The Shanghai–Nanjing Intercity High-Speed Railway or Huning Intercity High-Speed Railwayis a 301km long high-speed rail line between Shanghai and Nanjing Hu and Ning are, respectively, shorthand Chinese names for Shanghai and Nanjing. The Huning Intercity High-Speed Railway largely follows the route of the preexisting Nanjing-Shanghai section of the conventional Beijing-Shanghai Railway and the high speed Beijing–Shanghai High-Speed Railway. Construction of this high-speed railway began in July 2008. The line went into test operations in early April 2010, and opened for full service on July 1,2010. The line has a design speed of 350 km/h (217 mph).The journey time between the two cities has been shortened from 120 minutes to 73 minutes on non-stop service.