Settlements of any size and type can always be formally synthesized by their patterns, so it means pattern identify the settlements. Town houses in gridiron blocks, high-rise office structures, academic campuses, suburban estates, and highway retail sprawl are good examples.
Urban form, then, is a result of the bringing together of many elements in a composite totality:the urban pattern. Patterns are the outstanding formal features of urban areas. A pattern can be defined as an elaboration of form that results from a composition of parts. Thus, patterns assume complex characteristics based on their formal elaboration; they also assume some degree of universality, since the total pattern can be represented by a sector. For example, an identifiable area in a city, or village can be best understood through a typical sector showing circulation, buildings, and open spaces; this typical sector ‘represents’ the formal characteristics found throughout the area and thus acquires some ‘universality.’ Patterns have the potential of carrying powerful formal syntheses or visual codes over a geographic space. Formally, cities have a greater similarity to rugs and carpets than to other design products, with intricate motifs covering thier surfaces and various combinations of patterns complementing one another. Patterns are the physical expression of an underlying, continous formal system. Their visual essence lies in the complexity of a number of interrelated motifs, rather than in the total composition, since patterns are fragments or parts of a continuum and not totalities. Patterns can be conceptualized as models of field designs that can be extended over geographic space. They are reflecting the impact of a society on the earth, through the imposition of their cultural artifacts of shelter and movement. Clearly, urban patterns do change from one sector of a city to another, according to location in the city and time of development. The