@mekkaokereke
It's not a question of being smarter. It's a difference in history.
The US has a legacy transportation system that needs to be reformed.
China has only had widespread private car ownership relatively recently. Public transportation was more entrenched because of this.
Having said that, Chinese passenger rail, especially high speed rail has been losing money as operating costs remain high, and usage on many routes has been overestimated. It's only a matter of time before some of these lines end up dropped.