Sectors

Trains

14 January 2026

Written Reply to Parliamentary Question

Ms He Ting Ru asked the Acting Minister for Transport given that Mean Kilometres Between Failure (MKBF) tracks only rail service delays exceeding five minutes

a.          who determines whether each incident meets this threshold for inclusion;

b.          what audit and verification processes apply to these determinations; and

c.           whether LTA independently tracks delay durations or it relies on data reported by rail operators.

Reply by Acting Minister for Transport Jeffrey Siow:

1.          The Land Transport Authority (LTA) determines whether an incident meets the threshold for being included in the calculation of Mean Kilometres Between Failure (MKBF). LTA identifies delays exceeding five minutes by independently reviewing data on all train movement, which is automatically logged by the train control system of each line and provided in full to LTA.

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