Production Scheduling for Multi Project Modular Construction based on Genetic Algorithm

Abstract

The modular construction has several advantages such as high quality of product, safe work condition and short construction duration. The production scheduling of modular construction should consider time frame of factory production, transport and erection process with limited resources (e.g., modular units, transporter and workers). The production scheduling of multi modular construction project manages the modular constructions characteristics and diversity of projects, as a type of modular unit, modular unit quantities, and date for delivery. However, current modular production scheduling techniques are weak in dealing with resource interactions and each project requirement in multi modular construction project environments. Inefficient allocation of resources during multi modular construction project may cause delays and cost overruns to construction operation. In this circumstance, this research suggests a production scheduling model for schedule optimization of multi project of modular construction, using genetic algorithm as one of the powerful method for schedule optimization with multiple constrained resources. Comparing to the result of the existed schedule of case study, setting optimized scheduling for multi project decreases the total factory production schedule. By using proposed optimization tool, efficient allocation of resource and saving project time is expected.