The land area of my big city is massive, so there is no risk of running out of land. The problem with that is the increases of traffic and commute times. The area where I live is also absolutely dominated by single family residences. Developers have been building 500+ houses per year in the 5 mile radius of my house over the last decade and space for more single family residences in this location is running out. Developers are turning from single family dwellings towards apartment complexes. The current residents in the area are strongly opposed to the development of multi family units that will only further congest already unbearable traffic conditions. The city had to widen roads to accommodate the rapidly growing population but keeps putting it off.