maps are also distinct for the global knowledge required to construct them. A meaningful map of the world could not be constructed before the European Renaissance because less than half of the earth's coastlines, let alone its interior regions, were known to any culture. New knowledge of the earth's surface has been accumulating ever since and continues to this day. Maps of the world generally focus either on political features or on physical features. Political maps emphasize territorial boundaries and human settlement. Physical maps show geographic features such as mountains, soil type or land use. Geological maps show not only the surface, but characteristics of the underlying rock, fault lines, and subsurface structures. Choropleth maps use color hue and intensity to contrast differences between regions, such as demographic or economic statistics.

Wednesday, October 14, 2015

US Rail Map

6:42 AM    

LIFE AT THE SPEED OF RAIL - Van Alen Institute
LIFE AT THE SPEED OF RAIL - Van Alen Institute

US RAIL MAP | Map Of World
US RAIL MAP | Map Of World

Major Vulnerabilities to Railway Security
Major Vulnerabilities to Railway Security

US High Speed Rail Map
US High Speed Rail Map