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The QII Partnership¡ªa collaboration between the World Bank and Japan¡ªsupports sustainable, inclusive, and resilient infrastructure. Since 2016, it has funded 296 activities in 91 countries, influencing $64B in investments and embedding quality principles into infrastructure worldwide.

QII supported the initiative aimed at advancing digital capabilities of water operators globally. This initiative is designed to enhance the digital capabilities of water operators worldwide. "Digital Water" offers digital maturity assessments, trainings, and knowledge products to support specific project components and help operators modernize and improve their performance.

This guide aims to improve how universal accessibility is considered in the built environment in Yemen. This guide provides practical instructions for applying universal accessibility principles at all stages of a construction and infrastructure investment project, starting with the planning and programming phase.

This report analyzes the key components of digital transformation in Japan over time and across key sectors. It also provides critical insight into how social, economic, and environmental challenges in cities can be addressed through digital technologies.

Fragility, conflict, and violence pose significant barriers to economic development and poverty reduction in many countries. This note takes a closer look at how the six QII Principles are being applied in practice in fragile countries.

This technical note discusses innovative bridge technologies within the Solomon Islands Roads and Aviation Project, showcasing how modular bridges can offer durable, low-maintenance solutions that improve infrastructure quality, economic efficiency, and resilience across the Pacific.

This case study showcases examples where the QII Principles have been operationalized in Japan`s urban infrastructure projects. It highlights Toyama City, which is now a global role model for compact city development.

This report reviews the evolution of Quality Infrastructure Investments (QII) in the Japanese urban sector.

The report has the goal to illustrate the entire process on data production, including the survey phases, the training activities, restitution of the raw data and details on extracted data.

Are performance-based contracts actually leading to more efficient road asset management than traditional civil works/maintenance contracts? This study analyzed the cost-effectiveness of performance-based contracts through a comprehensive ex-post performance assessment of road projects and assets. The analysis focused on evaluating different long-term road asset management strategies.