One of the reasons Japan 's railway network is so popular is the commuter traffic . Japan has strived to be at the world 's forefront for rail research and development . It is a very large country with many different types of transportation, but it also has some unique advantages that make its system more efficient than others in Asia ( such as having an extensive network ). An estimated 24 million passengers use the network every day .
Japan has strived to be at the world 's forefront for rail research and development . It is a very large country with many different types of transportation, but it also has some unique advantages that make its system more efficient than others in Asia ( such as having an extensive network ). An estimated 24 million passengers use the network every day .