Chronographical Modelling for Repetitive Project

Abstract

Most building projects are scheduled using the Gantt/Precedence diagram. The lack of consideration of the sequence of work and traffic in the limited spaces of construction sites makes the resolution of conflicts more complex. Mathematical modeling and optimization techniques have been used to solve these problems. However, these solutions are less viable for application in real projects. There are too many parameters to be considered or processed with reasonable efforts and time. This paper presents an explanation of a repetitive spatiotemporal modeling solution and makes a clear distinction between these two different methods, namely, the linear and the repetitive methods. Linear methods are designed to graphically schedule a limited amount of activities in parallel to ensure continuity of resource use and support a stable and optimized production. Methods that are well-suited for planning linear projects as Roads, highways, railways, tunnels and pipelines. Repetitive models are more adapted to schedule building projects. For these projects, repeated tasks are assigned from unit to unit or from floor to floor. The paper also shows examples of modeling horizontal and vertical repetitive project.