Indicators Description Mean Standard deviation (SD) Classification Classification method
Concentration of amenities (metre) Standard distance of the amenities from the mean centre. A shorter distance represents that the amenities are more centred. 439.97 51.18 Compact =< -1SD
Semi-compact > -1SD & < +1SD
Dispersed >= +1SD
Directional distribution of the amenities Ratio of the minor over major axis of standard deviation ellipse of the amenities. A zero ratio represents that the amenities are located along a straight line whereas a ratio of 1 means that the amenities are distributed in a circular fashion. 0.73 0.13 Linear =< -1SD
Semi-linear > -1SD & < +1SD
Circular >= +1SD
Threshold population (person per amenities) Total population within the 800m network buffer from the centre of the SA1s is divided by the number of amenities located within the buffer. Total population was calculated using the proportionate method based on the SA1 population. 63.34 23.78 Dependent on neighbouring SA1 =< -1SD
Adequate > -1SD & < +1SD
Over populated >= +1SD
Street network patterns Derived based on combinations of intersection and cul-de-sac densities – these were respectively calculated as the number of 3 (or more) way intersections and dead-ends divided by the buffer area of the SA1s. Intersection and cul-de-sac densities were classified as low (=< -1SD), moderate (> -1SD & < +1SD) and high (>= +1SD). 1.28 interse-ction per hectare 0.44 Organic (Int-den = low & cul-den = moderate) or (Int-den = low & cul-den = high) or (Int-den = moderate & cul-den = high)
0.25 dead-ends per hectare 0.21 Semi-grid (Int-den = low & cul-den = low) or (Int-den = moderate & cul-den = moderate) or (Int-den = high & cul- den = high)
Complete grid (Int-den = high & cul-den = low) or (Int-den = high & cul-den = moderate) or (Int-den = moderate & cul-den = low)