Table 2.
Correlations between areas of the five measures, and between the measures and potential determinants. Spearman's rank correlation. SDE1 = standard deviational ellipse at 1 standard deviation; SDE2 = standard deviational ellipse at 2 standard deviations; RNB = road network buffer; STT = standard travel time polygon; RTT = relative travel time polygon.
| SDE1 | SDE2 | RNB | STT | RTT | |
| Correlations between the areas of the activity space measures | |||||
| SDE1 | 1.000 | ||||
| SDE2 | 1.000 | 1.000 | |||
| RNB | 0.782 | 0.782 | 1.000 | ||
| STT | -0.113 | -0.113 | -0.153 | 1.000 | |
| RTT | 0.709 | 0.709 | 0.924 | -0.104 | 1.000 |
| Correlation between area and the number of reported activity destinations | 0.355 | 0.355 | 0.479 | 0.068 | 0.396 |
| Correlation between area and maximum travel time to a routine destination | 0.686 | 0.686 | 0.900 | -0.362 | 0.954 |
| Correlation between area and travel time to nearest primary care opportunity | 0.277 | 0.277 | 0.188 | -0.536 | 0.099 |
| Correlation between area and residence located within 5 km of a primary road | -0.154 | -0.154 | -0.121 | 0.385 | -0.085 |