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Keiyō Road

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Title: Keiyō Road  
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Subject: Chiba Prefecture, Funabashi, Chiba, Higashi-Kantō Expressway, Tateyama Expressway, Tokyo Gaikan Expressway
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Keiyō Road

Keiyō Road
;">Route information
Existed: 1960[1] – present
;">Major junctions
From: Shinozaki Interchange in National Route 14
To: Soga Interchange in National Route 16
;">Highway system
National highways of Japan
Expressways of Japan

The Keiyō Road (京葉道路 Keiyō Dōro?) is a toll road in Japan. It is owned and operated by East Nippon Expressway Company.


Keiyō is a kanji acronym of two characters, each representing the two major urban areas connected by the route. The first character represents Tokyo (?) and the second represents Chiba (?)

The route is officially designated as National Route 14 (Shinozaki Interchange to Anagawa Interchange) and a bypass for National Route 16 (Anagawa Interchange to the terminus). The section from the origin to Miyanogi Junction is classified as a road for motor vehicles only (自動車専用道路 Jidōsha Senyō Dōro?), while the section from Miyanogi Junction to the terminus is classified as a national highway for motor vehicles only with national expressway concurrency (高速自動車国道に並行する一般国道自動車専用道路 Kōsoku Jidōsha Kokudō ni Heikōsuru Ippan Kokudō Jidōsha Senyō Dōro?) as it is concurrent with the Higashi-Kantō Expressway Tateyama Route.[2]


The road is an important artery in the eastern part of the Tokyo urban area, carrying an average of 315,236 vehicles per day.[3]

Starting in Edogawa Ward, Tokyo, the road crosses the Edo River to the east into Chiba Prefecture, passing through the cities of Ichikawa, Funabashi, and Narashino. In this area the road is roughly parallel to the Higashi-Kantō Expressway a few kilometers to the south. The road meets this expressway at Miyanogi Junction and then turns south, passing through the city of Chiba. At the south end of the city beyond Soga Interchange the Keiyō Road terminates, however the roadway continues as the Tateyama Expressway.

The speed limit is 60 km/h on the section designated as Route 14, and 80 km/h on the section designated as Route 16.


For the purposes of toll assessment, the road is divided into 6 sections. Usage of one section incurs a toll of 100 yen for passenger cars, light trucks, and 2-wheeled vehicles, 150 yen for large trucks and buses, and 350 yen for oversized vehicles. Traversing the entire road therefore costs 600 yen for a passenger car.[4]

The method of toll collection differs depending on the section of road used. From Shinozaki Interchange to Miyanogi Junction, toll booths at interchanges and toll gates on the main route are positioned so that a flat rate is charged at each station. From Miyanogi Junction to the terminus, tickets are issued upon entering the road which are used to calculate the toll at the exit point; this is the same system used on the Higashi-Kantō and Tateyama Expressways. Electronic Toll Collection (ETC) is accepted for payment, however commuter, off-peak, and late night discounts do not apply.

Due to the positioning of toll collection points, there are a few potential journeys that do not incur any toll at all. These include travelling only between Shinozaki Interchange and Ichikawa Interchange, travelling only between Takeishi Interchange and Makuhari Interchange, and also entering the road at Takeshi Interchange and exiting at Hanawa Interchange.

List of interchanges and features

No. Name Connections Dist. from
Dist. from
Notes Lanes Location
Through to Shuto Expressway Komatsugawa Route
1 Shinozaki IC National Route 14 0.0 33.8 Tokyo-bound exit, Chiba-bound entrance only Eight Edogawa Tokyo
<1-1> Keiyō JCT Tokyo Gaikan Expressway Opens in 2015 Ichikawa Chiba
2 Ichikawa IC Pref. Route 6 (Ichikawa Urayasu Route) 4.1 29.7
PA Onitaka PA 4.7 29.1 Closed at March 31, 2012
3 Baraki IC Pref. Route 179 (Funabashi Gyōtoku Route) 6.6 27.2
4 Funabashi IC National Route 14 7.9 25.9 No Tokyo-bound exit Funabashi
TB Funabashi Toll Gate
5 Hanawa IC National Route 296
Pref. Route 15 (Chiba Funabashi Kaihin Route)
11.5 22.3
6 Makuhari IC National Route 14 15.2 18.6
Hanamigawa-ku, Chiba
PA Makuhari PA 16.9 16.9
7 Takeishi IC Pref. Route 57 (Chiba Kamagaya Matsudo Route) 17.8 16.0
(5)/TB Miyanogi JCT/
Chiba-nishi Toll Gate
Higashi-Kantō Expressway 21.3 12.5 No access:
Keiyō southbound → Higashi-Kantō westbound
Higashi-Kantō eastbound → Keiyō northbound
Inage-ku, Chiba
8 Anagawa IC National Route 126 23.7 10.1
8-1 Anagawa-naka IC National Route 16 Soga-bound entrance only
8-2 Anagawa-higashi IC National Route 16 Tokyo-bound exit only Wakaba-ku, Chiba
9 Kaizuka IC National Route 51 27.3 6.5 Soga-bound exit, Tokyo-bound entrance only
TN Kaizuka Tunnel Length - 190 m
10 Chiba-higashi JCT Chiba-Tōgane Road 29.7 4.1 Chūō-ku, Chiba
11 Matsugaoka IC National Route 16
Pref. Route 20 (Chiba Ōami Route)
31.0 2.8
12 Soga IC National Route 16 33.8 0.0 Tateyama-bound exit, Tokyo-bound entrance only
Through to Tateyama Expressway


External links

  • (Japanese) East Nippon Expressway Company

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