Part of the blame is outdated train safety requirements from the Federal Railroad Administration. They like big heavy trains even for commuter rail. https://bi

Part of the blame is outdated train safety requirements from the Federal Railroad Administration. They like big heavy trains even for commuter rail. https://bikeeastbay.org/rail/fra.html https://bikeeastbay.org/rail/fra.html https://nextcity.org/daily/entry/modern-european-train-designs-american-tracks-2015-fra https://nextcity.org/daily/entry/modern-european-train-desig...