Source: US Department of Transportation, BTS, G-7 Countries: Transportation Highlights.
Road Transport Density Measures, G7 Countries, 1996
The two density measures portrayed in the above figure reveal different geographical settings and levels of motorization. Although the United States and Canada have low levels of road density per square kilometers comparatively to Japan and Western European countries, they are significantly committed to road transportation. This commitment is reflected in the availability of roads per capita (km per million people) where significantly higher figures are observed.