derail

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derail

Chiefly US a device designed to make rolling stock or locomotives leave the rails to avoid a collision or accident

derail

[dē′rāl]
(engineering)
To cause a railroad car or engine to run off the rails.
A device to guide railway cars or engines off the tracks to avoid collision or other accident.
References in periodicals archive ?
'The minister is really upset these days due to slow procedural work on ML-1 and the increasing derailments. That is why he expressed his displeasure in the meeting held on Monday with the planning commission,' said a railway source.
"Whereas injury figures in collision and derailment came down from 272 to 12 (95.6 per cent reduction).
In the previous research [2], we developed the 3D collision simulation model after train derailment. In this paper, using this collision simulation model, various installation situations of the containment wall were considered by the parameters (location and height of the wall) that affect the impact force and containment effects of the containment walls.
New Delhi [India], Dec 19 ( ANI ): The Amtrak train derailment in the United States has highlighted the fact that train derailment is not an India-specific problem and that all over the world, railway systems suffer accidents, according to safety experts who have commented on the train disaster.
There have been cases where derailments were due to human error.
"We are also calling for Transport Canada to look at all of the factors, including speed, which contribute to the severity of derailments, to develop mitigating strategies and to amend the rules accordingly."
Regulators have acknowledged that oil train derailments could cause billions of dollars in damage, and result in the loss of hundreds of lives.
"I looked outside and there was black and white smoke blowing across the sky, and I could hear the flames," said Mosier resident Dan Hoffman, 32, whose house is about 328 ft from the derailment. "A sheriff's official in an SUV told me to get the hell out."
The latest Canadian derailment, involving a Canadian National Railway Co.
and Greenbrier Cos., over what Union Pacific says was inadequate repairs that caused several derailments. Both Progress Rail and Greenbrier are contesting the suit in court.
The derailment on December 30 highlighted concerns about shipping crude by rail.
Whether it was intended as a diversion or not, BNSF proceeded in a way that forced STB to focus on BNSF's basic right to amend its own tariff, and not at the actual cause of the derailments. Even if the STB could see through the possible tactic of diversion, the case before them was a railroad tariff amendment.