Table 10.
Comparison of estimates for dwellings with access to public open space (any; ≥1 hectare; ≥1 hectare or having a sport facility), by derived pedestrian road network (OpenStreetMap or Vicmap Transport) and source of public open space data.
| Any public open space | Public open space of area ≥1 hectare | Public open space ≥1 Hectare, or any size having a sport facility | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Major Urban | Other Urban | Rural Balance | Bounded Locality | Major Urban | Other Urban | Rural Balance | Bounded Locality | Major Urban | Other Urban | Rural Balance | Bounded Locality | |
| Preliminary analysis using public open space datasets derived from OpenStreetMap, VPA (gold standard) and Vicmap FOI | ||||||||||||
| Victorian Planning Authority (gold standard) | ||||||||||||
| Using OpenStreetMap network | 91.4 | 69.2 | 32.5 | 61.9 | 57.1 | 49.3 | 22.5 | 44.1 | 57.9 | 50.0 | 23.1 | 45.2 |
| Using Vicmap Transport network | 91.8 | 69.8 | 32.7 | 62.9 | 57.2 | 49.9 | 22.9 | 45.3 | 58.0 | 50.5 | 23.5 | 46.9 |
| Difference in network results | 0.4 | 0.6 | 0.2 | 1.0 | 0.1 | 0.6 | 0.4 | 1.2 | 0.1 | 0.5 | 0.4 | 1.7 |
| Difference to gold standard | — | — | — | — | — | — | — | — | — | — | — | — |
| Vicmap FOI | ||||||||||||
| Using OpenStreetMap network | 84.8 | 83.0 | 28.2 | 59.5 | 56.6 | 53.4 | 18.9 | 37.0 | 58.6 | 54.0 | 19.2 | 37.8 |
| Using Vicmap Transport network | 84.9 | 83.8 | 28.8 | 62.9 | 56.6 | 53.6 | 19.2 | 40.4 | 58.5 | 54.2 | 19.6 | 41.7 |
| Difference in network results | 0.1 | 0.8 | 0.6 | 3.4 | 0.0 | 0.2 | 0.3 | 3.4 | −0.1 | 0.2 | 0.4 | 3.9 |
| Difference to gold standard | 6.6 | −13.8 | 4.3 | 2.4 | 0.5 | −4.1 | 3.6 | 7.1 | −0.7 | −4.0 | 3.9 | 7.4 |
| OpenStreetMap (version 1) | ||||||||||||
| Using OpenStreetMap network | 84.8 | 67.2 | 40.4 | 58.2 | 59.7 | 50.0 | 35.3 | 50.7 | 63.1 | 51.0 | 35.6 | 51.6 |
| Using Vicmap Transport network | 84.9 | 67.6 | 42.1 | 59.9 | 59.5 | 50.5 | 36.9 | 54.5 | 62.8 | 51.3 | 37.1 | 55.0 |
| Difference in network results | 0.1 | 0.4 | 1.7 | 1.7 | −0.2 | 0.5 | 1.6 | 3.8 | −0.3 | 0.3 | 1.5 | 3.4 |
| Difference to gold standard | 6.6 | 2.0 | −7.9 | 3.7 | −2.6 | −0.7 | −12.8 | −6.6 | −5.2 | −1.0 | −12.5 | −6.4 |
| OpenStreetMap (version 2) | ||||||||||||
| Using OpenStreetMap network | 84.7 | 67.4 | 36.3 | 56.9 | 53.3 | 41.1 | 12.4 | 29.6 | 55.8 | 42.0 | 13.1 | 31.6 |
| Using Vicmap Transport network | 84.7 | 67.7 | 38.0 | 58.4 | 53.0 | 41.1 | 12.8 | 31.0 | 55.5 | 41.9 | 13.5 | 32.2 |
| Difference in network results | 0.0 | 0.3 | 1.7 | 1.5 | −0.3 | 0.0 | 0.4 | 1.4 | −0.3 | −0.1 | 0.4 | 0.6 |
| Difference to gold standard | 6.7 | 1.8 | −3.8 | 5.0 | 3.8 | 8.2 | 10.1 | 14.5 | 2.1 | 8.0 | 10.0 | 13.6 |
| Post hoc analysis of final OpenStreetMap-derived public open space data, with full exclusion criteria applied as in main study | ||||||||||||
| OpenStreetMap (final version) | 75.9 | 58.1 | — | 54.4 | 46.0 | — | — | 77.9 | 62.7 | — | — | |
| Difference to gold standard * | 15.5 | 11.1 | — | — | 2.7 | 3.3 | — | — | −20.0 | −12.7 | — | — |
*Analysis results for Greater Melbourne presented here used a further refined version of the OpenStreetMap-derived public open space dataset, with analysis restricted for address points located in urban sections of state and employed other exclusion criteria detailed in the methods section.