China 's high-speed rail network is now the world 's busiest with 2020 ridership exceeding 300 . China launched the country 's second high-speed service in daily . `` Ours offer the smoothest and fastest ride in the world . '' The rapid construction has raised doubts about the service 's safety and commercial viability . The government plans to complete a 25,000-kilometer high-speed network by 2007 .
China 's high-speed rail network is now the world 's busiest with 2020 ridership exceeding 300 . China launched the country 's second high-speed service in daily . The rapid construction has raised doubts about the service 's safety and commercial viability . The government plans to complete a 25,000-kilometer high-speed network by 2007 .