Publishing BIM standards can facilitate the implementation of BIM construction projects. Their compilation, as in the article, allows to improve them, create or specify requirements. The publication of the international standard ISO 19650 for BIM resulted in numerous revisions to national guidelines. In the aspect of the degrees of detailing of BIM model is visible the development of their definition. Initially, they were divided according to the project phases, over time, into industries, and finally within the types of elements and separately for geometric and alphanumeric information, as well as the attached documentation. ISO 19650 uses the term Level of Information Need. Due to the quantity of global standards in various countries, the article focuses on the Oceania area and ISO 19650.
In Polish legal conditions, conducting a coherent policy within urban areas is still hindered. These areas are subject to dynamic processes of suburbanization. Suburbanization is defined as a result of migration from the city centers to the suburbs. The process results in deterioration of city centers and dynamic, often uncontrolled development of the suburbs (urban sprawl). During the period of intensive suburbanization, in the years 2000–2010 In agglomeration of Poznań, 65 000 new dwellings were built, among them 31 000,were located in Poznań county. There are no national law regulations (agglomeration law) concerning this problem, that forces local governments to act. Municipality, as the basic unit of local government in Poland has the largest authority in planning, it decides about land use and its management. Study of the Conditions and Directions of Spatial Management is an indirect tool that defines a general outline of planning policy of local governments. Local Spatial Management Plan is a main tool for forming land functions, development principles. Local Spatial Management Plan has to be consistent with the policy expressed in the Study of the Conditions and Directions of Spatial Management. Therefore, the more accurate the document is, the more consistent local spatial management plans are, which leads to a rational functioning and use of the environment. The main issue in the process of forming agglomeration structures is building a cohesion on a sub-regional level. One of the obstacles on the way of reaching that point are quantitative and qualitative differences in documents that sets the planning policy. The study shows that there are significant differences in this area, between communities of Poznań agglomeration. The differences occurs in the number of parameters relating to land development and building development indicators. In all analyzed cases, the most regulated sphere concerns housing, the least amount of guidelines relate to production and service functions. It seems that this issue can be a significant obstacle in the study of current conditions (lack of comparability), as well as in setting strategic directions for the agglomeration as an independent entity. The basic conclusion of the paper is that there is a need to develop an uniform methodology for planning for the creation of strategic planning documents for suburbs of agglomerations.
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