Japan National Routes are a network of highways that connect major cities and regions across Japan. These routes are essential for transportation, facilitating the movement of goods and people throughout the country. They are numbered and maintained by the Ministry of Land, Infrastructure, Transport and Tourism. The national routes vary in size and capacity, ranging from multi-lane expressways to smaller roads. They play a crucial role in Japan's economy and infrastructure, supporting both local and international travel. The routes are also important for emergency response and disaster relief efforts in the densely populated areas of Japan.