Grade Crossing Accidents
Employers Liability Act (FELA) Cases
Skillset - Robert W.
Video and Computer-Generated
IWT obtains broadcast-quality,
vibration-free, gyrostabilized video footage from hyrail vehicles, trains,
helicopters or fixed wing aircraft in all weather and lighting conditions.
Video footage is taken with a special lens arrangement to closely
approximate the range of vision experienced by a motorist, locomotive
engineer, or eyewitness.
IWT can direct reenactments of the
events leading up to the accident, coordinating with railroad operations
management to schedule crews, equipment and track necessary for the
reenactment. Video or film footage of the reenactment can then be
closely matched to actual event recorder data from the incident to recreate
as closely as possible what participants saw in the final moments leading up
to the accident. Sight distances can be measured and compared for both
on-board personnel, bystanders, and victims.
A train headed by two
General Electric 8-B40 locomotives approaches a grade crossing.
Overlaid on the animation is a computer-generated "dashboard" showing
up-to-the-second data from the locomotive's event recorder.
A General Motors
Electro-Motive Division (EMD) SW-1500 locomotive, computer-modeled in 3-D
for use in an animated reenactment of a yard derailment.
- Computer-generated visual special effects
can be used to recreate visibility impairments, including clouds, mist,
fog, rain, snow and vegetation.
Entire segments from
the event recorder data can be reconstructed using advanced computer
animation techniques, allowing complex sequences of events to be easily
viewed and understood.
Physical terrain can be
scanned with a digital scanner or PhotoModeler, and the resulting
point-clouds can be imported for analysis into a wide variety of computer
animation software, producing an extremely accurate portrayal of the
terrain at an accident location. This gives us the capability to evaluate
sight distances up to and around fixed terrain, and precisely replicate
crossing gradient and surface conditions.
aerial and ground video, and computer animations can be combined to show
the circumstances behind the accident from any conceivable angle.
Still photographs can
be subjected to computerized photogrammetric analysis, enabling distances
to be measured directly from the photograph.
Video footage can be
pulled into a computer, compressed, and written to DVDs
for use in locomotive engineer training simulators.
Event recorder data
from multiple sources can be correlated and used to reconstruct the
incident. Examples on the railroad might be data from locomotives, field
code units at interlockings, motion sensors and predictors at highway
grade crossings, and data dumps from computer-aided dispatching
IronWood Technologies, Inc.
Syracuse, NY USA 13203-1315
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