Building Morphotypes as Tokens: Simulated Annealing Discovery of Two-Void Block Layouts Balancing Sun, Grey-Space Wind, and Visibility

This study treats initial building modal planning as the organizing unit for tropical neighborhood design and unifies three pedestrian-scale objectives: perimeter daylight at 1.5 m (S), grey-space wind (W), and ground-plane visibility (V)—within a typology-aware, two-void layout grammars for Haikou. Using α-referenced deviations (|ΔMean| + 0.25|ΔIQR| per metric) and multi-objective simulated annealing over 16 morphotypes plus two VOIDs, we obtained a Pareto archive of 4000 layouts. A thick knee emerges: mid-field paired voids with bar–court compositions consistently suppress W and V deviations while keeping S close to α; the central spine and cross-breath prototypes dominate among the top solutions, and the 80-layout atlas enables direct selection. The configuration and α baselines were fixed for full reproducibility, supporting policy-grade traceability. All evaluations were performed at the human interface with metric-specific aggregation (S over 14 non-VOID blocks; w/v over all 16), coupling building morphotypes, pedestrian-layer analytics, and archive-aware Multi-Objective Simulated Annealing (MOSA). Collectively, these results provide evidence-backed rules—site two voids near the middle, composed of tempered courts and bars, and provide strong support for near-term tropical planning codes and schematic design decisions.