[E17] Near the Takasaki Service Area Kan-Etsu Expressway
Partial operation of additional lanes will begin on Friday, March 28, 2025.
- Corporate Top
- Press Room
- Press Release Kanto Regional Head Office
- [E17] Kan-Etsu Expressway.
March 19, 2025
East Nippon Expressway Co., Ltd.
Saitama Construction Office
Tokorozawa Management Office
NEXCO EAST Saitama Construction Office (Saitama City, Saitama Prefecture) and Tokorozawa Management Office (Tokorozawa City, Saitama Prefecture) have been carrying out construction work to alleviate congestion near the Takasaka Service Area (hereinafter, "SA") on the E17 Kan-Etsu Expressway (hereinafter, "Kan-Etsu Expressway"), and are now pleased to announce that they will begin operating an additional lane on Friday, March 28, 2025.
1. 1. Operation start section / date and time
| section | Date and time | |
|---|---|---|
| E17Kan-Etsu Expressway | Sakado Nishi Smart IC ⇒ Higashimatsuyama IC (Out-bound) |
Friday, March 28, 2025, around 6:00 a.m. |
| Higashimatsuyama IC ⇒ Sakadonishi Smart IC (In-bound line) |
Friday, March 28, 2025, around 2 p.m. | |
- The start date and time of operation may be changed depending on weather conditions, etc.
2. Location map
3. 3. Congestion measures business outline
On Kan-Etsu Expressway, congestion occurs during peak traffic periods such as the summer rush hour, consecutive holidays, and the tourist and ski season. The main cause of congestion is the slowdown in vehicle speeds at the points where the main road changes from a Out-bound slope to an In-bound slope (sag sections).
By constructing an additional lane near Takasaki SA, it is expected that congestion will be alleviated.
Mechanism of traffic congestion
Mechanism of congestion at sag sections
Countermeasures against congestion (installation of additional lanes)
The installation of additional lanes is expected to ease congestion.
Additional lane installation status (In-bound near Takasaki SA)
Four. Location map of traffic congestion countermeasure business
Five. Operation start image
Current
Completion: Now in operation
NEXCO EAST Group has positioned the period from 2021 to 2025 as a period for contributing to the achievement of the SDGs and transforming toward a new future society, and is undertaking a variety of initiatives.
With regard to the current initiative to "start operation of additional lanes near Takasaki SA on Kan-Etsu Expressway" we believe that by developing and strengthening the Expressway network, this business activity will lead to revitalizing the local economy and supporting local medical care, and will contribute to SDGs goals 3, 8, 9, and 11.
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