Traffic congestion forecast for Expressway during Golden Week [Tokyo metropolitan area edition]

Be aware of potential traffic congestion on both the northbound and southbound lanes during the latter half of the five-day holiday period!
We predict traffic jams of up to 45km! Please use the traffic forecast as a reference and cooperate by staggering your travel.

Corporate Top
Press Room
Press Release Kanto Regional Head Office
Traffic congestion forecast for Expressway during Golden Week [Tokyo metropolitan area edition]

Return to search results for press releases (Kanto Regional Head Office

post
share

The latest regulatory information isDraTraPlease see.

March 25, 2020
East Nippon Expressway Co., Ltd., Kanto Regional Head Office
Central Nippon Expressway Company Limited, Tokyo Regional Head Office

East Nippon Expressway Co., Ltd. (NEXCO EAST) Kanto Regional Head Office and Central Nippon Expressway Company Limited (NEXCO CENTRAL) Tokyo Regional Head Office are announcing predicted traffic congestion of 10km or more on Expressway in the Kanto-Koshinetsu region and Shizuoka Prefecture during the Golden Week period [12 days from Saturday, April 25th to Wednesday, May 6th, 2026]. We ask for your cooperation in avoiding congestion by using the traffic congestion forecast and distributing your travel accordingly.
Traffic congestion forecasts are based on past congestion data and recent traffic conditions, but actual congestion may differ due to accidents, other traffic disruptions, weather conditions, etc. Please check the latest traffic information before departure. Please note that holiday discounts do not apply during the Golden Week period.

1. 1. Congestion forecast

◆Overview of traffic congestion prediction

This year's holiday schedule will consist of a series of consecutive holidays in the first half followed by a five-day holiday in the second half, so heavy traffic is expected on both the northbound and southbound lanes during the latter five-day holiday.
We predict that the peak of traffic congestion will be on Saturday, May 2nd for Out-bound traffic and on Tuesday, May 5th for In-bound traffic.
Last year, the latter half of the holiday period was a four-day weekend, but this year it's a five-day weekend, so traffic jams of 10km or more are expected to increase in both directions.

(1) Prediction of traffic congestion over 10km (number of times per day)

Image of Out-bound congestion forecast of 10km or more (number of times per day)

Image of traffic congestion forecast for distances over 10km (number of times per day) heading in In-bound direction

(2) Prediction of particularly long traffic jams (over 30 km)

For a more detailed list of traffic congestion forecasts, please see Appendix-1 [PDF: 359KB].

Image of prediction for particularly long traffic jams (over 30km) — <The largest values in each direction are written in bold.>

(3) Comparison with last year (number of traffic jams)

The following is a comparison of the number of traffic jams in 2025 (last year). Please note that the 2025 figures include traffic jams caused by accidents and other factors.

■Comparison with 2025

The unit of the numerical value in the table is "times"

Traffic jam scale	①Forecast for 2020 ^*1			② Results for 2025 ^*2			Difference (①-②)
Traffic jam scale	going down	going up	Total	going down	going up	Total	going down	going up	Total
Number of traffic jams over 10km	74	132	206	57	113	170	＋17	＋19	＋36
Number of traffic jams of 30 km or more	5	4	9	8	9	17	▲3	▲5	▲8

The forecast for 2026 is based on data collected over a 12-day period from Saturday, April 25, 2026 to Wednesday, May 6, 2026.
The data for 2025 covers the 12-day period from April 25th (Friday), 2025 to May 6th (Tuesday), 2025.

2. Useful driving information

We provide a variety of information to help you with your driving, including real-time road traffic information and congestion forecasts. For more details, please see Attachment-2 [PDF: 685KB].

3. To our customers

This document outlines important requests for our customers to follow and our customer service initiatives (measures to reduce congestion). For more details, please see Attachment-3 [PDF: 542KB].

4. Holiday discounts are not applicable during Golden Week.

To avoid severe traffic congestion, holiday discounts will not apply from Saturday, April 25th to Wednesday, May 6th.
Please see below for details.
https://www.c-nexco.co.jp/topics/2421.html

Image link (external link) to download page of Adobe Acrobat Reader

To view the PDF file, you need the Adobe Systems plug-in software "Acrobat Reader (Japanese version)". If you do not have Download from here (free)Please use it.