In case you were wondering who helps FRA develop passenger railroad safety rules:
In developing proposed safety standards for passenger equipment operating at speeds greater than 125 mph but not exceeding 150 mph, FRA formed a subgroup (the ‘‘Tier II Equipment Subgroup’’) of Working Group members representing interests associated with the provision of rail passenger service at such high speeds. The full Working Group recommended the formation of a smaller subgroup to consider Tier II passenger equipment standards, as a number of Working Group members found the operation of high-speed passenger equipment to be outside their immediate interest and expertise. FRA invited representatives from organizations including Amtrak, the BLE, BRC, RPI, and UTU to participate in developing the Tier II standards.
In other words, Amtrak and some union bosses. Does anyone believe they have the mathematical or technical expertise to do cost-benefit analysis? Or even care about the costs of excessive safety regulations?