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Re: New Cars for Amtrak California? Division of Fail?
Author: Dr Zarkoff
Date: 09-04-2017 - 10:02
A few comments:
> because, it was a loaded trailer, like hitting your head into a brick
wall,
And hitting a locomotive, even one without cars, is less of a brick wall?
> such as how the fra determined the 800,000 was calculated, what type of equipment was involved in both collisions, combined speed at point of collision,
The FRA has run extensive crash tests with real (passenger) cars at the Pueblo test track, with all kinds of strain guages, speedos, and video cameras. There are mountains of data, including detailed videos of the various ways a carbody fails (and what happens to the crash test dummies inside the cabs).
What all comments on this thread overlook (or ignore) is that it is the bi-level cab car's crew cage which failed crumple zone test. A carbody without a cab must conform to a different ultimate compression standard (250,000 lbs, although this may have changed since I looked it up years ago). Nippon Sharyu (spelling?) could continue to build (and sell) bi-level "plain" coaches, but they decided to throw in the towel and exit the carbuilding business altogether.
> because, it was a loaded trailer, like hitting your head into a brick
wall,
And hitting a locomotive, even one without cars, is less of a brick wall?
> such as how the fra determined the 800,000 was calculated, what type of equipment was involved in both collisions, combined speed at point of collision,
The FRA has run extensive crash tests with real (passenger) cars at the Pueblo test track, with all kinds of strain guages, speedos, and video cameras. There are mountains of data, including detailed videos of the various ways a carbody fails (and what happens to the crash test dummies inside the cabs).
What all comments on this thread overlook (or ignore) is that it is the bi-level cab car's crew cage which failed crumple zone test. A carbody without a cab must conform to a different ultimate compression standard (250,000 lbs, although this may have changed since I looked it up years ago). Nippon Sharyu (spelling?) could continue to build (and sell) bi-level "plain" coaches, but they decided to throw in the towel and exit the carbuilding business altogether.
