ABSTRACT
A good understanding of the principles and practices of urban planning requires the prefatory definition of certain terminology and an understanding of the basic concepts the terminology represents. In this respect, it should be noted that, for convenience, the older term city planning is sometimes used here in place of the newer term urban planning. Similarly, the term city is sometimes used interchangeably with the term urban area. The following definitions represent, in effect, very brief introductions to complex concepts that a variety of disciplines have developed concerning cities-and urban development. An awareness, if not a full understanding, of these concepts is essential to the practice of urban planning and to the truly professional practice of at least certain specialties of civil engineering.
