Table 2 Variables formulas and explanations for scores of indices.
From: Investigating the relationship between built environment and urban vitality using big data
Variables | Name | Max | Min | Mean | S.D. |
|---|---|---|---|---|---|
Density | Average Baidu heat | 1.69 | − 1.095 | 0.264 | 0.436 |
NDVI | 122.36 | 60.886 | 90.659 | 11.514 | |
GDP | 10.314 | 0 | 2.136 | 1.418 | |
Population | 10.425 | 0 | 2.198 | 1.515 | |
Nighttime lights | 9.319 | 0 | 2.076 | 1.366 | |
Distance | Road | 8.949 | 0 | 2.171 | 1.576 |
Bus station | 232899.236 | 0 | 11501.097 | 28805.073 | |
Diversity | Landscape POI | 8078.905 | 0 | 1195.819 | 1480.324 |
Food POI | 499551.794 | 0 | 19488.477 | 59555.69 | |
Public POI | 19000.471 | 0 | 1460.621 | 2775.859 | |
Hotel POI | 51599.994 | 0 | 1501.369 | 5269.166 | |
Shopping POI | 1316021.413 | 0 | 64409.869 | 171860.849 | |
Traffic POI | 167237.744 | 0 | 9502.934 | 21628.692 | |
Design | Openness | 46.394 | 0 | 15.684 | 16.918 |
Enclosure | 0.499 | 0 | 0.152 | 0.171 | |
Walkability | 0.162 | 0 | 0.007 | 0.024 | |
Greenness | 46.078 | 0 | 9.252 | 11.275 | |
Imageability | 8.218 | 0 | 1.22 | 1.869 | |
Destination | Accessibility − 500 m | 1.057 | 0.001 | 0.044 | 0.109 |
Accessibility − 1200 m | 1.324 | 0.001 | 0.037 | 0.091 | |
Transportation − 500 m | 3.289 | 0.333 | 0.682 | 0.481 | |
Transportation − 1200 m | 7.135 | 0.203 | 1.705 | 1.136 |
