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Table 7 Summary of address-level hard- threshold indicator and ULI (in italics) distribution

From: The Urban Liveability Index: developing a policy-relevant urban liveability composite measure and evaluating associations with transport mode choice

  Hard threshold ULI
Mean ± SD 25th p. Median 75th p. Min. Max.
Raw indicators       
Walkability† 0.0 ± 2.4 − 1.3 − 0.1 1.0 − 7.4 13.4
 Daily Living (/3)† 1.8 ± 1.0 1.0 2.0 3.0 0.0 3.0
 Dwellings per Ha 14.1 ± 5.8 11.1 13.3 15.7 0.0 52.1
 3 + way street connections per km2 70.2 ± 20.5 60.3 67.4 76.2 2.0 201.2
Social infrastructure mix (/16)† 7.1 ± 3.7 4.0 7.0 10.0 0.0 16.0
Public transport access meets policy (%)† 68.4 ± 46.5 0.0 100.0 100.0 0.0 100.0
Large park access (%)† 49.0 ± 50.0 0.0 0.0 100.0 0.0 100.0
Air pollution (predicted NO2 ppb.) 8.9 ± 2.6 7.1 8.7 0.3 3.6 34.9
Affordable housing (SA1 %) 11.4 ± 8.9 5.4 10.5 16.2 0.0 100.0
Local work opportunities (SA2 %) 26.6 ± 11.2 19.4 24.4 29.7 10.0 68.7
Conditionally scaled (compressed outliers)       
Walkability† −0.1 ± 2.1 − 1.3 − 0.1 1.0 − 7.2 7.2
 Daily Living (/3)† 1.8 ± 1.0 1.0 2.0 3.0 0.0 3.0
 Dwellings per Ha 13.9 ± 4.9 11.1 13.3 15.7 0.0 31.4
 3 + way street connections per km2 69.2 ± 17.0 60.3 67.4 76.2 8.7 131.6
Social infrastructure mix (/16)† 7.1 ± 3.7 4.0 7.0 10.0 0.0 16.0
Public transport access meets policy (%)† 68.4 ± 46.5 0.0 100.0 100.0 0.0 100.0
Large park access (%)† 49.0 ± 50.0 0.0 0.0 100.0 0.0 100.0
Air pollution (predicted NO2 ppb.) 8.8 ± 2.3 7.1 8.7 10.3 3.6 16.6
Affordable housing (SA1%) 11.1 ± 8.2 5.4 10.5 16.2 0.0 38.2
Local work opportunities (SA2%) 26.2 ± 10.2 19.4 24.4 29.7 10.0 60.1
Normalised, conditionally scaled Indicators, with composite index       
ULI 99.2 ± 4.9 95.9 99.4 102.5 83.1 118.9
ULI including air quality* 99.1 ± 3.8 96.6 99.2 101.7 84.9 112.6
 Walkability 100.0 ± 10.0 94.1 99.7 104.9 66.6 134.2
  Daily Living (/3)† 100.0 ± 10.0 92.3 101.9 111.5 82.7 111.5
  Dwellings per Ha 100.0 ± 10.0 94.4 98.9 103.8 71.7 135.9
  3 + way street connections per km2 100.0 ± 10.0 94.8 99.0 104.1 64.3 136.8
Social infrastructure mix (/16)† 100.0 ± 10.0 91.6 99.8 108.0 80.7 124.3
Public transport access meets policy (%)† 100.0 ± 10.0 85.3 106.8 106.8 85.3 106.8
Large park access (%)† 100.0 ± 10.0 90.2 90.2 110.2 90.2 110.2
Air quality 100.0 ± 10.0 93.5 100.5 107.4 66.2 122.7
Affordable housing (SA1 %) 100.0 ± 10.0 93.0 99.3 106.3 86.4 133.2
Local work opportunities (SA2 %) 100.0 ± 10.0 93.3 98.2 103.4 84.1 133.2
  1. Constituent sub-indicators contributing to walkability score are included for reference purposes
  2. * Sensitivity analysis
  3.  Indicators or composite indices with values which may be impacted by choice of hard- or soft- destination threshold