Scientific American Simple Mathematical Law Predicts Movement in Cities around the World Northeastern University epidemiologist Sam Scarpino, who was not involved in the study, says models based on this new finding might better track that flow. For example, New York City residents are more likely to make short, frequent trips within their own borough (such as Manhattan or the Bronx) and fewer trips to a distant borough. […]
Scientific American Simple Mathematical Law Predicts Movement in Cities around the World Many researchers estimate travel with “gravity models,” which assume that movement between cities is proportional to their population sizes. But these models do not account for travel patterns within cities—information that is particularly critical in tackling disease transmission. Northeastern University epidemiologist Sam Scarpino, who was not involved in the study, says models based on this […]