Table 2.

Morphometric characters used to describe the form component of spatial signatures (part 2).

character	category	reference
perimeter-weighted neighbours of ETC	distribution	23
area covered by neighbouring cells	dimension	23
reached ETCs by neighbouring segments	intensity	23
reached area by neighbouring segments	dimension	23
node degree of junction	distribution	48
mean distance to neighbouring nodes of street network	dimension	23
mean inter-building distance	distribution	49
weighted reached enclosures of ETC	intensity	23
reached ETCs by tessellation contiguity	intensity	23
reached area by tessellation contiguity	dimension	23
area of enclosure	dimension	21
perimeter of enclosure	dimension	12
circular compactness of enclosure	shape	43
equivalent rectangular index of enclosure	shape	45
compactness-weighted axis of enclosure	shape	50
orientation of enclosure	distribution	12
perimeter-weighted neighbours of enclosure	distribution	23
area-weighted ETCs of enclosure	intensity	23
local meshedness of street network	connectivity	50
mean segment length within 3 steps	dimension	23
local cul-de-sac length of street network	dimension	23
reached area by local street network	dimension	23
reached ETCs by local street network	intensity	23
local node density of street network	intensity	23
local proportion of cul-de-sacs of street network	connectivity	51
local proportion of 3-way intersections of street network	connectivity	48
local proportion of 4-way intersections of street network	connectivity	48
local degree weighted node density of street network	intensity	21
local closeness of street network	connectivity	52
square clustering of street network	connectivity	23

For details of the implementation, refer to the reproducible Jupyter notebooks available at urbangrammarai.xyz.