Assessing quality of environment in urban patterns is an important and necessary issue in identifying quality condition of environment in old patterns of cities and making efforts to improve it as well as offering appropriate models for environmental quality for new developments which are formed through recognition and application of pre-planned designs and programs.The new and old urban patterns of Shiraz considering its specific characteristics in terms of environmental quality face some problems like security, access, density and traffic, health, aesthetics, and cheerfulness.
Examining and ranking the factors affecting the satisfaction of the citizens with quality of their environment has revealed that these factors in the two areas under study were to a large extent the same. It was also found out that the residents of the new urban patterns in comparison to those ones living in old urban patterns are more satisfied with quality of their environment. The research has also shown that in the three levels which were studied here (home, neighborhood and the city) both in the new and the old urban patterns the highest satisfaction rate was with the city scale and the least was with quality condition of environment in the scale of neighborhoods. It was also revealed that in the new urban pattern the socio–economic dimension and in the older one the perceived dimension were the most affecting factor in the satisfaction of the citizens with quality of their environment.
For a meticulous explanation of the subject the following hypotheses were considered:
-The satisfaction of citizens with quality of environment in the new and old urban patterns is the same.
-The factors involved in the formation of quality of environment in the new and old urban patterns are different.
For this reason assessing the satisfaction with quality of environment, valuing and ranking the factors involved, draws the attention of the decision takers, decision makers,