What explains how often people travel to a particular place? Your intuition might suggest that distance is a key factor, but empirical evidence can help urban studies researchers answer the question more definitively. A new paper by an MIT team, drawing on global data, finds that people visit places more frequently when they have to travel shorter distances to get there. “What we have found is that there is a very clear inverse relationship between how far you go and how frequently you go there,” says Paolo Santi, a research…