Why is it important for people to think about mass movement when they decide how to use land?

Why is it important for people to think about mass movement when they decide how to use land?

It is imperative and mandatory for mass movement when their is any decision on use of land, this comes in play as a result of modernization as rural places get developed it gives room for migration or mass movement which is a great factor that is considered when using land as it determines how, what, where to build and some other things included which makes it very important.