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商业 · 2010/8/261 分钟阅读
Track Safety Standards; Concrete Crossties
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摘要
FRA is proposing to amend the Federal Track Safety Standards to promote the safety of railroad operations over track constructed with concrete crossties. In particular, FRA is proposing specific requirements for effective concrete crossties, for rail fastening systems connected to concrete crossties, and for automated inspections of track constructed with concrete crossties. In addition, FRA is proposing to remove the provision on preemptive effect.
来源原始语言: Federal Register — Transportation Department打开原始公告 →