Table 3 Global Pearson correlations between alternative types of distance
Cartesian system | Shortest network | |||
|---|---|---|---|---|
Distance | Euclidean | Manhattan | Distance | Time |
Distances between census tracts and health services (N) | 546,984 | 546,984 | 546,984 | 546,984 |
Euclidean | 1.000 | |||
Manhattan | 0.987 | 1.000 | ||
Distance | 0.988 | 0.971 | 1.000 | |
Time | 0.976 | 0.959 | 0.992 | 1.000 |
Distances between dissemination areas and health services (N) | 3,742,218 | 3,742,218 | 3,742,218 | 3,742,218 |
Euclidean | 1.000 | |||
Manhattan | 0.986 | 1.000 | ||
Distance | 0.987 | 0.969 | 1.000 | |
Time | 0.975 | 0.957 | 0.992 | 1.000 |
Distances between blocks and health services (N) | 16,542,414 | 16,542,414 | 16,542,414 | 16,542,414 |
Euclidean | 1.000 | |||
Manhattan | 0.985 | 1.000 | ||
Distance | 0.984 | 0.964 | 1.000 | |
Time | 0.970 | 0.950 | 0.992 | 1.000 |