Since privatisation in 1987, dozens of Japanese railway companies compete in regional and local passenger transportation markets; major companies include seven JR enterprises, Kintetsu Corporation, Seibu Railway and Keio Corporation. Some 250 high-speed Shinkansen trains connect major cities and Japanese trains are known for their safety and punctuality.[149][150] Proposals for a new Maglev route between Tokyo and Osaka are at an advanced stage.[151] There are 175 airports in Japan;[2] the largest domestic airport, Haneda Airport, is Asia's second-busiest airport.[152] The largest international gateways are Narita International Airport, Kansai International Airport and Chūbu Centrair International Airport.[153] Nagoya Port is the country's largest and busiest port, accounting for 10 percent of Japan's trade value.[154]