Table 1. Mean Network Structure Variables by Metropolitan Population Quintile.
| Smaller | Larger | ||||
| Variable | 1 | 2 | 3 | 4 | 5 |
| alpha | 0.14 | 0.14 | 0.16 | 0.18 | 0.17 |
| beta | 1.27 | 1.29 | 1.31 | 1.36 | 1.35 |
| gamma | 0.42 | 0.43 | 0.44 | 0.45 | 0.45 |
eta ( ) |
0.07 | 0.07 | 0.09 | 0.09 | 0.11 |
| theta | 0.53 | 0.62 | 0.76 | 0.91 | 1.12 |
| Circuity | 1.32 | 1.31 | 1.33 | 1.33 | 1.27 |
| Treeness | 0.29 | 0.26 | 0.26 | 0.23 | 0.21 |
| Entropy | 0.60 | 0.54 | 0.42 | 0.34 | 0.42 |
Roadways per capita ( ) |
7.1 | 6.6 | 6.4 | 5.5 | 5.4 |
| Delay (%) | 14 | 22 | 22 | 30 | 36 |
| Drive Alone Mode Share (%) | 80 | 79 | 78 | 76 | 73 |
Journey to Work time ( ) |
23.4 | 24.4 | 25.0 | 27.0 | 29.9 |
VKT per capita ( ) |
41.12 | 42.24 | 38.63 | 38.80 | 37.22 |
| Accessibility (Jobs in 30 minutes) | 1120460 | 1029221 | 1136220 | 1291576 | 1491337 |
Urbanized Area Density ( ) |
776 | 764 | 951 | 983 | 1103 |
| MSA Population | 1200929 | 1666799 | 2174582 | 3511888 | 8014309 |
| Median HH Income | 42733 | 46441 | 43755 | 49309 | 48811 |