Paper 2 · migration survey methodology
In presenting migration survey results, a map that uses arrows to show the origins and directions of people moving into a town is called a:
AChoropleth map showing settlement density by shaded zones
BDot map showing population distribution by dot count
CFlow map of migrant origins and directions
DIsoline map showing travel-time contours around the town
Explanation: A flow map uses arrows, often varying in width, to show the origin and direction of movement, which is exactly what is needed to display where migrants have come from and the routes of their movement into a town. Choropleth maps, dot maps and isoline maps display density, distribution and continuous surfaces respectively, not directional movement between places.
Derived from ZIMSEC Geography Paper 2, June 2004, Q2
