[E17] Near the Takasaki Service Area Kan-Etsu Expressway
Additional lanes will be partially operational in late March 2025
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- [E17] Kan-Etsu Expressway will be partially operational near the Takasaka Service Area on the Kan'etsu Expressway in late March 2025
February 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 an additional lane will begin operation in late March 2025.
1. Sections and time of start of operation
| section | season |
|---|---|
| E17 Kan-Etsu Kan-Etsu Expressway (both inbound and outbound lanes) Sakadonishi Smart IC ⇔ Higashimatsuyama IC |
Late March 2025 |
- The start date of operation may change depending on weather conditions, etc.
- The start date and time of operation will be announced at a later date.
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.
Example of additional lane installation status (near Arashiyama PA)
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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