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[quote user="zugmann"] [quote user="Bucyrus"]I don't know.  Let's say any kind of systems.  I am just asking whether PTC gives the biggest bang for the buck compared to other approaches for preventing accidents.[/quote]Can a question like that be answered?[/quote] Yes, I think it can be answered by anybody who knows the answer.  I think I recall reading somewhere about somebody making the claim that the money could be more effective if spent on measures other than the mandated PTC proscription.  So I thought I would ask here.
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