High-speed rail in Europe
Switzerland has no high-speed trains of its own yet. French TGV (TGV Lyria) and German ICE lines extend into Switzerland, but given the dense rail traffic, short distances between Swiss cities (because of the country's small size) and the often difficult terrain, they do not attain speeds higher than 200 km/h (ICE3) or 160 km/h (TGV, ICE1, ICE2). The fastest Swiss trains are the ICN tilting trains, operated by the Swiss Federal Railways since May 2000. They can reach higher speeds than conventional trains on the curve-intensive Swiss network, however the top speed of 200 km/h can only be reached on high-speed lines. The former Cisalpino consortium owned by the Swiss Federal Railways and Trenitalia used Pendolino tilting trains on two of its international lines. These trains are now operated by the Swiss Federal Railways and Trenitalia.
High-speed rail in China
Higher-speed express train service allowed more trains to share the tracks and improved rail transport capacity. But high-speed trains often have to share tracks with slower, heavy freight trains—in some cases with as little as 5 minutes headway. To attain higher speeds and transport capacity, planners began to propose a passenger-dedicated HSR network on a grand scale. Initiated by MOR's 2004 "Mid-to-Long Term Railway Network Plan", a national grid composed of eight high-speed rail corridors, four running north-south and four going east-west, was to be constructed. The envisioned network, together with upgraded existing lines, would total in length. Most of the new lines follow the routes of existing trunk lines and are designated for passenger travel only. They became known as passenger-designated lines (PDLs). Several sections of the national grid, especially along the southeast coastal corridor, were built to link cities that had no previous rail connections. Those sections will carry a mix of passenger and freight. High-speed trains on PDLs can generally reach . On mixed-use HSR lines, passenger train service can attain peak speeds of . The earliest PDLs built were sections of the corridors that connected large cities in the same region. On April 19, 2008, Hefei–Nanjing PDL in the East opened with a top-speed of . On August 1, 2008, the Beijing–Tianjin Intercity Railway opened in time for the 2008 Summer Olympics. This line between northern China’s two largest cities, was the first in the country to accommodate commercial trains with top speed of and featured the CRH2C and CRH3C train sets. This ambitious national grid project was planned to be built by 2020, but the government's stimulus has expedited time-tables considerably for many of the lines.