Tohoku Expressway In-bound Line Yaita Interchange merge lane extends
～To alleviate traffic congestion～
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- Press Release Kanto Regional Head Office
- Tohoku Expressway In-bound Line Yaita Interchange merge lane extends
June 24, 2010
East Nippon Expressway Co., Ltd.
Kanto Regional Head Office
NEXCO EAST Kanto Regional Head Office (Taito-ku, Tokyo) has been working to extend the confluence lane of the IC to reduce traffic congestion near the Yaita Interchange (IC) on the Tohoku Expressway In-bound line. We will inform you that the service will start on Friday, 16th of March.
1 Service start date and time
Friday, July 16, 2010, 15:00 *
- Depending on the weather conditions of the day, the start time of operation may be changed.
2 Business overview
Tohoku Expressway In-bound The vicinity of the Yaita IC on the line is one of the points where heavy traffic congestion occurs during heavy traffic such as summer congestion and large holidays. In addition, recently there is a traffic jam on weekends. This is mainly due to the slowdown caused by In-bound hill, the influence of cars merging from the IC, and the slowdown due to the increase of lane changes to the right to avoid it.
For this reason, we will extend the confluence lanes for the In-bound lines with the aim of smooth merging and alleviating traffic congestion by reducing lane changes.
3 Location map
4 Causes of traffic congestion near the Yaita IC and remedial measures
In-bound sheet pile near the IC of the line In-bound for the slope (gradient 3%), speed in unnoticed is it will be reduced. In addition, due to the influence of cars merging from the IC and the influence of cars changing lanes to the right (overtaking lane) to avoid it, the speed will further decrease, causing a large amount of traffic congestion during periods of heavy traffic. Has become.
To alleviate this congestion, In-bound the merging lane sheet pile IC of line, from the current approximately 200m In-bound is intended to extend to about 1.9km beyond the top of the hill.
This will result in smooth merging using long merging lanes, reduce lane changes to the right (overtaking lane) to avoid merging cars, reduce speed reduction, and alleviate traffic congestion.
In addition, in order to enhance the effect of alleviating traffic congestion by extending the merging lanes, customers using the IC can “use long merging lanes” and customers who are driving on the main line (passing the Yaita IC) can “use as many lanes as possible”. Information signs will also be installed for "use".
[To alleviate traffic congestion]
- Customers using the In-bound line (toward Tokyo) from Yaita IC
･･･Please make sure to use the long merge lanes and cooperate with the smooth merge.
- Customers traveling on the main line (In-bound) (passing the Yaita IC)
･･･The merge from IC becomes smoother than before stretching. When crowded, avoid inadvertent lane changes to the right (overtaking lane), and cooperate in using the driving lane from the front of the IC to the end of the merged lane as much as possible.
5 Effect of improvement after countermeasures
Due to the change in traffic flow due to the relief of traffic congestion near the Yaita IC on the In-bound line, traffic congestion near the Kamikochi Service Area (SA), which is a traffic congestion point ahead of it, will increase slightly from the present, but Nishinasuno Shiobara IC-Utsunomiya It is expected that the traffic congestion transit time* between ICs will be shortened.
- The sum of the transit time of the traffic congestion that mainly starts near the Yaita IC and the transit time of the traffic congestion that starts near the Kamikawachi SA
6 About public relations
- We will post posters and leaflets in the service area and parking area.
- Post banners on overpass bridges on Expressway.