{{Short description|Road in Japan}} {{Infobox road |country=JPN |name= Keiyō Road |alternate_name=48px|link=|alt=E14 京葉道路 |marker_image= 100px 100px |map = |length_km=36.7 |length_ref=<ref name="info" /> |established= 1960<ref>{{cite web | url= http://www.ktr.mlit.go.jp/3kanjo/history/index.htm | title= History of Tokyo's 3 Ring Roads | author= Ministry of Land, Infrastructure and Transport | accessdate= 2008-04-17 | url-status= dead | archiveurl= https://web.archive.org/web/20080402092029/http://www.ktr.mlit.go.jp/3kanjo/history/index.htm | archivedate= 2008-04-02 }}</ref> |terminus_a= Shinozaki Interchange in Edogawa, Tokyo<br />20px Shuto Expressway Komatsugawa Route<br />20px National Route 14 |cities= Ichikawa, Funabashi, Narashino |terminus_b= Soga Interchange in Chūō-ku, Chiba<br />25px Tateyama Expressway<br />20px National Route 16 }} The {{nihongo|'''Keiyō Road'''|京葉道路|Keiyō Dōro}} is a limited access Tokyo-Chiba toll road in Japan. It is owned and operated by East Nippon Expressway Company.

== Naming == Keiyō is a kanji acronym of two characters, each representing the two major urban areas connected by the route. The first character represents {{nihongo|Tokyo|東'''京'''}} and the second represents {{nihongo|Chiba|千'''葉'''}}

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 {{nihongo|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 {{nihongo|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.<ref>{{cite web|url=http://www.mlit.go.jp/road/ir/ir-yosan/h20/s07.pdf |title=High Standard Trunk Road Map |author=Ministry of Land, Infrastructure and Transport |accessdate=2008-04-13 |url-status=dead |archiveurl=https://web.archive.org/web/20110920095900/http://www.mlit.go.jp/road/ir/ir-yosan/h20/s07.pdf |archivedate=2011-09-20 }}</ref>

== Overview == The road is an important artery in the eastern part of the Tokyo urban area, carrying an average of 315,236 vehicles per day.<ref name="info">{{cite web|url=http://www.e-nexco.co.jp/more_expressway/data/ |title=E-NEXCO Expressway Data |accessdate=2008-04-13 |url-status=dead |archiveurl=https://web.archive.org/web/20071213220411/http://www.e-nexco.co.jp/more_expressway/data/ |archivedate=2007-12-13 }}</ref>

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&nbsp;km/h on the section designated as Route 14, and 80&nbsp;km/h on the section designated as Route 16.

== Tolls == thumb|right|Shinozaki Interchange (bound for Tokyo) For the purposes of toll assessment, the road is divided into six 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.<ref>{{cite web| url= http://www.driveplaza.com/dp/SearchTop#search_map | title= E-NEXCO Drive Plaza Route Search | accessdate= 2008-05-16 }}</ref>

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== * IC - interchange, JCT - junction, PA - parking area, TN - tunnel, TB - toll gate

{| class="wikitable" |- !style="border-bottom: 3px solid green;"|No. !style="border-bottom: 3px solid green;"|Name !style="border-bottom: 3px solid green;"|Connections !style="border-bottom: 3px solid green;"|Dist. from<br />Origin !style="border-bottom: 3px solid green;"|Dist. from<br />Terminus !style="border-bottom: 3px solid green;"|Notes !style="border-bottom: 3px solid green;"|Lanes !style="border-bottom: 3px solid green;" colspan="2"|Location |- !colspan="9" style="text-align: center;"|'''Through to 20px Shuto Expressway Komatsugawa Route''' |- !style="background-color: #BFB;"|1 |Shinozaki IC |20px National Route 14 |style="text-align: center;"|0.0 |style="text-align: center;"|33.8 |Tokyo-bound exit, Chiba-bound entrance only |rowspan="3" style="text-align: center;"|Eight |Edogawa |rowspan="1" style="width:1em;"|Tokyo |- !style="background-color: #BFB;"|<1-1> |style="background-color:#CCC;"|Keiyō JCT |style="background-color:#CCC;"|20px|link=|alt= Tokyo Gaikan Expressway |style="text-align: center; background-color:#CCC;"|↓ |style="text-align: center; background-color:#CCC;"|↑ |style="background-color:#CCC;"|Opens in 2015 |rowspan="5"|Ichikawa |rowspan="25" style="width:1em;"|Chiba |- !rowspan="2" style="background-color: #BFB;"|2 |rowspan="2"|Ichikawa IC |rowspan="2"|Pref. Route 6 (Ichikawa Urayasu Route) |rowspan="2" style="text-align: center;"|4.1 |rowspan="2" style="text-align: center;"|29.7 |rowspan="2"| |- |rowspan="4" style="text-align: center;"|Six |- !style="background-color: #BFB;"|PA |style="background-color:#CCC;"|Onitaka PA |style="background-color:#CCC;"| |style="text-align: center; background-color:#CCC;"|4.7 |style="text-align: center; background-color:#CCC;"|29.1 |style="background-color:#CCC;"|Closed at March 31, 2012 |- !style="background-color: #BFB;"|3 |Baraki IC |Pref. Route 179 (Funabashi Gyōtoku Route) |style="text-align: center;"|6.6 |style="text-align: center;"|27.2 | |- !rowspan="2" style="background-color: #BFB;"|4 |rowspan="2"|Funabashi IC |rowspan="2"|20px National Route 14 |rowspan="2" style="text-align: center;"|7.9 |rowspan="2" style="text-align: center;"|25.9 |rowspan="2"|No Tokyo-bound exit |rowspan="4"|Funabashi |- |rowspan="9" style="text-align: center;"|Four |- !style="background-color: #BFB;"|TB |Funabashi Toll Gate | |style="text-align: center;"|↓ |style="text-align: center;"|↑ | |- !rowspan="2" style="background-color: #BFB;"|5 |rowspan="2" |Hanawa IC |rowspan="2" |20px National Route 296<br />Pref. Route 15 (Chiba Funabashi Kaihin Route) |rowspan="2" style="text-align: center;"|11.5 |rowspan="2" style="text-align: center;"|22.3 |rowspan="2" | |- |rowspan="2"|Narashino |- !rowspan="2" style="background-color: #BFB;"|6 |rowspan="2" |Makuhari IC |rowspan="2" |20px National Route 14 |rowspan="2" style="text-align: center;"|15.2 |rowspan="2" style="text-align: center;"|18.6 |rowspan="2" | |- |rowspan="3"|Hanamigawa-ku, Chiba |- !style="background-color: #BFB;"|PA |Makuhari PA | |style="text-align: center;"|16.9 |style="text-align: center;"|16.9 | |- !style="background-color: #BFB;"|7 |Takeishi IC |Pref. Route 57 (Chiba Kamagaya Matsudo Route) |style="text-align: center;"|17.8 |style="text-align: center;"|16.0 | |- !rowspan="2" style="background-color: #BFB;"|(5)/TB |rowspan="2"|Miyanogi JCT/<br>Chiba-nishi Toll Gate |rowspan="2"|25px|link=|alt=E51 Higashi-Kantō Expressway |rowspan="2" style="text-align: center;"|21.3 |rowspan="2" style="text-align: center;"|12.5 |rowspan="2"|No access:<br />Keiyō southbound → Higashi-Kantō westbound<br/>Higashi-Kantō eastbound → Keiyō northbound |rowspan="5"|Inage-ku, Chiba |- |rowspan="2" style="text-align: center;"|Six |- !rowspan="2" style="background-color: #BFB;"|8 |rowspan="2"|Anagawa IC |rowspan="2"|20px National Route 16<br />20px National Route 126 |rowspan="2" style="text-align: center;"|23.7 |rowspan="2" style="text-align: center;"|10.1 |rowspan="2"| |- |rowspan="8" style="text-align: center;"|Four |- !style="background-color: #BFB;"|8-1 |Anagawa-naka IC |20px National Route 16 |style="text-align: center;"|↓ |style="text-align: center;"|↑ |Soga-bound entrance only |- !style="background-color: #BFB;"|8-2 |Anagawa-higashi IC |20px National Route 16 |style="text-align: center;"|↓ |style="text-align: center;"|↑ |Tokyo-bound exit only |rowspan="3"|Wakaba-ku, Chiba |- !style="background-color: #BFB;"|9 |Kaizuka IC |20px National Route 16<br />20px National Route 51 |style="text-align: center;"|27.3 |style="text-align: center;"|6.5 |Soga-bound exit, Tokyo-bound entrance only |- !style="background-color: #BFB;"|TN |Kaizuka Tunnel | |style="text-align: center;"|↓ |style="text-align: center;"|↑ |Length - 190 m |- !style="background-color: #BFB;"|10 |Chiba-higashi JCT |20px25px|link=|alt= Chiba-Tōgane Road |style="text-align: center;"|29.7 |style="text-align: center;"|4.1 | |rowspan="3"|Chūō-ku, Chiba |- !style="background-color: #BFB;"|11 |Matsugaoka IC |20px National Route 16<br />Pref. Route 20 (Chiba Ōami Route) |style="text-align: center;"|31.0 |style="text-align: center;"|2.8 | |- !style="background-color: #BFB;"|12 |Soga IC |20px National Route 16 |style="text-align: center;"|33.8 |style="text-align: center;"|0.0 |Tateyama-bound exit, Tokyo-bound entrance only |- !colspan="9" style="text-align: center;"|'''Through to 25px Tateyama Expressway''' |}

== References == {{Reflist}}

== External links == * {{in lang|ja}} [http://www.e-nexco.co.jp/ East Nippon Expressway Company]

{{East Nippon Expressway Company}}

{{coord missing|Japan}}

{{DEFAULTSORT:Keiyo Road}} Category:Toll roads in Japan Category:Roads in Chiba Prefecture Category:Roads in Tokyo Category:1960 establishments in Japan