Federal investigators found “black boxes” from the Hoboken train crash
Federal investigators say they have from Thursday in Hoboken, New Jersey dock (Hoboken Terminal) of commuter train back to a “black box”, because they are trying to find why high-speed trains crashed to the dock.
NPR’s Hansi Lo Wang reports that the PATH train and some New Jersey Transit trains have resumed service, but some train services are still suspended.
NPR’s David Schaper says the data recorders found by investigators will help determine key information, such as the speed of the train. He said that close to the speed limit is about 10 miles an hour, experts told him that the train had to 20 MPH or faster speed, in this way the impact at the end of the track obstacles.
Former chairman of the national transportation safety board Debbie Hersman (Debbie Hersman) told David, train data recorder can also display information such as throttle position, can display the operating personnel in what to do.
The ATA association’s chief executive, Bob Swint, is a forensic engineering company responsible for the reconstruction of an accident like the Hoboken crash. He told David that, so far, he suspected – based on what other evidence could prove that the train operator was powerless.
“Whether it’s attention deficit, fatigue, or illness, it’s something that the operator has to do,” Swint said. Getting into the train station is one of the most sensitive things you can do – you come in slowly.
David said the train had survived and was released from the hospital and was cooperating with authorities.
Federal investigators will now look for a second data recorder at the crash site and examine the tracks and other physical evidence and stabilize the wreckage.
One question investigators will explore is whether active train control (PTC) can prevent accidents. David said the technology would allow the train to slow down or stop automatically when an error or other problem occurred, but not on the Hoboken dock.
“By 2018, all railways must have this technology,” he explained in the morning edition. “but many commuter railways are behind. “It’s just very complicated, very expensive, commuter rail, only a few people have them so far.”
The Associated Press noted that even without PTC, the Hoboken dock installed other security measures:
“The new MRT trains have a taxi system to alert engineers and stop locomotives when they travel more than 20 miles,” according to a New Jersey transportation engineer who declined to be named.
“The train that crashed on Thursday was also equipped with a system that issued a loud alarm and eventually stopped the train, if the engineer was 15 to 20 seconds, without hitting the controls.
“But it is not clear whether these mechanisms have been activated or if they have been made.”