Specific Renewal and Other Construction Work (Large-Scale Renewal and Repair) Plan and Status of Implementation
In addition to deterioration due to aging, the deterioration of structures has become apparent due to harsh usage conditions such as an increase in large vehicles and increased distances through snowy, cold regions and coastal areas. In order to ensure the long-term soundness of Expressway, specific renewal work has been planned and formulated, and work has been underway since fiscal 2015. In order to proceed with specific renewal work, traffic restrictions such as road closures and two-way traffic are required in each area. To ensure that the purpose and necessity of the project are fully understood and widely disseminated throughout society, the "Expressway Renewal Project" has been adopted as the common name for the project among Expressway companies. As of the end of March 2024, large-scale bridge renewal (deck slabs) has reached 24 km on a contract extension basis, 55% progress. In order to further promote progress, we will continue to consult with relevant organizations and carry out construction work to advance the project, as well as develop new technologies and strengthen our systems and information provision.
Items
Remarks
Total number of renewal projects in progress
255
2024 results
Of which bridge slab replacement
2024 results
Of which, high-performance floor slab waterproofing, etc.
2024 results
Of which, other
2024 results
Environmental and Technology Development Business
Supply chain emissions status (comparison between base year and FY2023)
The Group's supply chain emissions (actual) in FY2023 from its business activities were approximately 8.39 million tons-CO₂, a reduction of approximately 6% compared to the base year of FY 2013 supply chain emissions.
Supply Chain Emissions It covers Scope 1 (fuel use), Scope 2 (electricity use), and Scope 3 (emissions from construction work procured for the construction and management of Expressway, and from vehicles traveling on Expressway, etc.).
Material input: Main materials (soil, sand, asphalt, concrete, and ready-mixed concrete) for construction projects completed in FY2023 (earth, sand, asphalt, concrete, and ready-mixed concrete)
Substance emissions: In addition to construction by-products stipulated in the Construction Recycling Law, for projects in FY2023, the amount of waste collected from SA/PA waste bins, waste refurbished from road surface cleaning, and plant materials generated from grass cutting and tree pruning work were counted.
Number of EV quick chargers installed
Number of EV quick chargers installed
154 locations
DraPla Innovation Lab
Crossing Industry Boundaries
The DraPla Innovation Lab has been working to create new services and businesses since FY2021, with the aim of creating next-generation Expressway services and innovations that will revitalize local communities and solve social issues, through the verification of technologies and business models with companies that have new technologies, service ideas, and so on. We will continue to create new services and businesses through the " Innovation Lab" from FY2021.
Conducting demonstration tests and measuring effectiveness
Between FY2021 (Phase I) and FY2023 (Phase II), we have worked with a total of 23 companies on numerous demonstration experiments. 4 companies were selected in January 2025 for FY2024 (Phase IV), and we are proceeding with demonstration experiments and effectiveness measurement in FY2025.
selected companies
27 companies
Demonstration experiment conducted
27 companies
Investment
2 companies
Overseas Activities
Technical Contributions through Consulting
We provide technical support for road operation and maintenance in each country with the aim of providing technical cooperation to local government agencies. We also dispatch experts on Expressway construction and maintenance to JICA (Japan International Cooperation Agency) and PIARC (World Road Association) to help resolve issues. We also make international contributions by accepting technical trainees from various countries.
Countries in which we operate
5 countries
Human Resources
Items
Average age of employees
40.2 years old
Average years of employee service
16.2 years
Percentage of female employees
18.0%
Proportion of women in managerial positions
5.7%
Percentage of male employees taking childcare leave
42.4%
Number of overtime hours worked per employee (average)*1
26.8h/month
Number of vacation days taken per employee
26.3 days/year
Wage gap between men and women
69.9%※2
Percentage of employees receiving health checkups, etc.
100.0%
Percentage subject to secondary health examination
0.04%
Stress Check Examination Rate
99.7%
Total number of days of annual paid leave and various types of special leave