- 9,554
- Vermont
- catamount39
First off, Amtrak is a government funded company (and government operated) that runs America's passenger services, they use entirely private rail lines owned by Class I railways. They rely on funding to operate, pay employees, buy equipment. They need government funding as passenger operations, unless commuter, are something that does not make a profit. Notice I said the Big 7, and didn't mention Amtrak.
Second, the emergency brake that you are thinking of @PeterJB is PTC, yes. All Class I's have it at this point for the most part. Unless given an exemption by Amtrak, any railway line that hosts an Amtrak is required by US law to have either PTC or CTC to maintain safe operations. PTC is supposed to immediately apply emergency braking and cut power to a locomotive which is goes over the 2mph window of the limit. However, this new bypass that the state of Washington purchased from Tacoma Rail, is not equipped with PTC signalling. However, the mainline which the bypass goes around, is equipped. Another emergency brake that is common on actual high speed services (lines where the locomotives are permitted to run at 90 or above) use what's called an ATS brake shoe. This activates immediately with any over speed at all.
Third, no, the speeding data means jack. What must be known is that this is a brand new locomotive that Amtrak had just "finished" putting through trials and non-revenue testing, and that we must look at all circumstances before actually coming to a conclusion about this derailment. The engineer is skilled man of many years and a well respected individual that is a role model. Sure, a mistake is possible, but just knowing the speeding is not helpful to the situation other than explaining the crash damage. Every locomotive cab is fitted with a camera, and that is something else to look at along with telemetry from the locomotive itself. Another thing to be noted is that both line and crew were unfamiliar with the territory, I am unaware as to when operations began over the bypass in terms of if they have run non-revenue runs over this line.
Edit: And something that is worth mentioning, the proclaimed "speed limit change" being 2 miles before the bridge is complete and udder rubbish. The speed change was at the bridge, not before it. Therefor in lies another issue. Why on earth was the posted limit not imposed within a reasonable distance of the bridge, and why was this not brought to the attention of the crew? And to clarify for those who don't know, no, the speed limit does not appear on the dash of the locomotive here in the United States unless the line being traveled upon has cab signalling or the line and locomotive are equipped with PTC.
Second, the emergency brake that you are thinking of @PeterJB is PTC, yes. All Class I's have it at this point for the most part. Unless given an exemption by Amtrak, any railway line that hosts an Amtrak is required by US law to have either PTC or CTC to maintain safe operations. PTC is supposed to immediately apply emergency braking and cut power to a locomotive which is goes over the 2mph window of the limit. However, this new bypass that the state of Washington purchased from Tacoma Rail, is not equipped with PTC signalling. However, the mainline which the bypass goes around, is equipped. Another emergency brake that is common on actual high speed services (lines where the locomotives are permitted to run at 90 or above) use what's called an ATS brake shoe. This activates immediately with any over speed at all.
Third, no, the speeding data means jack. What must be known is that this is a brand new locomotive that Amtrak had just "finished" putting through trials and non-revenue testing, and that we must look at all circumstances before actually coming to a conclusion about this derailment. The engineer is skilled man of many years and a well respected individual that is a role model. Sure, a mistake is possible, but just knowing the speeding is not helpful to the situation other than explaining the crash damage. Every locomotive cab is fitted with a camera, and that is something else to look at along with telemetry from the locomotive itself. Another thing to be noted is that both line and crew were unfamiliar with the territory, I am unaware as to when operations began over the bypass in terms of if they have run non-revenue runs over this line.
Edit: And something that is worth mentioning, the proclaimed "speed limit change" being 2 miles before the bridge is complete and udder rubbish. The speed change was at the bridge, not before it. Therefor in lies another issue. Why on earth was the posted limit not imposed within a reasonable distance of the bridge, and why was this not brought to the attention of the crew? And to clarify for those who don't know, no, the speed limit does not appear on the dash of the locomotive here in the United States unless the line being traveled upon has cab signalling or the line and locomotive are equipped with PTC.
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