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Chinese rail engineers solve problem of tunnel boom for their high speed maglev trains.
In other railway news: Excitement in Canada as Halifax - a city of half a million people - is going to have its 3 passenger trains a week upgraded to have refurbished 1950's passenger cars. #CanadaFail
https://www.theguardian.com/environment/2025/aug/07/maglev-train-researchers-may-have-solved-tunnel-boom-shock-waves
