My+definition+of+urban+planning

Urban planning is the discipline that studies and develops ways to generate spaces that can fulfill a function in order to establish an organization system inside a territory. This system is supposed to make the everyday life easier and more enjoyable for the ones who live in this particular territory. As architecture, it combines design and engineering to build functional structures that follow some aesthetic lines.

It's very important to remember that, since urban planning is a social science, it evolves at the same speed as the culture in which it's practiced.