Tōmei Expressway Explained

Country:	JPN
Type:	Expressway
Route:	Tōmei
Alternate Name:	東名高速道路
Map Custom:	yes
Map Notes:	Tōmei Expressway in red
Length Km:	346.8
Length Round:	1
Length Ref:	^[1]
Established:	1968^[2] ^[3]
Terminus A:	Tokyo Interchange in Setagaya, Tokyo Shuto Expressway Shibuya Route Tokyo Metropolitan Route 311
Cities:	Kawasaki, Yokohama, Atsugi, Fuji, Shizuoka, Hamamatsu, Toyokawa, Toyota, Nagoya, Kasugai
Terminus B:	Komaki Interchange in Komaki, Aichi Meishin Expressway Nagoya Expressway Komaki Route National Route 41

The is a national expressway on the island of Honshū in Japan. It is operated by Central Nippon Expressway Company. The expressway is designated as E1 under the "2016 Proposal for Realization of Expressway Numbering", because it parallels National Route 1.^[4] It is a part of the Asian Highway Network.

Naming

The word Tōmei is an acronym consisting of two kanji characters. The first character refers to and the second refers to, which are the two major urban areas linked by the expressway.

Officially the expressway is designated as the First Tōkai Expressway.^[5] A second Tōkai Expressway (operating as the Shin-Tōmei Expressway) is under construction parallel to the existing route, and is intended to alleviate congestion problems in the near term.

The expressway is also a part of Route AH1 of the Asian Highway Network.^{[6] [7]}

Overview

The Tōmei Expressway is an important roadway linking Tokyo and Nagoya. It is the most heavily travelled roadway operated by Central Nippon Expressway Company, with some sections used by more than 100,000 vehicles a day.^[8]

The first sections were opened to traffic in 1968 and the entire route was completed in 1969.^[2]

From the origin in western Tokyo the expressway follows a westerly route through Kanagawa Prefecture, paralleling National Route 246 and passing to the north of Yokohama. The route continues west into Shizuoka Prefecture, passing to the south of Mount Fuji and along the coastline of Suruga Bay, paralleling National Route 1 and the historic Tōkaidō highway before reaching the city of Shizuoka. The expressway continues west, passing Lake Hamana in western Shizuoka Prefecture, and crosses into Aichi Prefecture. The expressway then heads northwest, passing to the east of the city of Nagoya and meeting the terminus of the Chūō Expressway before terminating at an interchange in the city of Komaki to the north of Nagoya. Although the Tōmei Expressway ends at this point, the roadway continues as the Meishin Expressway towards Kyoto, Osaka, and Kobe.

List of interchanges and features

• IC - interchange, SIC - smart interchange, JCT - junction, SA - service area, PA - parking area, BS - bus stop, TN - tunnel, TB - toll gate, BR - bridge

No.	Name	Connections	Dist. from Origin	Bus Stop	Notes	Location
Through to Shuto Expressway Shibuya Route
1	Tokyo IC	Met. Route 311 (Kampachi-dori Ave.)	0.0			Setagaya	Tokyo
style="background-color: #BFB;"	-	Tōmei JCT	Tokyo Gaikan Expressway	↓				Planned
BR	Tamagawa Bridge		↓		Tama River crossing
						Tama-ku, Kawasaki	Kanagawa
style="background-color: #BFB;"	-	Shukugawara JCT	Shuto Expressway Kawasaki Route	↓				Planned
TB	Tokyo Toll Gate/ Mukaigaoka Bus Stop		6.7	○		Miyamae-ku, Kawasaki
3	Tōmei-Kawasaki IC		7.6
BS	Eda Bus Stop		10.5	○		Aoba-ku, Yokohama
3-1	Yokohama-Aoba IC	Shuto Expressway Yokohama Northwest Route	13.3
PA	Kōhoku PA		14.2			Midori-ku, Yokohama
4	Yokohama-Machida IC/ Yokohama Bus Stop	National Route 16 (Yamato Bypass) National Route 246 Hodogaya Bypass	19.7	X	Bus Stop closed
BS	Yamato Bus Stop		24.0	○		Yamato
TN	Yamato Tunnel		↓
BS	Ayase Bus Stop		28.8	○		Ayase
style="background-color: #BFB;"	-	Ayase SIC	Pref. Route 42 (Fujisawa Zama Atsugi Route)	33.9				Planned
SA	Ebina SA		31.3			Ebina
4-1	Ebina JCT	Ken-Ō Expressway	33.9
5	Atsugi IC	Odawara-Atsugi Road National Route 129 National Route 246	35.0			Atsugi
BS	Atsugi Bus Stop		36.7	○
5-1	Isehara JCT	Shin-Tōmei Expressway	40.0			Isehara
BS	Isehara Bus Stop		41.7	○
5-2	Hadano-Nakai IC/ Hadano Bus Stop	Pref. Route 71 (Hadano Ninomiya Route) Atsugi-Hadano Road (Planned)	50.1	○		Hadano
PA	Nakai PA		53.6			Nakai
BS	Ōi Bus Stop		57.1	○		Ōi
6	Ōi-Matsuda IC	National Route 246 National Route 255 Pref. Route 78 (Gotenba Ōi Route)	57.9
BS	Matsuda Bus Stop		60.2	○		Matsuda
BS	Yamakita Bus Stop		63.6	○		Yamakita
TN	Azumayama Tunnel		↓
TN	Shintsuburano Tunnel (Komaki-bound) Tsuburano Tunnel (Tokyo-bound)		↓
TN	Torideyama Tunnel		↓		Tokyo-bound only
TN	Tarogao Tunnel		↓
TN	Kitahata Tunnel		↓
PA	Ayuzawa PA		71.9(↓) 72.5(↑)		Komaki-bound: Accessible only to Left Route
TN	Sakuradaira Tunnel		↓		Tokyo-bound only	Oyama	Shizuoka
TN	Takao Tunnel		↓
BS	Oyama Bus Stop		75.5	○	Komaki-bound: Accessible only to Left Route
TN	Shoryo Tunnel		↓		Tokyo-bound only
TN	Shirahata Tunnel		↓
BR	Tomei Ashigara Bridge
BS	Ashigara Bus Stop		79.2	○
SA (6-1)	Ashigara SA/ SIC		80.9
						Gotemba
7	Gotemba IC (No.2)	National Route 138 (Gotemba Bypass)	83.7		Komaki-bound exit, Tokyo-bound entrance only
	Gotemba IC (No.1)/ Gotemba Bus Stop	Pref. Route 401 (Gotemba Hakone Route)		○
7-1	Gotemba JCT	Shin-Tōmei Expressway	88.3		Tokyo-bound only
PA (7-2)	Komakado PA/ SIC		89.9(↓) 90.0(↑)	X	Bus Stop closed
7-3	Susono IC	National Route 246 Pref. Route 82 (Susono Inter Route)	93.8			Susono
BS	Susono Bus Stop		95.5	○
8	Numazu IC	Pref. Route 83 (Numazu Inter Route) Izu-Jūkan Expressway	103.3	○		Numazu
PA (8-1)	Ashitaka PA/ SIC		105.9	○
BS	Hara Bus Stop		↓	X	Closed
BS	Nakazato Bus Stop		115.7	○		Fuji
9	Fuji IC	Nishi-Fuji Road National Route 139 Pref. Route 353 (Tagonourakō Fuji Inter Route) Shin-Tōmei Expressway	121.5	○
BS	Matsuoka Bus Stop		125.0	○
SA (9-1)	Fujikawa SA/ SIC	Pref. Route 10 (Fujikawa Minobu Route)	127.5	○
TN	Kambara Tunnel		↓		Length - 714 m	Shimizu-ku, Shizuoka
BS	Kambara Bus Stop		133.1	○
PA	Yui PA		138.6(↓) 139.7(↑)
TN	Satta Tunnel		↓
BS	Okitsu Bus Stop		142.5	○
TN	Okitsu Tunnel		↓
TN	Seikenji Tunnel		↓
TN	Sodeshi Tunnel		↓
9-2	Shimizu JCT	Shin-Tōmei Expressway	146.4
10	Shimizu IC	National Route 1 (Seishin Bypass)	147.8	○
PA	Nihondaira PA		155.8	○		Suruga-ku, Shizuoka
10-1	Nihondaira-Kunōzan SIC		158.8
11	Shizuoka IC	Pref. Route 84 (Nakajima Minamiabe Route)	161.8	○
TN	Nihonzaka Tunnel		↓		Tokyo-bound Left Route - 2,378 m Tokyo-bound Right Route - 2,371 m Komaki-bound - 2,555 m
						Yaizu
PA	Nihonzaka PA		171.5(↓) 171.6(↑)
12	Yaizu IC	Pref. Route 81 (Yaizu Mori Route)	173.6
BS	Yaizu-nishi Bus Stop		176.1	○
12-1	Ōigawa-Yaizu-Fujieda SIC		181.0
BS	Ōigawa Bus Stop		181.0	○
13	Yoshida IC	Pref. Route 34 (Shimada Yoshida Route)	185.6	○		Yoshida
SA	Makinohara SA/ Bus Stop		194.5	○		Makinohara
13-1	Sagara-Makinohara IC	National Route 473	197.0
14	Kikugawa IC	Pref. Route 79 (Yoshida Daitō Route)	201.8	○		Kikugawa
14-1	Kakegawa IC		207.8	○		Kakegawa
PA	Ogasa PA		209.7
BS	Okatsu Bus Stop		212.9	○
15	Fukuroi IC	Pref. Route 61 (Hamakita Fukuroi Route)	219.4	○		Fukuroi
15-1	Iwata IC	Pref. Route 86 (Iwata Inter Route) Pref. Route 283 (Yokokawa Iwata Route)	223.3		Former site of Iwatahara PA	Iwata
PA (15-2)	Enshū-Toyoda PA/ SIC		225.2
BS	Iwata Bus Stop		226.2	○
16	Hamamatsu IC	Pref. Route 65 (Hamamatsu Kanjō Route)	230.0			Chūō-ku, Hamamatsu
BS	Hamamatsu-kita Bus Stop		233.5	○
PA (16-1)	Mikatagahara PA/ SIC		234.9
16-2	Hamamatsu-nishi IC	Pref. Route 65 (Hamamatsu Kanjō Route)	240.5
16-3	Kanzanji SIC	Pref. Route 320 (Inasa Kanzanji Route) Pref. Route 368 (Kotō kanzanji Route)	244.7
BS	Kanzanji Bus Stop		244.7	○
BR	Hamanako Bridge		↓		Length - 603 m
						Hamana-ku, Hamamatsu
SA	Hamanako SA		247.9	○
17	Mikkabi IC	Pref. Route 85 (Mikkabi Inter Route) Pref. Route 308 (Hōrai Mikkabi Route)	251.1
TN	Mikkabi Tunnel		↓
BS	Mikkabi Bus Stop		255.0	○
17-1	Mikkabi JCT	Shin-Tōmei Expressway	255.8
TN	Uri Tunnel		↓
						Shinshiro	Aichi
PA	Shinshiro PA		261.1
BS	Toyohashi-kita Bus Stop		262.3	○		Toyohashi
PA	Toyohashi PA
18	Toyokawa IC	National Route 151	269.0	○		Toyokawa
PA	Akatsuka PA		274.0
BS	Otowa Bus Stop		279.1	○
18-1	Otowa-Gamagōri IC	National Route 1 Otowa-Gamagōri Toll Road	280.2
BS	Motojuku Bus Stop		285.4	○		Okazaki
PA	Miai PA		289.7
19	Okazaki IC	National Route 1 Pref. Route 26 (Okazaki Kanjō Route)	293.4	○
style="background-color: #BFB;"	-	Okazaki-Achiwa SIC						Planned
BS	Iwazu Bus Stop		301.5	○
19-2	Toyota JCT	Isewangan Expressway	304.1			Toyota
SA (19-3)	Toyota-Kamigō SA/ SIC	Pref. Route 76 (Toyota Anjō Route)	305.8	○
20	Toyota IC	National Route 155 (Toyota-minami Bypass) Pref. Route 76 (Toyota Anjō Route)	310.8	○
20-1	Tōmei-Miyoshi IC/ Miyoshi Bus Stop	Pref. Route 54 (Toyota Chiryū Route)	315.8	○		Miyoshi
PA	Tōgō PA		318.1			Nisshin
BS	Nisshin Bus Stop		319.3	○
20-2	Nisshin JCT	Nagoya-Seto Road	322.3
21	Nagoya IC	Mei-Nikan Expressway Pref. Route 60 (Nagoya Nagakute Route)	325.5			Meitō-ku, Nagoya
BS	Asahi Bus Stop		329.5	X	Closed	Owariasahi
PA (21-1)	Moriyama PA/ SIC		333.7			Moriyama-ku, Nagoya
22	Kasugai IC	National Route 19	337.7	X	Bus Stop closed	Kasugai
23	Komaki JCT	Chūō Expressway	339.9			Komaki
24	Komaki IC	Nagoya Expressway Komaki Route (via Komaki-kita Interchange) National Route 41	346.8
Through to Meishin Expressway Lanes Section Tokyo-bound Lanes Komaki-bound Lanes Shuto Expressway - Tokyo IC Two Tokyo IC - Ayase BS Three Ayase BS - Ebina JCT Four Three Ebina JCT - Ōi-Matsuda IC Three Ōi-Matsuda IC - Ashigara BS Three Two (Left Route) + Two (Right Route) Ashigara BS - Komakado PA Three Komakado PA - Shizuoka IC Two Shizuoka IC - Nihonzaka Tunnel Three Two Nihonzaka Tunnel Two (Left Route) + Two (Right Route) Three Nihonzaka Tunnel - Nihonzaka PA Three Nihonzaka PA - Yaizu IC Two Three Yaizu IC - Komaki IC Two Sections with left and right routes formerly carried 2 lanes of traffic in each direction. An additional roadway (carrying 3 lanes of traffic in one direction only) has been constructed parallel to the existing 4 lanes to alleviate congestion. The original 4 lanes are then converted for the use of traffic in the opposite direction. See also Shin-Tōmei Expressway Asian Highway Network Central Nippon Expressway Company Expressways of Japan External links Central Nippon Expressway Company

Notes and References

1. Web site: Road Timetable . Ministry of Land, Infrastructure and Transport . 2008-05-20 . https://web.archive.org/web/20080610033238/http://www.ktr.mlit.go.jp/kyoku/road/jikoku/station/toumei.html . 2008-06-10 . dead .
2. Web site: History of Tokyo's 3 Ring Roads . Ministry of Land, Infrastructure and Transport . 2008-04-17 . dead . https://web.archive.org/web/20080402092029/http://www.ktr.mlit.go.jp/3kanjo/history/index.htm . 2008-04-02 .
3. Web site: Construction History of Japan . Japan Civil Engineering Contractors' Association . 2008-05-20 . dead . https://web.archive.org/web/20090210005413/http://dokokyo.or.jp/data/nenpyo/1968.htm . 2009-02-10 .
4. Web site: Japan's Expressway Numbering System. www.mlit.go.jp . 27 June 2019.
5. Web site: High Standard Trunk Road Map . Ministry of Land, Infrastructure and Transport . 2008-04-13 . dead . https://web.archive.org/web/20110927111136/http://www.mlit.go.jp/road/ir/ir-yosan/h20/s07.pdf . 2011-09-27 .
6. Economic and Social Commission for Asia and the Pacific, 2003 Asian Highway Handbook, 2003, page 54 shows an aerial photo of the Yokohama Aoba Interchange, placing AH1 clearly on the Tomei Expressway rather than the other Tokyo-Nagoya expressway, the Chūō Expressway.
7. Web site: Sectional AH Data for Japan . UNESCAP Asian Highway Network Project . 2008-05-20 . excel . dead . https://web.archive.org/web/20050512144044/http://unescap.org/ttdw/common/TIS/AH/files/japanhp.xls . 2005-05-12 .
8. Web site: C-NEXCO Business Outline . 2008-05-20 .