Roads in Japan are developed and maintained well
throughout the country, from large cities to mountain areas. Although
most expressways are toll roads. Railroads also cover the whole nation,
except some mountain areas. Train services are operated by JR (Japan
Railways), local municipal entities and private companies. There are
about 80 airports in Japan, but often located far from city centers. As
Japan is an island country, marine transportation has flourished and
harbor towns have prospered.