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TDWI Upside - Where Data Means Business

Data Stories: Map Projections, City Streets, and Mapping Time

Visualization and analysis tools give us new ways of looking at how space is represented.


The Size of Countries

Map Projections

You know projections that map the spherical Earth to a flat surface distort the apparent size of countries, but do you know by how much? These animated maps show how much the classic Mercator projection shifts a viewer’s perception.


What Can You Learn in a Mile?

City streets

This article describes how a tool for analyzing street maps can be used to generate these one-square-mile pieces of cities. Note the patterns that are more easily compared when examined at a consistent scale.


When Minutes Matter More than Miles

NYC in Timespace

Sometimes travel time is more important than physical distance. This blog post from Gradient Metrics experiments with methods for plotting Manhattan in time as well as space.

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