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Re: Federal (Union shielding!) investigators point to design flaw as possible cause for CTA Yellow Line train crash
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tinsdale
Nov 19, 2023, 6:05:03 PM11/19/23
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On 19 Nov 2023, tRUMP VERMIN Inmate P01135809 <el...@protonmail.com>
posted some news:ujdf1a$3snkp$2...@dont-email.me:
> "She"? What the fuck does this cunt know about physics and railroad
> engineering?
CHICAGO (CBS) – Federal investigators said the CTA Yellow Line crash
that resulted in dozens of injuries might have happened because of a
design problem that prevented the train from stopping before striking
snow equipment on the tracks.
During a press conference on Saturday afternoon, Jennifer Homendy, the
chair of the National Transportation Safety Board, said the
investigation team determined the design problem made it so the breaking
distance the train had was 1,780 feet, about 1,000 feet shorter than
newer systems.
Investigators did not detect any obvious errors on the part of the
driver, who was slowing the car at the time of the crash. The CTA knew
the equipment was on the track ahead of the train and they were trying
to stop.
Homendy stressed the findings she shared on Saturday were preliminary
and that more investigation needs to take place. A final analysis will
take months to complete.
"The breaking distance should have been longer," Homendy said, referring
to the CTA's system. "A brand new system today, with the same track,
they should have had 2,745 feet to stop that train ... not 1,780 feet.
That is a design problem."
She said more modern design systems allow for longer stopping distances,
especially as trains have gotten heavier with more passengers.
"Really surprising that these tried and true older cars have a design
specification flow that for years we've been operating with perhaps,
unsafe stopping distances," said Joe Schwieterman, a professor at DePaul
University and an expert in the field of transportation. "This, you
know, just shows how we constantly need to be vigilant about these new
risks, because this was a lot of injury here."
Homendy said the Yellow Line train was traveling at 26.9 miles per hour
at the time of the collision with the snow fighter locomotive.
Investigators looked at video footage from multiple cameras.
She also said there were six employees on the snow fighter locomotive at
the time of the crash and that the equipment was on the tracks for
planned training.
Homendy also mentioned an issue with residue on the track as the train
tried to stop, which caused the wheels to skip.
She added that the audio that appeared to show some were aware of the
snow equipment on the tracks was a warning not for the train that
ultimately crashed but for the one trailing it.
Riders told CBS 2 they didn't recall any squeeling brakes, whistles, or
sirens.
NTSB officials said it's unclear how much of the CTA system might be
operating under the old design, but they stressed they believe the CTA
is still as a whole, a safer option than driving.
In all, 38 people on the CTA train were hurt. There were 31 passengers
and seven CTA employees on the train. A total of 23 were sent to area
hospitals, some with serious injuries.
Investigators said it was still unclear when the Yellow Line would
resume operations in that section of the system.
CBS 2 has reached out to the CTA for comment but has not heard back.
https://www.cbsnews.com/chicago/news/cta-yellow-line-crash-flaw/?intcid=C
NR-02-0623
posted some news:ujdf1a$3snkp$2...@dont-email.me:
> "She"? What the fuck does this cunt know about physics and railroad
> engineering?
CHICAGO (CBS) – Federal investigators said the CTA Yellow Line crash
that resulted in dozens of injuries might have happened because of a
design problem that prevented the train from stopping before striking
snow equipment on the tracks.
During a press conference on Saturday afternoon, Jennifer Homendy, the
chair of the National Transportation Safety Board, said the
investigation team determined the design problem made it so the breaking
distance the train had was 1,780 feet, about 1,000 feet shorter than
newer systems.
Investigators did not detect any obvious errors on the part of the
driver, who was slowing the car at the time of the crash. The CTA knew
the equipment was on the track ahead of the train and they were trying
to stop.
Homendy stressed the findings she shared on Saturday were preliminary
and that more investigation needs to take place. A final analysis will
take months to complete.
"The breaking distance should have been longer," Homendy said, referring
to the CTA's system. "A brand new system today, with the same track,
they should have had 2,745 feet to stop that train ... not 1,780 feet.
That is a design problem."
She said more modern design systems allow for longer stopping distances,
especially as trains have gotten heavier with more passengers.
"Really surprising that these tried and true older cars have a design
specification flow that for years we've been operating with perhaps,
unsafe stopping distances," said Joe Schwieterman, a professor at DePaul
University and an expert in the field of transportation. "This, you
know, just shows how we constantly need to be vigilant about these new
risks, because this was a lot of injury here."
Homendy said the Yellow Line train was traveling at 26.9 miles per hour
at the time of the collision with the snow fighter locomotive.
Investigators looked at video footage from multiple cameras.
She also said there were six employees on the snow fighter locomotive at
the time of the crash and that the equipment was on the tracks for
planned training.
Homendy also mentioned an issue with residue on the track as the train
tried to stop, which caused the wheels to skip.
She added that the audio that appeared to show some were aware of the
snow equipment on the tracks was a warning not for the train that
ultimately crashed but for the one trailing it.
Riders told CBS 2 they didn't recall any squeeling brakes, whistles, or
sirens.
NTSB officials said it's unclear how much of the CTA system might be
operating under the old design, but they stressed they believe the CTA
is still as a whole, a safer option than driving.
In all, 38 people on the CTA train were hurt. There were 31 passengers
and seven CTA employees on the train. A total of 23 were sent to area
hospitals, some with serious injuries.
Investigators said it was still unclear when the Yellow Line would
resume operations in that section of the system.
CBS 2 has reached out to the CTA for comment but has not heard back.
https://www.cbsnews.com/chicago/news/cta-yellow-line-crash-flaw/?intcid=C
NR-02-0623
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