According to the "Beijing Transportation Subscription Account", at 18:57 on December 14,Two trains rear-ended each other on the subway Changping Line from Xierqi to Life Science Park, causing some passengers to be injured.Subsequently, a total of 515 people were sent to the hospital for examination, including 102 fractures and no deaths. According to preliminary investigation, the cause of the accident was that the signal of the vehicle in front was degraded due to track slippage in the snow, and the vehicle in front was stopped by emergency braking. The vehicle behind was unable to brake effectively due to track slippage, and rear-ended the vehicle in front of it.
It should be noted that after the train rear-ended,The carriages were separated, and the separation point was at the junction of the subway carriages. The professional name of this place is the "through passage."
According to the encyclopedia information, the through passage is an important part connecting two carriages. It can play a safety protection role, provide a safe and reliable passage for passengers, and at the same time play the role of sound insulation, dustproof, and rainproof.
The tunnel is composed of a metal frame, folding canopy, side guards, roof, foot pedals, lower tunnel equipment, metal frame support and other components.
"China Emergency Management" officially issued a document stating that when taking the subway, do not stand in the cross passage.
Because when the subway is running at high speed, especially when turning, the carriages will move relative to each other, and the joints will shake a lot. In addition, there are no handrails, so passengers can easily lose their footing or fall.
In addition, the baffle will also be extruded and deformed, resulting in gaps, which may lead to pinching.
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