This study is a personal effort to assess the reliability of workflow in the light of the fact that contractors do not apply the LPS. To identify workflow issues and highlight causes of delay PPC was measured for the duration of the project.
In this study, ten shelters from " Self-help " rehabilitation project were monitored. In order to apply LPS, companies must collect key metrics on site such data include Percent Plan Complete (PPC) for tasks done on site. The Last Planner System (LPS) implementation showed great results in improving workflow for construction projects. The paper highlights that firms already adopting lean construction practices or those companies in the beginning stages of implementing them would greatly benefit from this application. The benefits of using " Instantask " are tested by conducting a social network analysis comparison via SocNetV. The paper presents a prototype user interface of the application. Additionally, the application will track and document the emergence of these tasks to improve future planning activities. The proposed application aims at enhancing fast, clear, and effective coordination between users to mobilize the action plan needed to address these new tasks on site. The users represent all concerned project participants: managers, site engineers, foremen, and tradesmen.
" Instantask " attempts to facilitate an agile response to these unplanned tasks by making them visible to its users as soon as they are noticed and recorded. The purpose of this paper is to introduce the concept of " Instantask ", as a mobile application addressing this problem. These new tasks are an added burden to the work plan and will ultimately impact construction workflow. However, despite good planning practices, new tasks not mentioned on the lookahead schedule frequently appear during the week of execution. In modern construction projects, reliable planning is of paramount importance.
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