The International Conference on Roads and Railways 2025 (ICRR2025) will be held on 12–13 June 2025 at the Hong Kong Convention and Exhibition Centre. With the theme “Building Smart and Green Transport Infrastructure,” the conference will bring together global experts, engineers, and industry leaders to exchange knowledge and discuss sustainable and technology-driven road and railway development. ICRR2025 will showcase best practices and innovations while exploring Hong Kong’s major transport projects beyond 2030. It serves as a platform for global collaboration among academics, government officials, professionals, and industry leaders, strengthening Hong Kong’s competitiveness. Keynote speakers include leaders from the Hong Kong SAR Government, the Hong Kong Monetary Authority, and the Building Technology Research Institute.