Unfortunately new rolling stock procurements can be clocked with a multi-year calendar!! While it is important to issue a Rolling stock RFP this year, Amtrak still has to survive on what they have, including Viewliner 2s for at least three or more years. Siemens has a production line in place and Stadler will have a production facility up and running soon for its KISS EMU cars to be built for Caltrain. Amtrak's new 5-Year plan mentio new the possibility of EMU passenger cars on the NEC. Starlet also has regular single-level passenger cars that can be offered.
Fixing up a few more of the wreck repairs and putting them in revenue service will at least help the spare ratio to keep the fleet in good shape.
Stadler is a bit of a wild card in the USA passenger car world with their Utah factory. They don't seem to make many traditional passenger cars (carriages in British-English), but they do make some (e.g., https://wwwstadlerra.../wady0814en.pdf and https://wwwstadlerra...e2/wrm0816e.pdf). However, many of the intermediate cars on their multiple-units are unpowered and very similar to cars in a trainset. For example, two cars are unpowered in the CALTRAIN EMU (https://wwwstadlerra.../kcal0716us.pdf) and all the intermediate cars are unpowered on this Austria Higher-Speed EMU (https://wwwstadlerra..._dowbz0110e.pdf). Stadler appears to be very aggressive about their future in the USA.
CAF's European operation is also making modern passenger cars including cars for the UK market with similar accessibility laws. If they were able to leverage the USA plant, they might be a contender outside of just more Viewliner production. The cars include sleepers, coaches and cab cars (British-English - driving trailers). There is some information at http://www.caf.net/e...talle.php?p=285 and (http://www.caf.net/e...talle.php?p=277).
This my long winded way of saying Siemens is only one option for future purchases even if this Caltrans/IDOT buy gives them an advantage.
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