The Aomori Expressway (青森自動車道, Aomori Jidōsha-dō) is a two-lane national expressway spur route in Aomori, Aomori Prefecture, Japan. It is owned and operated by East Nippon Expressway Company and is signed E4A as a direct extension and spur route of the Tōhoku Expressway.[3]

Aomori Expressway sign
Aomori Expressway
E4A 青森自動車道
Map
Route information
Length15.95 km[2] (9.91 mi)
Existed2003[1]–present
Major junctions
FromAomori Interchange in Aomori, Aomori
Tōhoku Expressway
ToAomori-higashi Interchange in Aomori, Aomori
Michinoku Toll Road
Aomori Prefectural Route 47
Aomori Prefectural Route 123
Location
CountryJapan
Highway system

Route description

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Aomori IC near the north end of the Tōhoku Expressway and the western terminus of the Aomori Expressway.
 
The Inayama Tunnel west of Aomori-higashi IC.

The expressway is officially referred to as the Tōhoku Jūkan Expressway Hachinohe Route.[4]

The expressway serves as an extension to the Tōhoku Expressway (which terminates at Aomori Interchange) and runs through southern areas of the city of Aomori.[5] From Aomori Interchange, it runs east, crossing under the tracks of the Tōhoku Shinkansen. Soon after the expressway meets the Aomori Belt Highway, a bypass of National Route 7, which serves for several kilometers from here as a frontage road to the expressway. Eventually, the two roads have are linked by the Aomori-chūō Interchange where tolls are collected for the entire expressway, including any tolls accrued from traveling from the Tōhoku Expressway. The expressway continues east and splits from National Route 7 before it comes to its end at Aomori-higashi Interchange near the western terminus of the Michinoku Toll Road.

The speed limit is 70 km/h for the entire route.

History

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Construction on Aomori Expressway began in 1999 and it was opened to traffic on 28 September 2003. The completion of the expressway reduced travel times from the Tōhoku Expressway to Central Aomori by 11 minutes and reduced congestion along the Aomori West Bypass.[6]

Future

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Though the Aomori Expressway terminates at Aomori-higashi Interchange, it is planned to eventually connect with the northern terminus of the Hachinohe Expressway in the town of Oirase via a series of toll roads.

Junction list

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The entire expressway is in Aomori Prefecture. The expressway is a direct extension of the Tōhoku Expressway. Therefore, the distance and exit numbers continue from the sequence of the Tōhoku Expressway, starting at 677.26 kilometers (420.83 mi).

LocationkmmiExitNameDestinationsNotes
Through to   Tōhoku Expressway
Aomori677.26420.8354Aomori  Tōhoku ExpresswayMorioka, TokyoAccess only from northbound E4 and to southbound E4.
683.50424.7155/TBAomori-chūō  National Route 7 (Aomori Belt Highway)Tolls are collected here for both Aomori-higashi IC and Aomori-chūō IC
688.31427.70Emergency Exit  National Route 7 (Aomori Belt Highway)Access for Aomori Chūō Hospital
Authorized vehicles only
693.21430.7456Aomori-higashiPref. Route 47 (Aomori-higashi Inter Route)
Pref. Route 123 (Shimizugawa Takizawanonai Route)
At-grade junction
E4A is to the right
Through to   Michinoku Toll Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

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References

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  1. ^ Tohoku Regional Bureau, Ministry of Land, Infrastructure and Transport. "Status of Aomori Expressway after Opening". Archived from the original on 24 January 2005. Retrieved 15 April 2008.
  2. ^ "E-NEXCO Expressway Data". Archived from the original on 13 December 2007. Retrieved 13 April 2008.
  3. ^ "Japan's Expressway Numbering System". www.mlit.go.jp.
  4. ^ Ministry of Land; Infrastructure and Transport. "High Standard Trunk Road Map" (PDF). Archived from the original (PDF) on 20 September 2011. Retrieved 13 April 2008.
  5. ^ "Routes covered by the Expressway Numbering System". www.mlit.go.jp.
  6. ^ 事後評価結果(平成20年度) (in Japanese)
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