A subway map of the gastric system. Back in New York this weekend, I started paying attention more to the subway system map. Even after years away, I rarely need to check it, because its connections ...

Transit aficionados have long been enamored with the various redesigns, reformats and debates around improving our subway maps—whether they're geographically-oriented, smooth, colorful, or historical ...

As the world’s biggest cities become increasingly populous, demand for capacity on underground metro networks has also skyrocketed. As metros mutate and change shape, the transit maps that serve them ...

Some cultural debates are lodged into our collective consciousness: Beatles versus Stones, “Star Trek” versus “Star Wars,” Coca-Cola versus Pepsi. For New York City transit buffs, it's about which ...

Each metro line usually has its own color on the map. For obvious reasons, these colors should be maximally different. Suppose a new metro line is built. We now explain a strategy to choose the color ...