“…Design-related Design complexity (W1) [3,15] Design documents errors (W2) [3,5,13,16] Design changes during construction (W3) [3,5,15] Poor coordination & communication (W4) [3,5,[12][13][14] Procurement-related Ordering errors (W5) [3,13,15] Buy low-quality materials (W6) [3,13,15] Human-related Lack of experienced designers (W7) [3,13,15] Lack of skilled workers (W8) [3,5,[13][14][15] Handling and Storage On-site transportation methods (W9) [3,13,15] Inappropriate storage (W10) [13][14][15] Site Conditions Leftover materials on site (W11) [3,13,15] Poor site condition (W12) [3,5,13,15] Management-related Inaccurate planning and scheduling (W13) [3,12,13,15] Incapable site supervision (W14) [3,13...…”