Expressway traffic conditions during Golden Week (flash report)
[Niigata version]

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May 8, 2025
East Nippon Expressway Co., Ltd.
Niigata Regional Head Office

NEXCO EAST Niigata Regional Head Office (Chuo-ku, Niigata City) would like to inform you that it has compiled traffic conditions for the Golden Week period (Friday, April 25th, 2025 to Tuesday, May 6th, 2025: 12 days).

≪Overview of traffic conditions≫

  1. The average daily traffic volume on representative sections was 97% compared to 2024.
  2. Traffic volume was highest on Out-bound lanes on Saturday, May 3rd, and on the In-bound lanes on Monday, May 5th.
  3. There were three traffic jams of 5km or more, an increase of two from 2024.
  4. The largest traffic jam occurred on the E8Hokuriku Expressway (In-bound) between Sanjo-Tsubame IC and Nagaoka JCT, and was 11.6 km long due to traffic congestion on Saturday, May 3rd.

1. Average daily traffic volume in representative sections *1 (vehicles/day)

Road name Section *2 Reiwa 7 A 2024 B Comparison 2024 A/B
E7 Nitto Expressway Niigata Kameda IC ~ Niigata Higashi SIC 14,800 15,700 94%
Nakajo IC ~ Tainai SIC 10,800 11,300 96%
E8Hokuriku Expressway Oyashirazu IC to Itoigawa IC 21,400 21,400 100%
Kashiwazaki IC -Nishiyama IC 24,400 25,300 96%
Makikata Higashi IC to Niigata Nishi IC 44,600 46,400 96%
E17Kan-Etsu Expressway Minakami Ministry of Rites (Tang-dynasty China) IC ~ hot spring mizuna (Brassica rapa var. nipposinica) IC 23,900 24,700 97%
Echigokawaguchi IC -Ojiya IC 21,300 22,500 95%
E18 Joshin-Etsu Expressway Myoko Kogen IC to Nakago IC 19,200 19,600 98%
Joetsu Takada IC ~ Joetsu JCT 17,500 18,100 97%
E49 Ban-Etsu Expressway Mikawa IC to Yasuda IC 9,700 10,300 94%
Niitsunishi SIC ~ Niigata Chuo JCT 9,900 10,300 96%
Simple average daily traffic volume for the above 11 sections 19,800 20,500 97%
  1. Traffic volume is approximate by traffic counter (all models)
  2. IC: interchange, SIC: smart interchange, JCT: junction

<Reference: Comparison of Golden Week dates for 2025 and 2024 >

Reiwa 7 4/25 (Fri) April 26 (Sat) April 27th (Sun) 4/28(Mon) April 29th (Tue) April 30th (Wednesday) 5/1 (Thu) 5/2 (Fri) 5/3 (Sat) 5/4 (Sun) 5/5(Mon) 5/6 (Tue)
2024 Thursday, April 25th April 26 (Fri) April 27 (Sat) April 28th (Sun) 4/29(Mon) April 30 (Tue) 5/1 (Wed) 5/2 (Thu) 5/3 (Fri) 5/4 (Sat) 5/5 (Sun) 5/6(Mon)

2. Main congestion points

Traffic congestion during Golden Week in 2025 (maximum traffic congestion length: 5km or more): Occurred a total of 3 times

worst Road name / direction Traffic jam location Peak date and time Extension Cause of traffic jam
1 E8 Hokuriku Expressway (above) Sanjo Tsubame IC ~ Nagaoka JCT May 3 (Sat) 11:30 11.6km Traffic concentration
2 E8Hokuriku Expressway (below) Nagaoka JCT ~ Sanjo Tsubame IC May 3 (Sat) 09:35 7.1km Traffic accident
3 E8Hokuriku Expressway (below) Oyashirazu IC to Itoigawa IC May 5th (Mon) 18:20 6.4km Traffic accident road closure

<Reference: Traffic congestion during Golden 2024 (maximum traffic congestion length of 5km or more): Occurred 1 time in total>

worst Road name / direction Traffic jam location Peak date and time Extension Cause of traffic jam
1 E8Hokuriku Expressway (below) Nagaoka JCT ~ Nakanoshima Mitsuke IC May 3 (Fri) 11:00 6.7km Traffic accident

3. Road closures

Road closures during Golden Week in 2025

Road name / direction Closed place period Cause of road closure
E8Hokuriku Expressway (below) Asahi Asahi IC ~ Oyashirazu IC Friday, April 25th 17:23-18:40 Falling Object Scattering
E8Hokuriku Expressway (below) Itoigawa IC ~ Nadachitanihama IC April 28th (Monday) 15:48-20:15 Traffic accident
E8 Hokuriku Expressway (above) Nishiyama IC ~ Yoneyama IC Tuesday, April 29th, 11:11-11:28 Other
E17Kan-Etsu Expressway (below) Minakami Ministry of Rites (Tang-dynasty China) IC ~ hot spring mizuna (Brassica rapa var. nipposinica) IC Tuesday, April 29th, 19:54-21:05 Slope fire
E17Kan-Etsu Expressway (above) Yuzawa IC-Minakami IC Tuesday, April 29th, 20:20-21:05
E8Hokuriku Expressway (below) Nishiyama IC ~ Nakanoshima Mitsuke IC May 3rd (Sat) 10:08-12:10 Traffic accident
E17Kan-Etsu Expressway (below) Nagaoka IC ~ Nagaoka JCT
E8Hokuriku Expressway (below) Itoigawa IC -Nou IC May 5th (Monday) 16:28-19:25 Traffic accident

4. Daily traffic conditions for representative sections (average of 11 sections)

Image of daily traffic conditions in representative sections (average of 11 sections) (Out-bound line)
Image of daily traffic conditions in representative sections (average of 11 sections) (In-bound line)
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