Technical Review Committee materials on long-term maintenance and renewal of Expressway assets
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- Technical Review Committee materials on long-term maintenance and renewal of Expressway assets
NEXCO EAST, NEXCO CENTRAL, and NEXCO WEST have established “Technical Review Committee on Long-Term Maintenance and Renewal of Expressway Assets” (abbreviation: Long-term Maintenance Review Committee), which is the property of Expressway are undergoing deterioration over time. We will continue to manage in a healthy state for the future, and we are considering measures necessary for customers to use it with peace of mind.
Holding situation
第11回委員会 令和8年4月30日
第10回委員会 令和7年4月11日
9th Committee 2024
- Discussed on January 12, 2024, and published based on the discussion at the National Trunk Road Subcommittee on 2024 (published on 2024)
- Summary of the 9th meeting [PDF: 42KB]
- 9th Committee Materials [PDF: 33.1MB]
- 9th meeting summary [PDF: 68KB]
Interim Report January 30, 2023
- Interim Report (Summary) [PDF: 788KB]
- Interim report (reference material) [PDF: 18.8MB]
- On page 42, there is an error in the opening year of the Tsuchitaru area of the Kan-Etsu Expressway, which has been corrected. (Added on February 1, 2023)
(Incorrect) 1987 (Correct) 1985
- On page 42, there is an error in the opening year of the Tsuchitaru area of the Kan-Etsu Expressway, which has been corrected. (Added on February 1, 2023)
8th Committee Meeting January 30, 2023
- Summary of the 8th meeting [PDF: 83KB]
- 8th Committee Materials [PDF: 17.6MB]
- Document 2-2 On page 42, there is an error in the opening year of the Kan-Etsu Expressway Tsuchitaru district, which has been corrected. (Added on February 1, 2023)
(Incorrect) 1987 (Correct) 1985
- Document 2-2 On page 42, there is an error in the opening year of the Kan-Etsu Expressway Tsuchitaru district, which has been corrected. (Added on February 1, 2023)
- Summary of the 8th meeting【PDF：161KB】
7th Committee October 28, 2020
- Summary of the 7th meeting [PDF: 87KB]
- 7th committee meeting materials [PDF: 5.1MB]
- Summary of the 7th meeting【PDF：102KB】
The 6th Committee Reiwa March 3, 4
- Outline of the 6th proceedings [PDF: 85KB]
- 6th Committee Material [PDF: 6.4MB]
- Summary of the 6th proceedings [PDF: 108KB]
5th Committee 2020 January 28
- 5th Meeting Summary [PDF: 45.4KB]
- 5th Committee Material [PDF: 7.99MB]
- The fifth proceedings summary [PDF: 82.6KB]
Final Report (1st to 4th) January 22, 2014
- Recommendation book [PDF: 257KB]
- Chairman's comment [PDF: 105KB]
- Joint comment from NEXCO3 President [PDF: 107KB]
- Final Report [PDF: 13.4MB]
4th Committee January 22, 2014
- The fourth proceedings summary [PDF: 106KB]
- Examination of the implementation period of large-scale renewal and repair (Meeting 1) [PDF: 896KB]
- Issues associated with the implementation of large-scale renewal / repair (congress 2) [PDF: 879KB]
- Report of examination results and examination results of damage prevention measures such as third parties (Meeting 3) [PDF: 2.4MB]
Interim report April 25, 2013
- Interim report (summary) [PDF: 593KB]
- Ideal way of long-term maintenance and renewal of Expressway assets Intermediate report [PDF: 4.4MB]
3rd Committee April 10, 2013
- Third proceedings summary [PDF: 57KB]
- 3rd Committee Material [PDF: 7.7MB]
- 3rd Committee materials (transformation analysis results and necessary requirements) [PDF: 365KB]
- About the setting of the third party damage prevention measures and the ideal examination WG for inspection [PDF: 115KB]
- Scope of the committee's examination and viewpoint of examination [PDF: 517KB]
2nd Committee March 5, 2013
- Second proceedings summary [PDF: 51KB]
- 2nd Committee Material (Meetings 1-4) [PDF: 1.4MB]
- 2nd Committee Material (Meeting 5-1) [PDF: 3.7MB]
- 2nd Committee Material (Meetings 5-2-5-3) [PDF: 3.4MB]
- 2nd Committee Material (Meetings 6-7) [PDF: 161KB]
- The second proceedings summary [PDF: 165KB]
1st Committee November 7, 2012
- First meeting summary [PDF: 51KB]
- Purpose of establishing the committee (Meeting 1) [PDF: 85KB]
- Committee examination contents and schedule (Meeting 2) [PDF: 559KB]
- 1st Committee Materials (Meetings 3, 4, 5) [PDF: 4MB]
- Comments from the 1st Chairman [PDF: 38KB]
- The first proceedings summary [PDF: 73KB]
委員名簿（令和8年4月30日時点）
| Chairman Yozo Fujino | 東京大学 名誉教授 |
|---|---|
| Committee Hideki Ota | Chuo University Research and Development Organization Professor |
| Member Toyoaki Miyakawa | Kyoto University Professor Emeritus |
| Committee Kazuo Nishimura | Professor Emeritus, Tokyo Metropolitan University |
| Committee member Shoichi Akiba | Professor, Faculty of Industrial Science and Technology, Nihon University |
| 委員 田仲 博幸 | General Manager of Management Business Headquarters, East Nippon Expressway Company Limited |
| 委員 関谷 富彦 | General Manager of Conservation Planning Division, Central Nippon Expressway Company Limited |
| 委員 永田 順宏 | West Nippon Expressway Company Limited Maintenance Service Business Headquarters General Manager |
（オブザーバー）
廣瀬 健二郎 （独）日本高速道路保有・債務返済機構 企画部長
(Titles omitted)
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