Cause of traffic jam
In about 70% of traffic intensive congestion, of which In-bound slope and sag part ※ is about 61%, interchange confluence portion was about 10%. Toll booth congestion has been almost eliminated by the spread of ETC. (2017)
※ Out-bound from the hill In-bound is called a recess approaches the slope and sag section. For more information about the congestion occurrence mechanism and the congestion measures,Here
Implementation of Congestion Elimination / Mitigation Measures
Due to various measures, traffic congestion loss time * decreased to about 50% of peak time in 2008, but it increased dramatically since 2009 when holiday special discount was started. 2011 decreased due to the holiday special discount (upper limit of 1,000 yen in rural area), but it increased again due to earthquake restoration work and the increase in traffic volume after that. Because traffic jam loss time is decreasing from 2013, as the situation is still high, we analyze the cause of traffic congestion continuously to suppress the loss of valuable time of customers and promote traffic congestion countermeasures .
※ Indicator of the effect of congestion on the number of units · time
1 Measures for traffic congestion
We add lanes, install climbing lanes and improve lamps where traffic congestion is becoming apparent.
Compared to the start of ETC full-scale introduction, the toll gate congestion was almost canceled.
Sag part ( Out-bound from the hill In-bound portion of the change in slope) and In-bound in order to solve the congestion by the speed drop in the hill, the call for speed recovery, we are near the beginning of the congestion.
To avoid traffic jams and provide a comfortable drive, we provide traffic prediction information on the Internet etc.
Mobile phone (http://m.drivetraffic.jp/)
Congestion forecast guide (provided during the traffic congestion period)
2 Measures against accident congestion
事故そのものを減らすための交通安全対策も推進しています。Acceleration time reduction
3 Measures for construction congestion
過去の交通量や渋滞実績を基に、渋滞が起こりにくい時間帯・曜日を厳選して工事を実施しています。Reduction of construction number
新しい工法の導入やメンテナンスフリー化により工事回数の削減に努めています。Proper information provision