Singapore's MRT network recorded an average of 2.22 million train-kilometers between delays of over five minutes in April 2026, marking the highest performance since November 2024 [1, 2, 3]. The Land Transport Authority (LTA) said, "This was the first time the figure had exceeded 2 million train-km since November 2024." Reliability is measured by mean kilometres between failure (MKBF), which tracks how far trains travel before experiencing delays longer than five minutes [1, 2, 3].

Punctuality across the MRT system reached 99.48% of trips arriving on time in April 2026, with the Downtown Line (DTL) emerging as the most punctual line [1, 2, 3]. The DTL, operated by SBS Transit, saw a significant boost in reliability to 4.2 million train-km between delays in April, doubling from 2.1 million in March 2026 [1, 2, 3].

The North East Line (NEL), also run by SBS Transit, remained the most reliable line, maintaining 4.45 million train-km between delays in April, consistent with March data [1, 2, 3]. Other lines operated by SMRT mostly showed improvements. The East-West Line (EWL) improved to 2.02 million train-km from 1.45 million in March, and the North-South Line (NSL), Singapore's oldest MRT line, rose to 1.42 million train-km from 1.24 million [1, 2, 3].

The Circle Line (CCL), also operated by SMRT, was the only line to record a slight dip in reliability, falling to 2.36 million train-km in April from 2.37 million in March 2026 [1, 2, 3]. The Thomson-East Coast Line (TEL), operated by SMRT, was excluded from the overall network reliability data due to lower ridership and atypical train frequencies during its early stages [1, 2, 3].

Singapore’s benchmark for MRT reliability is a mean of one million train-km between failures, a target that all lines surpassed comfortably in April 2026 [1, 2, 3]. The LTA released the April reliability figures on May 15, confirming the network's steady progress [1, 2, 3].

The fifth and final stage of the Thomson-East Coast Line, which includes Bedok South and Sungei Bedok stations, is scheduled to open in the second half of 2026, adding new connections to the MRT network [1, 2, 3].