Lean Construction Ireland Annual Book of Cases 2021 32 l f 2 Summary and Lessons Learned Production wastes were not effectively being recognised on the project.This prevented workers improving the work areas.The introduction of waste walks improved the awareness of wastes and allowed teams to recognise and remove wastes from their processes. Teams collaborated during waste walks to manage their work areas collectively.There was an increased understanding between the trades. The introduction of the 5S process defined an acceptable standard, where all trades work collaboratively to achieve.The impact of excessive storage and poor waste management was identified through this process. Improvement plans were agreed, and a process was put in place for reviewing work areas and ensuring they were acceptable before work started. The process was implemented across all work areas, both internally and externally. It worked best when both principal contractor and trade contractor reinforced the message. Recognising peoples’ efforts reinforced the programme.The process was less impactful when it was not supported and communicated fully by supervision. It is important that acceptable standards are defined and that they are reached collectively.This increases the visibility and the effectiveness of the initiative. Sustaining the initiative was the most difficult process.When work areas were brought to an acceptable standard there was a perception that you had to fully engage the 5S process.Work areas were maintained.However, isolated areas of waste appeared as the standardisation and sustain period were not embedded. good condition.The work areas were more organised and the there was less risk of accidental damage.There was also easier access to work areas and reduced activity associated with moving and removing materials which was causing damage to finished works.This in turn allowed site teams to focus on the task at hand, which improved coordination and allowed works to progress more efficiently. Project teams worked collectively to improve the project and then tomaintain the standard.This increased collaboration,which benefited the project and improved the quality of the finished work. Case 5
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