Traffic ebbs and flows, populations shift (in composition and location), goods move in different directions — and not just week-to-week or day-to-day, but hour-on-hour. My cabbie had a few ideas on how to capitalize on all this, and so do urban theorists. But I could stand to hear a few more …
Observation Deck: How Time Affects Urban Maps
It’s not enough to know where things are, because cities change throughout the day.
