A 2D floor plan shows where rooms are, but not how people will actually move through them, where dead zones will form, or what view a seated person on the living room sofa will have. 3D Space and Circulation Analysis resolves these questions before construction.
Space Syntax is a graph-based method for analysing spatial relationships. The Integration value of a space measures how easily it is reached from all other parts of the home — spaces with low Integration scores tend to become under-used dead zones. Connectivity counts how many other spaces a room directly connects to. Software such as DepthMapX or Rhino Space Syntax plugins visualise these values as colour-mapped overlays on the 3D model, immediately revealing which zones are well-connected and which are isolated.
Traffic Flow Analysis identifies bottlenecks that will frustrate daily life. A 90cm corridor looks adequate on a 2D drawing, but simulation of two people passing simultaneously (requiring 120cm) or a stroller moving through (requiring 100cm) reveals the problem before it is built. This analysis is especially critical for homes that will house elderly residents or young children. Kitchen triangles, the distance from pantry to cooking hob to prep counter, and the width of passages between kitchen island and cabinetry all affect daily functional efficiency in ways only simulation reveals.
Visibility Analysis (Isovist analysis) maps what can be seen from any point in the home. Applications include optimising television placement for clear sightlines from every sofa position, ensuring the home office desk is not visible from the entry corridor (privacy), enabling supervision of children’s play areas from the kitchen without line-of-sight obstructions, and confirming that key garden views are captured from the primary seating positions. The investment in Circulation and Visibility Analysis — THB 15,000–30,000 — discovers problems that would cost THB 100,000–500,000 to correct after construction.