摘要
High-speed rails （HSR） are playing an importantrole in the transportation systems across the world.In Japan, the Shinkansens carry more than 250million passengers each year. In Europe, thetrans-European high-speed rail network is inoperation. At the beginning of 2011, U.S. Presidenthas called for a six-year, $53 billion budget for HSR.Nowadays, China has built the world’s largest HSRnetwork of over 4 600 miles.
High-speed rails （HSR） are playing an importantrole in the transportation systems across the world.In Japan, the Shinkansens carry more than 250million passengers each year. In Europe, thetrans-European high-speed rail network is inoperation. At the beginning of 2011, U.S. Presidenthas called for a six-year, $53 billion budget for HSR.Nowadays, China has built the world’s largest HSRnetwork of over 4 600 miles.
