Metric area-isation means the urban network is partitioned into a patchwork of semi-discrete areas resulted from a function of the placing, shaping and scaling of urban blocks.
Metric area-isation
Sources
Hillier, B., Turner, A., Yang, T., Park, H-T. (2007, 2010) Metric and topo-geometric properties of urban street networks: some convergencies, divergencies and new results. The Journal of Space Syntax, V(1) 2, 258-279. pp.259