I don’t think it can. Nuclear is cheap at scale, not when you build a single prototype every 20 years. You need large countries with large programmes to be successful.
And the Chinese have built out a high speed rail system all the way to Ürümqi, China just east of Kazakhstan in western China. (They aren’t messing around).
https://en.wikipedia.org/wiki/High-speed_rail_in_China
https://openknowledge.worldbank.org/entities/publication/9e4...
Citation needed. We saw at-scale buildout during the 1970s and 1980, did it result in result in order-of-magnitude cost reductions back then?