Editorial - The Dangerous Railway-Road Intersection Problem

A catastrophic train-bus collision in Bangkok that ignited a massive fire has claimed 8 lives and injured 32 people—a tragedy that should never have occurred. This type of accident happens repeatedly, causing loss of life, devastating families, and resulting in substantial property damage. Investigations will determine which parties were negligent and how traffic laws were violated, though existing traffic signals and barriers failed to prevent the accident. Preliminary findings suggest shared responsibility among the train operator, the bus driver who parked on the tracks, and barrier control personnel. However, the intersection regularly sees traffic violations with inadequate enforcement by authorities. Amorn Pimmanmas, chairman of Thailand's Structural Engineers Association, has called for urgent surveys of other high-risk intersections, citing research showing 2,300 rail-road level crossings nationwide. He identified 10 categories of risk factors, noting many intersections have only warning signs without barriers, and Bangkok alone has dozens of dangerous crossings. High-risk intersections are identified using the Traffic Moment formula—the product of vehicle volume and daily train frequency. Risk characteristics include locations on curves, steep grades, oblique angles, construction zones within 1,000 meters, proximity to bridges or tunnels, obscured signage, inadequate nighttime lighting, broken barriers, missing signals or alarms, and absence of stop lines 5 meters before the tracks. Users must exercise caution while relevant agencies including the State Railway of Thailand and the Department of Land Transport must urgently conduct risk assessments and strengthen safety standards to prevent future tragedies.