Dan Phiffer Dan Phiffer is an Internet enthusiast based in Troy, NY


Grid Corrections shows, as Curt Meine puts it, “places where theory and reality meet.”

Geoff Manaugh, writing for Travel + Leisure:

De Ruijter soon learned that these kinks and deviations were more than local design quirks. They are grid corrections, as he refers to them in a new photographic project: places where North American roads deviate from their otherwise logical grid lines in order to account for the curvature of the Earth. You could drive out there your whole life, de Ruijter realized, and not realize that certain stop signs and intersections exist not because of eccentric real estate deals, but because they are mathematical devices used to help planners wrap a rectilinear planning scheme onto the surface of a spherical planet. In order to avoid large-scale distortion, the Jeffersonian grid—shorthand for the founding father’s 18th-century geometric vision of six-square-mile township parcels, intended to guarantee equal and democratic land-distribution nationwide—is occasionally forced to go askew.


The world is weird and wonderful!

A tile mural at the 36th Street subway station in Sunset Park.

I wrote a post over on the Mapzen blog that I think came out nicely.

The territory means different things to different people. Depending on your perspective, the kinds of data that are captured about places may be missing, insufficient, or downright hostile. Who’s On First is opinionated—like all datasets, no collection is truly unbiased—but we hope to be aware of when we’re asserting our own opinions about places and create a framework where a polyglot of place-feels will be welcome.

The multifaceted maps we make simply reflect the weird and wonderful territory they represent.

I’m going to be adapting this as a talk at csv,conf. If you’ll be in Portland May 3, come out and say hello. (Bring your CSVs!)