From: The importance of accurate road data for spatial applications in public health: customizing a road network
Road Data
Mean in m
Standard. Deviation in m
Maximum in m
Custom Data
7.89
3.34
15.17
NC DOT
13.10
28.92
395.06
StreetMap Pro
22.68
49.01
444.43
TIGER/Line 2000
50.04
73.08
600.32
TIGER/Line 2007
15.54
37.82
777.56