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Related Experiment Video

Updated: May 30, 2025

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Fixed start method for repetitive project scheduling with simulated annealing.

Francisco Moreno1, Eric Forcael2, Francisco Orozco1

  • 1College of Engineering, Universidad Panamericana, Guadalajara, Mexico.

Heliyon
|January 30, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a new Fixed Start Method (FSM) combined with Simulated Annealing (SA) to reduce project completion time variability in repetitive construction. The FSSA method optimizes activity starts for predictable project durations.

Keywords:
Discrete event simulationFixed startsLines of balanceSimulated annealingVariability

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Area of Science:

  • Construction Management
  • Operations Research
  • Project Scheduling

Background:

  • Repetitive construction projects often suffer from high completion time variability.
  • Existing scheduling methods may not adequately address probabilistic uncertainties.
  • Predictable project completion is crucial for resource allocation and stakeholder satisfaction.

Purpose of the Study:

  • To introduce and evaluate a novel method for decreasing project completion variability in repetitive construction.
  • To optimize activity start times using probabilistic confidence and metaheuristic algorithms.
  • To enhance the reliability of construction project schedules.

Main Methods:

  • Application of the Fixed Start Method (FSM) to determine activity start times with high probabilistic confidence.
  • Optimization of probabilistic confidence levels using the Simulated Annealing (SA) metaheuristic algorithm.
  • Validation of the combined FSM and SA (FSSA) method through a case study using Discrete Event Simulation.

Main Results:

  • The FSSA method demonstrated a significant decrease in project completion time variability.
  • The coefficient of variance (COV) was used to evaluate the performance of the FSSA method.
  • The study confirmed the effectiveness of optimizing probabilistic confidence for scheduling duration.

Conclusions:

  • The proposed FSSA method effectively reduces scheduling duration variability in repetitive construction projects.
  • The integration of FSM and SA provides a robust approach to enhance construction project predictability.
  • Discrete Event Simulation validated the practical applicability and benefits of the FSSA method.