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The question is is it possible to achive this kind of pattern between a light-rail system and NCRR. Even with a waiver the crashworthiness requirements are much higher than for light-rail vehicles. The Siemens ACS-64 got a waiver and still is about 11 tons heavier than the Siemens Vectron the European parent model. Cause are very different crashworthiness philosophies. But that topic is to complex to discuss in this thread. With high-speed trains on the horizon in the USA the Volpe National Transportation Systems Center (part of DOT) started to compare FRA and European standards (using crush zones like cars). Here are the result of different crash scenarios using FRA compliant cars and locomotives as well as using Crash Energy Management compliant equipment: <a href="https://ntl.bts.gov/lib/42000/42800/42836/rr0606.pdf">https://ntl.bts.gov/lib/42000/42800/42836/rr0606.pdf</a> [quote user="RME"]Whether it would survive the first Eschede-style high-speed 'news opportunity' involving an American consist built under official 'waiver' is another matter...[/quote] There will remain crash scenarios that are not endurable independent of standard. the European standards were developed investigating more than 300 accidents. About 80% of the found scenarios are covered by todays European standards. Eschede would not be in the 80%. But the main reason for Eschede was eliminated. Main reason was a broken wheel rim seperated from the wheel by an elastic inlay. This type of wheel was banned from use on railroads and replaced on ICE trains. Regards, Volker
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