Bangkok: The State Railway of Thailand (SRT) has initiated a thorough investigation following a train driver's positive test for methamphetamine. The investigation comes after an incident where the driver applied the emergency brake only 100 meters before a collision, despite the recommended braking distance being 500-600 meters.
According to Thai News Agency, Mr. Anan Pothinimdaeng, Acting Governor of SRT, revealed that the train driver's drug test results were reported last night. While the SRT routinely conducts alcohol and health checks before shifts, drug tests are not performed as frequently. In light of the incident, the Department of Rail Transport has directed SRT to expedite drug testing for all train drivers.
Historically, SRT conducted random drug tests only during annual health checkups and for new hires. The driver, who began working in 2023, had passed an alcohol test before the incident on May 15th, showing no alcohol in his system.
Mr. Anan explained changes in the licensing process following the Rail Transport Act's enactment in March 2026, which requires drivers to obtain licenses from the Department of Rail Transport. The SRT is in the process of issuing digital licenses.
Data from the train's black box showed the train had traveled approximately 2,800 meters from Khlong Tan station to the accident site, moving at an average speed of 34 kilometers per hour before the emergency brake was applied. The normal braking distance for a train at maximum speed is about 1,000 meters.
Questions arose regarding whether the driver could have stopped in time if he had seen the crossing attendant's hand signal. Mr. Anan clarified that drivers typically see signals from 300-500 meters away, and standard protocol requires slowing down and obeying hand signals if crossing barriers are not fully closed.
The incident occurred because the road barrier was not lowered due to traffic congestion, causing the driver to rely on hand signals. CCTV footage showed officers using red flags to signal "no" or "not permitted." The driver's lack of uniform during duty is also under investigation.
The train's operational team included a driver and a mechanic, who was injured but has been discharged from the hospital. The mechanic could face investigation pending results from the SRT board and police.
Initially, SRT is considering disciplinary action against the driver after preliminary tests indicated methamphetamine and marijuana use. Official confirmation from the hospital is awaited, and investigations into other staff members continue.