This paper aims to establish a methodology for urban land use planning and management that provides an insight into the hierarchy of priorities between a large number of activities for planning actions, thus contributing to the concept of energy-efficient housing. This methodology includes three aspects of sustainable development: Economic, ecologic, and social, which serve as an overall criterion within which urban planners could make assessments of planned activities. The assessments are the core of the methodology—every aspect is assessed by concerning its costs, consequences on the urban environment, and the effects on the citizens’ quality of life. Ten experts were involved to prove the methodology’s effectiveness. As a result, a hierarchy between the activities is created, which would help an urban planner prioritize and order further activities. The applicability of the hierarchy was tested through a simulation of a reconstruction process of a collective housing area in New Belgrade, Serbia, from the view-point of land use and accessibility. This methodology contributes to the creation of the prioritized groups of activities, and a finalized hierarchy of the activities, while its application is seen in the process of making urban plans, and defining recommendations for its implementation.

The significance of the goods and also the essence of their meaning are changed within the consumer society of the modern city - the symbol of goods is more important than their usefulness. Everything becomes subject to the logic of the commodity, and in these circumstances, the city treated as a commodity is becoming an object of consumption and thus, suffering changes. This process is supported by advertising and branding as modern societies' strategies, but also by the influence of the media in terms of imposing values ??and artificial creating of needs. The ascendancy of the visual, the dominance of signs and importance of advertising in modern society, have changed the architecture and the city. The city has become a flow of communication with consumers, and the architecture has become a tool for advertising. The advertisement on architecture has become a sign for the object of consumption where it is located. The building no longer has its own meaning. The sign as a modern means has replaced what used to be a means of communication with consumers. Communication which is performed through interaction with signs, becomes dominant feature in the space. Installation of advertisements over architecture in order to transfer the message to consumers, represents the dominance of signs in the space in relation to architecture. These signs make up the place. Global use of universally understandable vocabulary of advertising contributes that cities achieve global aesthetic uniformity. By acquiring commercial uniformity, objects lose their identity, and therefore the importance of a landmark in the city.

Radon is the most important of all sources of natural radiation, and it belongs to the main air pollutants in closed space. It is necessary to develop awareness of its harmful effects in buildings in order to take appropriate measures to reduce the risk of exposure to it. This study assesses public awareness of radon-related risks in Serbia by analyzing four areas: general public, legislative framework, professional practices, and student knowledge. Data were collected from media sources, legal documents, conferences and scientific publications, and surveys among students of University of Belgrade. Student answers have shown that they are not aware of the danger of radon in buildings: there is a gap between knowledge about radon and about its effects in the interior space. The results also show low presence of this topic in the media and in professional circles in Serbia. This paper is a contribution to the overall efforts to spread awareness in Serbia about the problem of the presence of radon in closed spaces and the health problems it can cause. This is also important in the context of the search for energy-efficient building solutions, where the passive house is emerging as the most sustainable form. It is a relatively new concept in Serbia, so information about the harmful effects of radon in indoor spaces and about the implementation of certain strategies in passive construction for protection against radon is necessary in order to protect the health of the environment and the population.

This paper deals with the problem of changes in the morphology of the city as a result of the influence of certain aspects of the phenomenon of consumerism. The focus of the analysis is a modern city in a cultural context that is understood as a consumer society. Morphological changes of the city are concerning the consequences of building of large consumption structures that are becoming new centers in the urban fabric, and also the changes that occur in the scenography of the city as a space for advertising. The first part of the paper describes the city as the context of the predominance of the symbolic value over usefulness of the goods, where city itself becomes a commodity that provides profit - the city as a center of consumption becomes the object of consumption. Special attention is directed to the inevitability of shopping as the most dominant consumption activity in creating urbanity, and to its informal nature and tendency to ocupy every available space. The second part describes the changes in the morphology of the city. The conclusion emphasizes the importance of the analyzed problem with regard to the scale of the changes that affect the city under the influence of consumption/shopping, as well as the possibility and the need for action in the direction of its controlled development in the city.

Walkability for non-motorized users is crucial for fostering inclusive, healthy, and sustainable communities. By prioritizing modern human-centered design principles, social equality is promoted for all categories of users, regardless of physical abilities or socio-economic status. Despite the importance of this indicator, a series of inconsistencies that produce inadequate and inaccessible urban space can still be observed in cities. The aim of this paper is to present the methodology for the calculation of the walkability index at the local level. This new methodological procedure considers walkability for pedestrians, with a special focus on people with reduced mobility. Based on specifically defined criteria, initial calculations were performed and integrated into the dynamic walkability index (DWI). One of the main advantages of this index is that it includes the dynamic component of the share of different categories of users in the total sample, which enables simple time modification without repeating the entire procedure. The developed methodology can be used as a tool for ranking existing street segments according to the urgency of reconstruction, while on the other hand promoting equality and inclusion of all categories of users in decision-making processes, thus creating more comfortable and safer environments.

Context: the modern city and the privatization of space that occurs as a consequence of the economic interest of dominant social groups that treat space as a source of capital in the capitalist system. The reduction of public space or its transformation into commercial spaces leads to the creation of new public spaces that are privately owned and with a controlled use regime, with the intention of taking over the role of social spaces. Focus: due to the need for new space because of constantly growing objects of consumption, virtual space as an extension of real space allows performing functions without exhausting physical space, but it also affects our understanding of sociality as it takes on the role of providing social interaction that is historically associated with the city square and streets as well as with the trade function. This paper is about the new social space, as well as the changes in physical space that occur in contemporary social circumstances of rapid technological development.