Tokyo Gaikan Expressway

The Tokyo Gaikan Expressway (東京外環自動車道, Tōkyō Gaikan Jidōshadō) is a national expressway in Japan. It is owned and operated by East Nippon Expressway Company.

Tokyo-Gaikan Expressway
東京外環自動車道
Route information
Length33.7 km[1] (20.9 mi)
Existed1992[2]–present
Major junctions
FromTōmei Junction in Setagaya, Tokyo
Tōmei Expressway
ToKōya Junction in Ichikawa, Chiba
Higashi-Kantō Expressway
Shuto Expressway Bayshore Route
Location
Major citiesWakō, Toda, Saitama, Kawaguchi, Sōka, Yashio, Misato
Highway system
National highways of Japan
Expressways of Japan

Overview

Tokyo Gaikan Expressway at Misato Junction where it crosses the Jōban Expressway.

The name Gaikan refers to the route's status as an outer ring road (beltway) for Tokyo. The expressway is also referred to simply as Gaikan for short. It is the second of three expressway ring routes in the greater Tokyo area: the innermost is the Central Circular Route, then the Gaikan, and the outermost is the Ken-Ō Expressway.[2] The Inner Circular Route of the Shuto Expressway is apparently not considered a true ring road, as the alternate Japanese name of the Ken-Ō Expressway (English name is Metropolitan Inter-City Expressway) is 三環状道路, with the first character meaning 'three' not 'four.' A section of the expressway on the northern side of the Tokyo area was the first to open to traffic (Ōizumi Junction to Misato-minami Interchange). Most of this section is an elevated roadway built on the median of National Route 298 with curved windbreaks on both sides. Most of the roadway has two lanes in each direction (three lanes from Ōizumi Junction to Wakō-kita Interchange).

The eastern section from Misato to Ichikawa was opened to the public on the 2nd June, 2018, three years after schedule.[3] The western section from Izumi to the Chuo expressway is under construction, while the final section linking to the Tomei expressway is still at the planning stage.[4] The western section will pass through the densely populated suburbs of western Tokyo; large parts of it will consist of tunnels constructed at least 40 m underground (deep underground).[5]

The toll for a regular passenger car is currently 500 yen regardless of the distance travelled. Electronic Toll Collection (ETC) is accepted.[6]

List of interchanges and features

PrefectureLocationkmmiExitNameDestinationsNotes
16.2 km section under construction, planned connection to Tōmei Expressway
TokyoNerima0.00.050ŌizumiTokyo Metropolitan Route 24 (Nerima Tokorozawa Route)Current western terminus
SaitamaWakō3.42.151WakōSaitama Prefecture Route 88 (Wakō Inter Route)
5.33.352Wakō-kita National Route 298No through access between exit and PA
5.33.3PANiikuraU-turns possible
Wakō / Toda borderSakitama Bridge
Toda7.64.753Toda-nishi National Route 298Misato-bound exit, Ōizumi-bound entrance only
8.55.360Bijogi Ikebukuro Route
Ōmiya Route
Controlled by traffic lights
9.96.261Toda-higashi National Route 298Ōizumi-bound exit, Misato-bound entrance only
Kawaguchi12.37.662Gaikan Urawa National Route 298Ōizumi-bound exit, Misato-bound entrance only
14.08.763Kawaguchi-nishi National Route 298Misato-bound exit, Ōizumi-bound entrance only
16.810.464Kawaguchi-Chūō National Route 298Ōizumi-bound exit, Misato-bound entrance only
17.610.970Kawaguchi Tōhoku Expressway north
Kawaguchi Route south
19.011.871Kawaguchi-higashi National Route 298Ōizumi-bound exit, Misato-bound entrance only
Sōka22.413.972Sōka National Route 298
National Route 4
Yashio73 / PAYashio National Route 4Planned
Misato28.417.674Gaikan Misato-nishi National Route 298Misato-bound exit, Ōizumi-bound entrance only
29.618.480Misato Jōban Expressway
Misato Route
31.019.381 / TBMisato-Chūō National Route 298Ōizumi-bound exit, Kōya-bound entrance only
33.720.982Misato-minami National Route 298Kōya-bound exit, Ōizumi-bound entrance only
ChibaMatsudo39.124.383Matsudo National Route 298Ōizumi-bound exit, Kōya-bound entrance only
Ichikawa40.124.984Kita-Chiba National Route 464 (Kita-Chiba Road)Planned
41.325.785Ichikawa-kita National Route 298
Chiba Prefecture Route 264 (Takatsuka Shinden Ichikawa Route)
Kōya-bound exit, Ōizumi-bound entrance only
44.727.886Ichikawa-Chūō National Route 298Ōizumi-bound exit, Kōya-bound entrance only
45.928.590Keiyō Keiyō Road
47.629.691Ichikawa-minami National Route 298Kōya-bound exit, Ōizumi-bound entrance only
49.230.6100Kōya Higashi-Kantō Expressway
Bayshore Route
Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. "E-NEXCO Expressway Data". Retrieved 2008-04-13.
  2. Ministry of Land, Infrastructure and Transport. "History of Tokyo's 3 Ring Roads". Archived from the original on 2008-04-02. Retrieved 2008-04-17.
  3. "E-NEXCO Opening Schedule". Retrieved 2008-04-15.
  4. "E-NEXCO Opening Schedule". Retrieved 2019-12-30.
  5. Ministry of Land, Infrastructure and Transport. "Tokyo Gaikan Website". Retrieved 2008-04-15.
  6. "E-NEXCO Drive Plaza Route Search". Retrieved 2008-04-15.

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