Formoso, C., Flores, P., Barth, K., Suarez, M., Magalhães, I., Ksiazenicki, V. & Acquarone, A. (2022). Developing a Flow-Based Planning and Control Approach for Linear Infrastructure Projects. Proceedings of the 30 th Annual Conference of the International Group for Lean Construction (IGLC30), 1186–1197. doi.org/10.24928/2022/0236 Production and Planning Control 1186 DEVELOPING A FLOW-BASED PLANNING AND CONTROL APPROACH FOR LINEAR INFRASTRUCTURE PROJECTS Carlos T. Formoso 1 , Patrícia Flores 2 , Karina B. Barth 3 , Martin Suarez 4 , Ivo Magalhães 5 , Verónica Ksiazenicki 6 , and Álvaro Acquarone 7 ABSTRACT The Last Planner System (LPS) and Location Based Planning and Control (LBPC) have been successfully used in many projects, either separately or together. Despite previous studies that have discussed the role of each of them, the complementarity between LPS and LBPC still needs to be further explained by using core Lean Production concepts. Moreover, most implementations reported in the literature of those two planning models have been concerned with building projects. Only a few cases are related to infrastructure projects, which have different types of complexity in relation to conventional building projects. This paper reports the initial results of the development of a planning and control model for linear infrastructure projects. This investigation was based on a case study carried out in a construction company from Uruguay. The development of the model considers some specific complexity features of linear infrastructure projects, such as high uncertainty, and independent linear processes spread around large urban or rural areas. The main insights provided by this study are concerned with devising a flow-based planning and control tool for look-ahead planning, the definition of criteria for devising location-based systems, the emphasis of work-in- progress control, and the use of visual management. KEYWORDS Flow, production planning and control, linear projects, Last Planner, Location-based management, visual management. INTRODUCTION Major advancements in construction planning and control has been achieved by adapting and implementing core concepts and principles of the Lean Production Philosophy Ballard & Tommelein, 2020; Brady et al., 2018; Seppanen et al., 2015). In fact, changes 1 Professor, Building Innovation Research Unit (NORIE), Universidade Federal do Rio Grande do Sul (UFRGS), Brazil, formoso@ufrgs.br, orcid.org/0000-0002-4772-3746 2 Assistant Professor, Facultad de Arquitectura, Universidad de la Republica, Uruguay, pflores@farq.edu.uy 3 Managing Director, LD Consulting, Brazil, karina@ldconsulting.com.br, orcid.org/0000-0001-9612- 6246 4 Site Superintendent, Stiler Engineering, masuarez@stilerpm.com.uy 5 Project Manager, Stiler Engineering, idemagalhaes@stilerpm.com.uy 6 Innovation and Continuous Improvement Manager, Stiler Engineering, vksiazenicki@stilerpm.com.uy 7 Site Superintendent, Stiler Engineering, aacquarone@stilerpm.com.uy