【正文】 hief target is to provide a good place of shopping and recreation for various strata of society. After the feasibility study， Huayuan Real Estate Co., Ltd. also worked out the annual revenue of normal operation of all kinds of facilities of amusement and sanitation, and reckoned up the profiting prospect of the project, including the internal rate of return, the recovery period of investment, the repaying period and so on. The conclusion is as follows： The project has a very good market prospect， hopeful to get a remarkable economic benefit， and at the same time, the green square overground will also bee a symbolic square of Beijing City. It can be seen that the feasibility study of Xidan Culture Plaza analyzed the profiting potentials of the underground part of the project, and thus it created conditions for the development of the public space overground. On the other hand, the development of the ground environment played a further promoting role to the flourishing of the mercial services underground. In different types of projects， the feasibility study should also cover many other aspects such as technology, anization, society and so on, in addition to economy. For example, in the construction of a large building, the technical feasibility should be taken into consideration。 Investigate the social and humane environment， including the economic environment, investment environment, technological environment, population structure, culture position, way of life and so on；Investigate natural material environment such as geography, geology, landform, water sources, energy source, climate, sunshine and so on。 And, with the starting of the concrete project, the guide rule of the last phase will bee the policy document for the programming of the concrete project, so the concrete project will start from the phase of general plan of this level, and gradually go deeper, through all the phases. The general planning phase is to center around the setting of the strategic objective, consider all factors such as the society, economy, culture, geography and so on, and make overall scheming of the whole project. The general plan is to turn the construction idea into systematic actions with clear definition, clear system, specific targets and reasonable operational philosophy, whose oute is the plan or the outline. That is to say, the central task of the planning is, by systematic analysis and scheming of the project, to realize allround control over the whole process of the project, with a clear target, a clear plan and concrete steps. According to the characteristics of Chinese urban planning, we think, the overall scheming should basically go by the following steps. Making for the Fundamental Target In the general plan phase, we should set the goal of activities in accordance with the major problems of the area or place and the preliminary ideas on those problems, think up the system framework of the activities on such a basis, so as to lay a foundation for the decision making and guide the whole process of practice. In the setting of the target, we should try to solve the following problems： I． Reasons for Starting the Project. Consider the major problems confronted, and list the key issues. II． Requirements of the Project. Analyze the requirements of the project in accordance with the status quo and the problems, including requirement in function and mode of use and so on. III． Exterior Constraint Conditions. Investigate all the relevant constraint conditions in legislation, laws, regulations and norms。an Street, which has played a very important role for the adjustment and improvement of the space structure of inner Beijing. However, in China， professional institutions do not have a proper status in decision making, the process of decision making lacks exterior restrictions, so the direction cannot be well controlled from the basic target, which often results in blindness in decision making. In Shanghai, there is a very typical example. When the leaders from the central government visited the construction of the bridge roads of Shanghai, they criticized the bridge roads as a forest of concrete. Thus, the municipal government decided to build a large green area of 23 hectares at the inter junction between Chengdu Road and Yan39。 Terreno blocks， one design office was in charge of the urban design plan， and many offices participated in the architectural design together. It is a flexible arrangement in accordance with the condition, construction scale, contents of project of each block itself. In the operational mechanism of the urban design activity, there is no fixed mode, either. A. Rowley thinks, the quality of urban design is the product of conscious and unconscious decisions of various individuals with different interestsiv. For example, the urban design plan of San Francisco stressed that it was necessary to mobilize the strength of both the public and the private at the same time to meet people39。 under the mittee, there were some offices, which also included managerial personnel and technical personnel. The coordination mittee was the coordinator of the entire undertaking. First of all, it should finish the work of the earlier stage， including setting of the basic tasks and objects of the Olympic programming, clarifying the requirements of the Olympic Games for the athletic fields and halls and the hosting city, doing investigation on the present sports facilities of Beijing, setting the sites and making preliminary plans, doing multipurpose decision making, and so on. In the further siting analysis， the coordination mittee was responsible for the following matters：To make the working scheme, anize the planning work, collect programs, arrange for the bidding of the program, report to the municipal government and higher policymaking bod