MRT Reliability Stays Above 2 Million Train-km for Third Consecutive Month in June 2026

MKBF (mean kilometres between failure) is a widely used engineering measure of rail reliability that shows how far a train travels before it encounters a delay lasting more than five minutes. LTA’s figures are based on a 12-month moving average.

The North-East Line (NEL), operated by SBS Transit, remained the most reliable MRT line, averaging 4.46 million train-km between delays in June. The Downtown Line (DTL), also run by SBS Transit, and SMRT’s East-West Line (EWL) held steady in terms of reliability.

The two SMRT-operated lines that had the most room for improvement both showed gains. The North-South Line (NSL) showed the bigger improvement, averaging 1.98 million train-km between delays, up from 1.65 million train-km in May. Yet it remained the least reliable of the five MRT lines. The Circle Line (CCL) averaged 2.4 million train-km between delays, up from 2.37 million train-km the previous month.

Overall MRT train service delivery reached 99.82% in June, compared with 99.81% in May and 99.9% in April. The North-South Line scored 99.98%, the East-West Line 99.97%, the North-East Line 99.94%, the Circle Line 99.3% and the Downtown Line 99.92%.

Train punctuality across the five lines improved slightly from 99.1% to 99.32%. This is measured as the percentage of trips completed within two minutes of the scheduled time. Individually, only the DTL registered a dip from 99.92% to 99.83%, while the other lines improved on their punctuality scores. The North-South Line scored 99.75%, the East-West Line 99.84%, the North-East Line 98.99% and the Circle Line 98.21%.

The proportion of train services that operated on schedule also improved slightly, from 99.81% to 99.82%. Again, only the DTL experienced a dip, from 99.94% to 99.92%. The other lines either improved or held steady on this measure.

In June, there was no major delay exceeding 30 minutes across the five MRT lines and LRT network, according to LTA’s report. The authority said in a press statement that there has been no major delay exceeding 30 minutes on the MRT lines since November 2025, the longest period without such a delay since the figure was first tracked in 2011.

The reliability of the Thomson-East Coast Line (TEL), which is excluded from the overall reliability report, held steady in June, averaging 355,000 train-km between delays. The SMRT-run line is not included because MRT lines in their early stages tend to have significantly lower mileage, owing to relatively low ridership and trains not running at typical frequencies. The TEL also did not encounter a major delay exceeding 30 minutes in June. The fifth and final stage of the TEL, comprising Bedok South and Sungei Bedok stations, will open later in the year.

The LRT network’s overall reliability improved in June, with trains averaging 533,000 car-km between delays, up from 497,000 car-km in May. The SBS Transit-run Sengkang-Punggol LRT recorded 892,000 car-km between delays, improving from 886,000 car-km. The Bukit Panjang LRT operated by SMRT was also more reliable in June, clocking 293,000 car-km between delays, up from 263,000 car-km.