Table 4

Principle Components analysis of street connectivity variables

Eigenvalue

4.958

2.596

0.628

0.298

Percent

55.092

28.849

6.982

3.311

Cum Percent

55.092

83.941

90.922

94.234


Link Node Ratio

0.3054

0.4172

-0.1094

-0.2381

Intersection Density

0.3453

-0.3079

0.4147

-0.0712

Connected Node Ratio

0.3603

0.2914

-0.1914

-0.3613

Street Density

0.3911

-0.1710

0.2638

-0.4341

Gamma

0.3870

0.2503

-0.1512

0.4498

Alpha

0.4087

0.1694

-0.2494

0.3422

Block Density

0.3624

-0.2037

0.4533

0.3491

Median Block Length

-0.1040

0.5307

0.4348

-0.2629

Average Block Length

-0.2140

0.4501

0.4797

0.3300


Berrigan et al. International Journal of Health Geographics 2010 9:20   doi:10.1186/1476-072X-9-20

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