ISO 18404: A Model for Lean Transformation in an Alliance

The literature and case studies reporting lean transformation in the construction/infrastructure sector are rare. This study’s objective is to examine whether the Lean Standard, ISO 18404 provides a useful model for lean transformation. By Case Study and Participatory Action Research, the deployment of ISO 18404 and certification journey of a UK highway alliance (the Alliance) is reported, structured around four Themes for lean transformation. Findings are supported by the latest literature along with a quantitative and qualitative survey with those involved in 18404 deployment (n=35/58). The survey data was thematically analysed and is largely articulated through the four Themes for lean transformation. Whilst ISO 18404 is imperfect, it remains that ISO 18404 provides a useful model for lean transformation and can assist with embedding a culture of sustainable continuous improvement in an Alliance.