Toward Reducing Construction Project Delivery Time under Limited Resources

Hossam H Mohamed,Asmaa A Soliman,Ahmed H Ibrahim

doi:10.3390/su131911035

Hossam H Mohamed, Asmaa A Soliman + Show 1 more

Open Access

https://doi.org/10.3390/su131911035

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Abstract

One of the most vital construction project aspects is to complete a project in minimum time restricted to the time–cost trade-off. Overlapping activities’ planning and their impact on the project under limited resource constraints should be considered. This study aims to develop a model for optimizing the project schedule and cost regarding overlap activities and their impacts. This study reviews previous studies on changes in past activities likely to produce additional reworking of subsequent activities. In addition, an AHP model is developed to assess the reworking time of subsequent activities based on possible changes in previous activities. In addition, five realistic construction projects are applied. Finally, an optimizing model is developed for optimizing project time and cost using overlapping techniques by using the Java program. The results indicate that the proposed model can be used by project managers easily for solving time and cost optimization problems. In addition, it can be updated to continuously improve its functionality. Finally, it can be updated later to support AI for finding better solutions.

Highlights

Rework in construction projects is a widespread problem that affects project performance negatively
Risks are classified according to different risk categories, activity development, sensitivity, production reliability, and constraints on construction projects
The delay in the schedule was defined as completing the construction project after the specified date

Summary

Introduction

Rework in construction projects is a widespread problem that affects project performance negatively. Love et al [2] defined rework as the unnecessary effort to re-implement a process or activity incorrectly carried out the first time regardless of any changes in project scope or design that might lead to additional work. Enshassi et al [3] defined rework as a serious problem in construction projects in the. Risks are classified according to different risk categories, activity development, sensitivity, production reliability, and constraints on construction projects. The delay in the schedule was defined as completing the construction project after the specified date. This delay is often accompanied by cost overruns. Identifying the most important factors affecting a project could reduce delays in the construction schedule

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