Road transport is an essential element of the
Japanese transport network, and vital part of the
Japanese economy. Japan's history of having human-made roads ranging from the present to the
Jōmon period
The is the time in Japanese history, traditionally dated between 6,000–300 BCE, during which Japan was inhabited by a diverse hunter-gatherer and early agriculturalist population united through a common Jōmon culture, which reached a c ...
. The ''
Gokishichidō'' of the
Asuka period and the
Edo period ''
kaidō
were roads in Japan dating from the Edo period. They played important roles in transportation like the Appian Way of ancient Roman roads. Major examples include the Edo Five Routes, all of which started at Edo (modern-day Tokyo). Minor exam ...
'' both figured into the government's attempts to centralize their authority. As of April 2012, Japan had a road network of approximately of roads made up of of city, town and village roads, of
prefectural roads, of
national highways, and of
expressways
Expressway may refer to:
*Controlled-access highway, the highest-grade type of highway with access ramps, lane markings, etc., for high-speed traffic.
*Limited-access road, a lower grade of highway or arterial road.
*Expressway, the fictional slide ...
.
Highway systems
As of April 2012, Japan had a road network of approximately of roads made up of of city, town, and village roads, of
prefectural roads, of
national highways, and of
expressways
Expressway may refer to:
*Controlled-access highway, the highest-grade type of highway with access ramps, lane markings, etc., for high-speed traffic.
*Limited-access road, a lower grade of highway or arterial road.
*Expressway, the fictional slide ...
.
Roadside stations
A is a
government-designated
rest area. Not to be confused with the
service areas found along the country's expressways, the roadside stations are found along the national and prefectural highways of Japan. They serve as places for travelers to rest and they are also intended to promote
local tourism and trade. Shops within them often sell local produce, snacks, souvenirs, and other goods. All roadside stations provide 24-hour access to parking,
public toilets and facilities for sharing information.
As of September 2020, there are 1,180 roadside stations across Japan: 128 in
Hokkaido, 165 in the
Tōhoku area, 180 in the
Kantō region
The is a geographical area of Honshu, the largest island of Japan. In a common definition, the region includes the Greater Tokyo Area and encompasses seven prefectures: Gunma, Tochigi, Ibaraki, Saitama, Tokyo, Chiba and Kanagawa. Slight ...
, 82 in the
Hokuriku region
The was located in the northwestern part of Honshu, the main island of Japan. It lay along the Sea of Japan within the Chūbu region, which it is currently a part of. It is almost equivalent to Koshi Province and Hokurikudō area in pre-modern ...
, 135 in the
Chubu area, 149 in the
Kinki area, 107 in the
Chugoku area, 88 in the
Shikoku area, and 146 in the
Kyushu
is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surroun ...
region. The
Ministry of Land, Infrastructure, Transport and Tourism conducted an experiment at 13 roadside stations across the country from 2017 to 2018 to test the feasibility of having
self-driving cars carry people and products to and from homes within a range of from roadside stations.
Numbering
Each level of the Japanese road network has its own numbering scheme. For national and prefectural routes, numbers of lower value indicate greater significance to the system. In the national highway network, highways with values 1 to 57 were originally established as the Primary National Highways, routes with three-digit numbers were established later and the earliest of those were originally called Secondary National Highways. The distinction between the primary and secondary highways was dropped in 1965 and now the national highways are all referred to officially as General National Highways. The only highway to be given a two digit number since the creation of the Primary National Highways is
National Route 58, which connects the capital cities
Kagoshima and
Naha of
Kagoshima Prefecture
is a prefecture of Japan located on the island of Kyushu and the Ryukyu Islands. Kagoshima Prefecture has a population of 1,599,779 (1 January 2020) and has a geographic area of 9,187 km2 (3,547 sq mi). Kagoshima Prefecture borders Kumamoto P ...
and
Okinawa Prefecture
is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi).
Naha is the capital and largest city o ...
, the latter of which was
occupied
' (Norwegian: ') is a Norwegian political thriller TV series that premiered on TV2 on 5 October 2015. Based on an original idea by Jo Nesbø, the series is co-created with Karianne Lund and Erik Skjoldbjærg. Season 2 premiered on 10 October 2 ...
during the creation of the system. It was added to the system shortly after the handover of the Ryukyu Islands from the United States to Japan.
The national and regional expressways follow their own numbering scheme that was implemented in 2016. The first two group of expressways are numbered with the letter ''E'' followed by a number. The second of these two groups has the letter ''A'' appended to the designation to indicate that it a route related to the non-appended route. The numerical value chosen for these expressways generally matches the number of a pre-exisisting national highway that parallels the expressway.
An example of this layout is that
National Route 4 travels from Tokyo to Aomori.
It is paralleled by the Tōhoku Expressway, so it was numbered E4. The
Hachinohe Expressway is a
spur route
A spur route is a short road forming a branch from a longer, more important road such as a freeway, Interstate Highway, or motorway. A bypass or beltway should not be considered a true spur route as it typically reconnects with another or the s ...
of the Tōhoku Expressway, so it was numbered E4A alongside several other routes, due to their relation to the Tōhoku Expressway.
As of September 2020, there are no expressways designated with numerical values greater than 98. Expressways falling between the numbers 59 and 98 were given numbers that don't match any existing national highways to prevent any route from having a three-digit numerical value. The final grouping of national and regional expressways are
beltways, they are numbered with the letter ''C'' followed by a number rather than ''E'' like the other expressways. An exception to the rules is found in the
Tokyo Bay Aqua-Line which is numbered CA.
History
Prehistory
The initial development of roads in Japan can be traced back to the
Jōmon period
The is the time in Japanese history, traditionally dated between 6,000–300 BCE, during which Japan was inhabited by a diverse hunter-gatherer and early agriculturalist population united through a common Jōmon culture, which reached a c ...
. The remains of a man-made road were uncovered at the
Sannai-Maruyama Site that was occupied between 3900 – 2200 BC.
Archaeologists uncovered a and road at the site that linked the ancient settlement to the sea.
Feudal period
The existence of a road network in Japan as early as the 3rd century is noted in the Chinese ''
Records of the Three Kingdoms
The ''Records or History of the Three Kingdoms'', also known by its Chinese name as the Sanguo Zhi, is a Chinese historical text which covers the history of the late Eastern Han dynasty (c. 184–220 AD) and the Three Kingdoms period (220– ...
''.
The first Japanese written record of a road in Japan was created in 720 when the Yamanobe Road was written about in the ''
Nihon Shoki''. Established sometime during the
Asuka period, the Yamanobe Road was a narrow path that linked the cities of Osaka and Nara.
The ''
Gokishichidō'' of the
Asuka period and the
Edo period ''
kaidō
were roads in Japan dating from the Edo period. They played important roles in transportation like the Appian Way of ancient Roman roads. Major examples include the Edo Five Routes, all of which started at Edo (modern-day Tokyo). Minor exam ...
'' both figured into the government's attempts to centralize their authority.
Meiji period to World War II
The kaidō of the Edo period were still in service at the onset of the
Meiji period, however, the roads were never intended to be used by wheeled vehicles and they rapidly broke down under the additional strain. Some of the pressure was taken off of the strained road network by the Meiji government's decision to prioritize the rail and sea networks over the roads.
The was enacted in 1919, establishing a classification of five categories of roads under the control of the national government: national roads, prefectural roads, district roads, city roads, and municipal roads.
It also reorganized the existing national roads. District roads were redesignated as prefectural roads on 1 April 1923 after the district was removed as level of government administration.
Allied occupation to present

After the end of the occupation, just 14 percent of all roads in Japan were paved. By 1965 that percentage had increased to 57, and further by 1975 when 79 percent of roads were paved. As of 2018, over 90 percent of roads and highways in Japan have been paved. Since 1954 Japan has invested in a series of five-year plans to improve its roads and highways. Expenditures from these plans have steadily increased from the initial 308.6 billion yen being spent in the first plan to 65.3 trillion yen in the most recent plan.
In April 1956 the
Japan Highway Public Corporation
, or JH, was a public company established after World War II to construct and manage highway networks in Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Paci ...
was established by the national government with the task of constructing and managing a nationwide network of expressways. In 1957 permission was given to the corporation to commence construction of the
Meishin Expressway
The , or Nagoya-Kōbe Expressway is a toll expressway in Japan. It runs from a junction with the Tōmei Expressway in Komaki, Aichi (outside Nagoya) west to Nishinomiya, Hyōgo (between Osaka and Kobe). It is the main road link between Osaka and ...
linking the cities of
Nagoya and
Kobe
Kobe ( , ; officially , ) is the capital city of Hyōgo Prefecture Japan. With a population around 1.5 million, Kobe is Japan's seventh-largest city and the third-largest port city after Tokyo and Yokohama. It is located in Kansai region, whic ...
,
the first section of which opened to traffic in 1963.
Road passenger and freight transport expanded considerably during the 1980s as private ownership of motor vehicles greatly increased along with the quality and reach of the nation's roads. Bus companies, including the
JR Bus company, operate long-distance bus services on the nation's expanding expressway network. In addition to relatively low fares and deluxe seating, the buses are well utilized because they continue service during the night, when air and train services are limited.
The cargo sector grew rapidly in the 1980s, recording 274.2 billion
tonne-kilometer
The units of measurement in transportation describes the unit of measurement used to express various transportation quantities, as used in statistics, planning, and their related applications.
Transportation quantity
The currently popular units ...
s in 1990. The freight handled by motor vehicles, mainly trucks, in 1990, was over 6 billion metric tons, accounting for 90 percent of domestic freight tonnage and about 50 percent of tonne-kilometers.
See also
*
Rail transport in Japan
References
External links
*
{{DEFAULTSORT:Road Transport in Japan
Roads in Japan