This is a response to the need for up-to-date information about three major challenges posed by urbanization: buildings, transportation, and land use. Planning the built environment involves integrating all aspects of human life so that an esthetic, economic, and sustainable system is established. There are challenges which arise from this, but the primary goal is to provide adequate, safe, efficient, and affordable housing for the populations. The goal is to convert chaos to order, to make cities workable, to bar bad development, to encourage the building of necessary facilities, and to improve land use.