0o S, Long. 100o S, Long. Long. 45o N 31. An example of return migration is someone moving back to their county of birth. Most migrants go only a short distance.
Most migration is rural to urban.
Planeville is located 100 miles away from Gibsonburgh. The breaking point between them is located 60 miles from Planeville and 40 miles from Gibsonburgh. Planeville s market area is smaller than Gibsonburgh s. The Generalissimo of Planeland is considering two highway-building proposals to connect up all three of the country's major cities. The builder-optimal plan involves building more total miles of road.