The trial run and commercial launch of the Yellow monorail system are not yet finalised because system testing is not complete, according to the Mass Rapid Transit Authority of Thailand (MRTA).

In a statement, the MRTA said the trial run of the Yellow monorail line, which is tentatively scheduled for later this month, is not confirmed. Several of the line's systems are being tested and fine-tuned to meet international safety standards before the trial run can commence, according to the MRTA.