Singapore's MRT network maintained high reliability levels by recording over 2 million train-km mean kilometres between failures (MKBF) in June 2026, marking the third month in a row above this threshold [1, 2, 3, 4]. The average MKBF for the entire MRT network from July 2025 to June 2026 stood at 2.5 million train-km, surpassing the target of 1 million train-km between delays exceeding five minutes [1, 2, 3, 4].
Among the MRT lines, the North East Line (NEL) showed the highest reliability at 4.46 million train-km between delays [1, 2, 3, 4]. The Circle Line (CCL) improved slightly to 2.4 million train-km from 2.37 million the previous month [1, 2, 3, 4]. The North-South Line (NSL) increased from 1.65 to 1.98 million train-km but remained the least reliable among the mature lines [1, 2, 3, 4].
Train punctuality improved overall to 99.32% in June 2026 from 99.1%, with only the Downtown Line (DTL) recording a slight dip in punctuality despite a strong MKBF of 4.2 million train-km [1, 2, 3, 4]. The Thomson-East Coast Line (TEL) maintained steady reliability at about 355,000 train-km but remains excluded from the overall MRT reliability statistics [1, 2].
Officials reported no major delays longer than 30 minutes across the five MRT lines and the LRT network for June 2026. The current streak of no major delays exceeding 30 minutes has continued since November 2025, the longest period since the Land Transport Authority (LTA) began tracking in 2011 [3, 4].
The LTA revised May 2026 reliability figures after including a Circle Line delay exceeding five minutes on May 16, highlighting rigorous data updates [4]. A Land Transport Authority spokesperson said, "Our high MKBF levels over the last three months are a reflection of the sustained effort and dedication from our transport workers and rail operators to uplift reliability and improve their response to faults and incidents" [4].
The Rail Reliability Taskforce, which issued recommendations in February 2026, contributed to the ongoing improvements in MRT performance [3, 4]. The LTA published the June 2026 MRT reliability report on July 17, confirming sustained high MKBF figures [1, 2, 3, 4].
