SINGAPORE – The Republic’s MRT network is the most reliable it has ever been, with four of five mature lines recording improvements in August.

On average, MRT trains clocked 2.88 million train-km between delays lasting more than five minutes between September 2025 and August 2026, said the Land Transport Authority (LTA) in its latest rail reliability report on Sept 11.

This is almost triple Singapore’s rail reliability target for the entire MRT network of one million train-km between delays, or one million mean kilometres between failure (MKBF).

MKBF is a widely used engineering measure of rail reliability and 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.

In August, there were also no major delays exceeding 30 minutes across the five mature MRT lines and LRT network, according to the rail reliability report.

This marks the longest period without such a delay on these lines, since the last one in November 2025 on the East-West Line (EWL).

The Downtown Line (DTL), operated by SBS Transit (SBST) rose the ranks to become the most reliable MRT line, averaging 8.37 million train-km between delays in August, almost twice the distance of 4.2 million train-km in July.

Coming in second place is the North East Line (NEL), also run by SBST, which clocked 4.48 million train-km between delays in August, up from 4.47 million train-km the previous month. It had been the most reliable line previously.

LTA said both DTL and NEL recorded their highest theoretically possible MKBF in the past year.

After these two lines, the next most reliable was the EWL, which recorded 2.52 million train-km between delays, an improvement from 2.02 million train-km in July.

The reliability of the Circle Line (CCL) also went up, clocking 2.51 million train-km between delays in August, up from 2.45 million train-km the previous month.