PURPOSES : A model for minimizing cutting loss and determining the optimum layout of blocks in pavements was developed in this study. METHODS : Based on literature review, a model which included constraints such as the amount, volume, overlap, and pattern, was developed to minimize the cutting loss in an irregular pavement shape. The Stach bond, stretcher bond, and herringbone patterns were used in this model. The harmony search and particle swarm algorithms were then used to solve this model. RESULTS : Based on the results of the model and algorithms, the harmony search algorithm yielded better results because of its fast computation time. Moreover, compared to the sample pavement area, it reduced the cutting loss by 20.91%. CONCLUSIONS : The model and algorithms successfully optimized the layout of the pavement and they have potential applications in industries, such as tiling, panels, and textiles.

1. Introductuon
2. Problem Formulation
3. Illustrative Example
4. Actual Pavement Comparison
5. Conclusion
ACKNOWLEDGMENTS
CONFLICT of INTEREST

• Urbino, Ivan Jan(Department of Smart Cities, Chung-Ang University)
• Lin, Wu-guang(College of Transport and Communications, Shanghai Maritime University)
• Roh Seunghyun(Department of Civil and Environmental Engineering, Chung-Ang University) | 노승현
• Cho Yoon Ho(Member · Dept. of Civil and Environmental Engineering, Chung-Ang University) | 조윤호 Corresponding author