Assertion: gravity model | /r/CapableOf | anticipate migration
Facets:
value: between cities
type: LOCATION
Source sentences:
text: While the gravity model was created to anticipate migration between cities (and we can expect that more people migrate between LA and NYC than between El Paso and Tucson), it can also be used to anticipate the traffic between two places, the number of telephone calls, the transportation of goods and mail, and other types of movement between places.