Smoothing
At 5 km on a 20 km grid, a bar of 207 means 207 buildings in that cell. Widening the bandwidth spreads each facility across its neighbours. The slider goes to zero.
Density build · —
Every bar is 400 square kilometres of American land, raised by the number of data centers on it. Equal-area grid, so height means the same thing everywhere.
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Data centers sit in a few dozen squares of the country. The rest of the map is empty.
Three choices, not measurements.
At 5 km on a 20 km grid, a bar of 207 means 207 buildings in that cell. Widening the bandwidth spreads each facility across its neighbours. The slider goes to zero.
A market is a cluster: facilities within 22 km of another member, eight minimum. Clusters chain — Northern Virginia runs 116 km from the District through Loudoun County. Names come from each cluster's most common city.
Every cell covers 400 km², but equal area is not square: 22.8 by 17.5 km on the Gulf coast, 16.5 by 24.2 km at the Canadian border. A conic projection would leave cells 15° off north in Massachusetts. —
Every group of eight or more facilities within 22 km. Selecting a row lights it on the map.
| Market | States | Facilities | Share of U.S. | Span | Operators | Per 1,000 km² |
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