Text stimulus (flow-map): Two-layer flow map titled 'People and Resource Flows After a Storm.' Shown: three affected coastal towns and two inland support centers. Display details: solid arrows for 14,000 evacuees moving inland and dashed arrows for food, water, and medical supplies moving coastward. Labels: major flows and include separate legends for people and supply tonnage, north arrow, and 0-50 km scale bar.
What is the key directional relationship shown?