Mechanical failure blamed for Seoul train collision

2014-05-03 11:38
A damaged train lying on the ground after it derailed in Hailun, northeast China's Heilongjiang province. (AFP, file)

A damaged train lying on the ground after it derailed in Hailun, northeast China's Heilongjiang province. (AFP, file)

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Seoul - A malfunctioning automatic stopping system caused the recent collision of two subway trains in Seoul, officials said on Saturday.

A moving train slammed into the rear of another, which had stopped at Sangwangsimni station in eastern Seoul on mid-afternoon Friday, leaving more than 200 people injured. One elderly woman was seriously hurt, while more than 150 required some sort of treatment - mainly for cuts and sprains.

The accident was a fresh blow to a country still reeling from the 16 April Sewol ferry tragedy that left 300 dead or missing - most of them high school students - after the ship capsized and sank.

"The Automatic Train Stop system (ATS) installed at Sangwangsimni station failed to function properly", Seoul Metro President Chang Jung-Woo told journalists.

ATS is designed to control the distance between trains, and should activate when the two trains were within 200m of each other.

The system malfunctioned, consequently, the following train came too close to the stationary train, leaving little time for the driver to brake.

Public anger

The tunnel curves before entering Sangwangsimni station and the driver did not see the platform was occupied until quite late, Chang added.

The last two carriages of the stationary train appeared to have been thrown off the rails by the force of the impact, and TV footage showed cracked windows on the two trains and one door connecting two carriages that had been completely knocked off its hinges.

Train service on the subway line No 2 returned to normal early on Saturday.

Seoul's subway network is one of the busiest in the world, carrying around 5.25 million passengers a day, according to official data from City Hall.

The collision added to public anger and frustration with the country's lax safety standards exposed by the ferry disaster.

The Chosun Ilbo daily with the country's largest circulation said on Saturday that Seoul subway line No 2 was built 34 years ago and was run-down, and warned South Korea was not investing enough in maintaining its infrastructure.

"This country, however, has been parsimonious in investing in safety measures while rushing for ostensible economic achievement", it said in an editorial.

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