CoST increases transparency and accountability to deliver better infrastructure more efficiently. This is achieved by enabling the disclosure of infrastructure project data in the CoST Infrastructure Data Standard (IDS) format and then validating and interpreting the disclosed data through an Assurance process. Through disclosure and assurance, government, industry and civil society can work together to demand better infrastructure.

The Ukraine case study demonstrates how CoST can be successfully used to promote greater transparency and accountability in public infrastructure within a challenging political, social and economic context. The case study highlights the success factors and identifies the key lessons learned.