On August 21, NEXCO EAST (Chiyoda-ku, Tokyo, Chairman: Shigejiro Yagi) announced "Traffic conditions on the Expressway during the Obon season (flash report)", but during the period (August 9 ( We summarized the results of a detailed examination of measures to alleviate traffic congestion from Wednesday) to August 20 (Sunday) for 12 days.

1 Alleviate traffic congestion by providing speed recovery information in the sag section, etc.

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In-bound hill or sag part ^*1 In, In-bound there is the travel speed is reduced unconsciously when approaching the hill, congestion occurs. To alleviate such traffic congestion, especially in areas where a large traffic congestion is expected, Signs with excellent visibility (LED ^*2 "Providing speed recovery information" using signs The we.

This time around Tohoku Expressway and Kan-Etsu Expressway Measures have been Large to 11 locations, and traffic congestion has decreased by about 10% in all the countermeasure areas Did. Especially near the Tohoku Expressway Out-bound Hanyu Parking Area (PA) and near the Kan-Etsu Expressway In-bound Hanazono Interchange (IC), The daily traffic volume was almost the same or increased compared to the day when no measures were taken, but the day when traffic congestion decreased significantly had.

"Providing speed recovery information using LED signs" will alleviate traffic congestion at a low cost, so we will continue to implement it in the future.

2 Congestion mitigation effect by providing congestion prediction information

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NEXCO EAST provides congestion prediction information for Expressway nationwide through the "Traffic Congestion Prediction Guide" and the Expressway information site "DoraNavi" to help customers avoid traffic congestion and drive comfortably. .. "DoraNavi" will be used in July and August for a total of 10 million cases (nationwide) had.
(About 1.8 times the previous year)

Homecoming or returning from a tourist destination In-bound line, traffic was dispersed from Monday, August 14th to Thursday, August 17th, so both the number of traffic jams and the amount of traffic jam decreased by about 20% from the previous year. Did.

The dispersion of this traffic jam is "the peak of the In-bound line is August 14 (Sun) and 15 (Tue)" A customer who viewed the congestion prediction information avoided the traffic jam and used the Expressway This is also a factor.

We will continue to promote traffic congestion countermeasures and provide detailed traffic congestion forecast information promptly. Please continue to use it for your travel planning.

3 Reduced traffic congestion near Joban Expressway In-bound Misato Junction (JCT)

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Joban Expressway In-bound Misato in the vicinity of JCT, Joban Expressway from Gaikan Expressway towards the Misato such as by improving the JCT of lamp (2005 November 27 completed) the effect, Daily traffic increased from last year, but traffic congestion decreased significantly Did.

4 Congestion alleviation effect associated with the use of the ETC time zone discount system

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Within our area during the period The ETC usage rate was 52% (about 1235,000 units/day), which is about 1.4 times that of the same period last year (38% [nationwide ETC usage rate]). became.

An analysis of changes in traffic volume and the occurrence of traffic congestion at locations where traffic congestion of 30 km or more occurred in the past revealed that nighttime traffic was higher than before the introduction of the ETC-only discount system on Expressway (2004). Changes in traffic volume were observed in some time zones, such as an increase in traffic volume. In addition, Kan-Etsu Expressway In-bound in some, synchronization and day traffic volume of the previous year despite the almost the same degree, congestion due to a change in traffic volume There was a day that was reduced. It is considered that the introduction of the ETC time zone discount system has contributed to one of the factors to alleviate traffic congestion.

This congestion alleviation is carried out with relatively low congestion time by using various time zone discounts such as "ETC Midnight Discount" and "ETC Early Morning Night Discount" implemented in the suburbs of Tokyo as the ETC usage rate improves. It can be inferred that there were many customers who drove on the obi. The ETC time zone discount allows you to drive comfortably without getting caught in traffic jams, It also helps alleviate traffic congestion Please use it effectively in the future.

In addition, when going Out-bound Tohoku Expressway, a traffic jam of up to 113km occurred on Saturday, August 12, which caused inconvenience to our customers. On the day, it was the peak of homecoming of Obon, and I was informed of the traffic congestion prediction information in advance, but because there were many accidents and broken cars in the traffic jam, the prediction (60 km in all three sections in total) The traffic has exceeded.

NEXCO EAST will continue to study and analyze the causes of traffic congestion and implement efficient and effective traffic congestion countermeasures so that customers can use the Expressway comfortably and reliably.