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19-836: The section owned by the Central Nippon Expressway Company runs from the east end of the Shin-Shōnan Bypass west along the bypass and north to Akiruno Interchange. The rest of the route is owned by the East Nippon Expressway Company. The expressway begins at the west end of the Fujisawa Bypass (part of Route 1 ) in Fujisawa, Kanagawa . From here the expressway is concurrent with the Shin-Shōnan Bypass , which it splits from as that road turns toward

38-610: Is 334.0 kilometers (207.5 mi). This is equivalent to the distance from Mito to Kakegawa / Ichinoseki . The following sections of Route 6 overlap with other routes: One side of National Route 6 is known as the "nuclear dense zone". Tōkaimura (the first nuclear power plant of Japan ), Ōkuma (center of the Fukushima Daiichi nuclear disaster ) and Naraha (location of the Fukushima Daini Nuclear Power Plant ) are located on adjacent of Route 6. Due to

57-466: Is the longest route when seabound routes are factored in. The highway's origin and eastern terminus lie at Nihonbashi in Tokyo's Chūō ward . At Nihonbashi it meets national routes 4, 6 , 14 , 15 , 17 , and 20 . The highway passes through the cities of Kawasaki , Yokohama , Odawara , Numazu , Shizuoka , Hamamatsu , Nagoya , Yokkaichi , Ōtsu , and Kyoto . Its endpoint and western terminus lie in

76-451: Is the modern incarnation of the pre-modern Tōkaidō . The main line of National Route 1 has a length of 638.4 kilometers (396.7 mi). When bypasses signed as National Route 1 are included, its total distance increases to 777.9 kilometers (483.4 mi). Out of all of the national highways in Japan, it is the second longest land-based route after National Route 4 , though National Route 58

95-681: The Kantō region with the city of Osaka , Osaka Prefecture in the Kansai region , passing through the Chūbu region en route. It follows the old Tōkaidō westward from Tokyo to Kyoto , and the old Kyo Kaidō from there to Osaka. Between Tokyo and Aichi Prefecture it parallels the Tomei Expressway ; from there to Mie Prefecture , the Higashi-Meihan Expressway , and from Shiga Prefecture to Osaka,

114-676: The Meishin Expressway . It has a total length of 760.9 kilometers (472.8 mi). At its eastern terminus in Nihonbashi , Chūō, Tokyo , it meets National Routes 4 , 6 , 14 , 15 , 17 , and 20 . At its western terminus in Umeda , Kita-ku, Osaka , it links with Routes 2 , 25 , 26 and other highways. National Route 1 links Tokyo to the important prefectural capitals of Yokohama ( Kanagawa Prefecture ), Shizuoka , Nagoya (Aichi Prefecture), Otsu ( Shiga Prefecture ), Kyoto, and Osaka. It

133-668: The Umeda district of Osaka's Kita ward . In Umeda, it has a junction with national routes 2 , 26 , 163 , 165 , 25 , and 176 . National Route 1 was preceded by the Tōkaidō between Tokyo and Kyoto and the old Kyo Kaidō from Kyoto to Osaka . The road's construction was ordered by the first shōgun of the Edo period, Tokugawa Ieyasu . It served to link the old capital of Japan, Kyoto, to Tokugawa's new capital, Edo . The Tōkaidō's post stations , known in Japanese as shukuba , were captured by

152-509: The northward Tōkaidō functioned as one to the Pacific coasts of Tōhoku. On 4 December 1952 the Ritsuryō Tōkaidō north of Tokyo was designated First Class National Highway 6, while the other section was designated as National Route 1 . On 1 April 1965 the route was re-designated as General National Highway 6. On 12 March 2011, access to a large section of National Route 6 was restricted due to

171-553: The TAMA firms. In 1998 goods shipped from TAMA had twice the shipment value of the Silicon Valley . Parking areas are appended with PA and smart interchanges are appended with SIC. There are currently no service areas . Japan National Route 1 National Route 1 ( 国道1号 , Kokudō Ichi-gō ) is a major highway on the island of Honshū in Japan . It connects Chūō, Tokyo in

190-464: The foundation of Kamakura Kanagawa, Ritsiryō Tōkaidō was divided into two roads: the westward Tōkaidō which connects southern Kantō (Kamakura, Edo , Tokyo) and Kyoto, and the northward Tōkaidō which connects southern Kantō and Pacific coasts of Tōhoku. Since the foundation of Edo, Tōkaidō was narrowed by the Tokugawa Shogunate , the westward Tōkaidō functioned as a seaside road to Kyoto and

209-409: The highway almost entirely along its current routing. On 1 April 1965 the route was redesignated as General National Route 1. All junctions listed are at-grade intersections unless noted otherwise. Japan National Route 6 National Route 6 ( 国道6号 , Kokudō Roku-gō ) is a Japanese highway from Tokyo to Sendai that goes through the cities Mito , Iwaki and Sōma . It traces

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228-637: The nuclear disaster, access is prohibited to a zone of 20 kilometers (12 mi) radius from the Fukushima Daiichi Nuclear Power Plant. National Route 6 was blocked for non-authorized traffic between Hirono (the Iwaki side) and Haranomachi (the Sōma side). The ban was lifted in September 2014 after the road decontamination, and vehicles (with exception of motorcycles and bicycles) are now allowed on

247-654: The old Mito Kaidō route from Tokyo to Mito, and, for much of its 353.6-kilometer (219.7 mi) route, it runs parallel to the Jōban railway line and the Jōban Expressway . Originating in Chūō, Tokyo (at Nihonbashi , which also marks the origins of Routes 1 , 4 , 14 , 15 , 17 and 20 ), it ends in Miyagino-ku, Sendai (at the Nigatake interchange, junction with Route 45 , also

266-603: The origin of Route 47 ) Major cities and villages it passes through include: Kashiwa , Toride , Tsuchiura , Ishioka , Mito , Hitachi , Iwaki , Tomioka , Ōkuma , Sōma , Watari , Iwanuma The actual terminus is Iwanuma in Miyagi (at the Fujinami intersection) which is the junction of Routes 4 and 6. In the areas north of Iwanuma which overlap with the Route 4, signboards for Route 6 are not posted. The distance from Tokyo to Iwanuma

285-690: The planned Yokohama Ring Expressway will be incorporated into the expressway. In Chiba Prefecture , land acquisition is under way for an 18 kilometres (11 mi) gap in the expressway to be filled. The new segment is expected to reach completion by 2024. Along with Japan National Route 16 , the Ken-Ō Expressway will connect the entire length of the Technology Advanced Metropolitan Area (TAMA) — an inland industrial region covering an area of 3000 km, in 74 municipalities, and home to over 10 million people of whom 4 million work in

304-651: The present east end of the Chiba-Tōgane Road , a two-lane expressway. The Ken-O Expressway continues south, looping west to end at the junction of the Tokyo Bay Aqua-Line and Tateyama Expressway . The Ken-Ō Expressway was linked with the Shin-Tōmei Expressway on 28 January 2018. The smart interchange in Ōamishirasato was opened on 24 March 2019. Portions of the existing Yokohama-Yokosuka Expressway , Shin-Shōnan Bypass and Chiba-Tōgane Road and

323-602: The printmaker Utagawa Hiroshige in his ukiyo-e prints, The Fifty-three Stations of the Tōkaidō . In 1919, the first Road Act was passed, establishing a highway also called National Route 1 between Tokyo and the city of Shingū in Wakayama Prefecture partially along the current route. On 4 December 1952 the route was designated by the Cabinet of Japan as Primary National Highway 1 between Tokyo and Osaka , establishing

342-712: The south at Chigasaki. The Ken-O Expressway then heads north, crossing the Tōmei Expressway and Chūō Expressway . Continuing north, then east. There are junctions with the Kan-Etsu Expressway , Tōhoku Expressway , and Jōban Expressway . It then turns southeast, where it meets the Higashi-Kantō Expressway east of Narita Airport , there is gap in the expressway here that is planned to be closed. The expressway resumes at Choshu Renraku Road in Tōgane . It crosses

361-722: The stretch of road. National Route 6 is a part of the lengthened Tōkaidō which connects the Kansai region (Kinai) , or Nara and Kyoto in particular, and the Pacific coast of Tōhoku (called the Tagajō ). During the Ritsuryō period, roads from Kinai to the Tagajō were divided into two: the Tōkaidō eastern sea road (via Nagoya , Hamamatsu , Tokyo and Mito ) and the Tōsandō eastern mountain road (via Gifu , Shiojiri , Takasaki and Utsunomiya ). During

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