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« Are Bigger Trucks a Good Idea? | Main | Recall: CIO's Loom Large in Reclaiming Damaged Product »

October 28, 2007

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Bill Perry

I retired from the FRA. This agency is an advocate of Advanced Train Control. On a related matter, you would be amazed at how the Railroads determine stopping (braking) distances and space wayside signals. Curiously each RR company has its unique braking distance charts? Very bazaar, the law of physics applies equally to all trains. ATS will apparently render this "witchcraft" obsolete. Each train will use actual braking data, i.e., a distance - speed over time program to calculate and ascertain actual braking distance. See Patent-Storm; an application by Kull.

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