To what extent is P3DM feasible in densely populated areas?
Densely populated areas can be reproduced in 3-dimensional format at a scale, which meets the purpose of the exercise. 1:10,000-scale or larger would suffice for generating household level information. Densely populated areas are generally located in alluvial planes. Small-interval contour lines should be used to depict as many landmarks as possible. Horizontal and vertical scales should differ to enhance the perception of slope and evidence landmarks.
