The Acela Expresses proved to be too heavy and too wide to deploy the tilting mechanisms properly, which limits their speed on curves.
That's the same Bombardier that built a set of regional trains that look a lot like TGV sets to serve the south coast of France (including Cannes and Nice) and onward to Ventimiglia, in Italy. Just one problem ...
The trains were delivered in November 2014 but they didn’t come into service as they turned out to be a few millimeters too high for Italian tunnels, Nice Matin newspaper reported, citing former railway workers group "The shipwrecks of the TER."That's after French railroad SNCF ordered two thousand trains (are we referring to multiple unit sets or to individual cars) that left the works too wide for the platforms.
Eric Sauri, president of the group, told the paper that the SNCF confirmed that the Regio 2N trains “would not go further than the town of Menton because they did not pass under the tunnels."
Makes one think that promoters of the Houston to Dallas high speed rail project weigh the proposals from the current countries that build such trains and look for the kind of home-grown talent the North Shore Line used to develop the Electroliners.