In this study, we investigated the modelling and optimization of drinking water supply system reliability in the village of Zaben, Czech Republic. An in depth overview of the water supply network in the municipality, passport processing and accident and malfunction recording is provided based on data provided by the owner and operator of the water mains as well as the data collected by our own field survey. Using the data processed from accident and failure reports in addition to water main documentation, the water supply network in Zaben was evaluated according to the failure modes and effects analysis methods. Subsequently, individual water supply lines were classified based on their structural condition. In addition, a proposed plan for financing the reconstruction of the water supply mains in Zaben was created. As such, this study provides an overall assessment of the water supply network in Zaben alongside a proposed plan for the structural restoration of the water supply system, which accounts for the theoretical service life of the system and the financial resources of the owner.

This article focuses on the information modeling of buildings and its subsequent extension to the information modeling of cities, which can be considered as the main topics of the construction industry development. It offers new knowledge for city management, facility management and other fields of construction sector. Information modeling of buildings and cities creates a suitable basis for the creation of various simulations (acoustic, thermal, environmental influence, sunlight or the spread of pollution) and analyses. Simulations and results obtained from them can help us in the decision-making phase, they predict problems or unexpected situations during the life cycle of cities and buildings, and thus make it possible to prevent their occurrence. In the second part of the contribution, an innovative model, the so-called R-WIM, is presented. BIM modeling methods were used for the research and extended to the public environment. The expansion of the public environment digitization enables to obtain a sufficient amount of information about the public space and then subsequently combine them with static weather data. This model deals with Urban Water Infrastructure with the focus on Rainwater Management and has been developed for the particular needs of individual municipalities in the process of solving problem situations associated with rainwater, which is very current due to climate change, and municipalities require appropriate tools to predict the behavior of rainwater so that various compensatory measures can be created.

The aim of this contribution is to present the R-WIM (Rainwater Information Management) tool, which was created based on an extensive database of territory parameters, weather, surface runoff, etc., and in accordance with the requirements of municipalities. This tool was created especially for the purpose of identifying places where it is appropriate to implement elements of blue-green infrastructure. This tool was created on the basis of the smart urbido s.r.o. software 2.0, which allows working with a wide range of graphic and non-graphic information so that it is possible to link them together functionally and computationally, and to model the necessary spatial phenomena within the environment of selected cities of the Moravian-Silesian Region of the Czech Republic.

The paper deals with the state of solution of rainwater management in the urbanized area. The paper describes development and basic principles of rainwater management, analysis of current state, climate change and last but not least, possible ways of rectifying and streamlining the current, nowadays inconvenient, facilities with an emphasis on their easy sustainability.

The sustainable development of settlements is increasingly linked to the development of information technologies, which can help identify critical and risky locations based on already detected information. By properly utilizing the advantages of individual systems, effective simulations can be created that will help municipal administrators ensure the expected quality of the environment or mitigate the impacts of the negative effects of the external environment. This article presents an example of the synthesis of several systems used in building information modeling and uses them for modeling and simulating external factors in the built environment. By appropriate application of the methods, places of interest that are affected by the negative effects of air flow, or the spread of pollution through the built environment, were illustratively visualized. The presented study was created based on publicly available data on air pollution in the territory of Ostrava city.

The paper deals mainly with relations of water between urbanized area and public space of settlements and their mutual influence. The article defines basic parameters and specifics of watercourses and water areas with a link to the built-up area, including evaluation of the current state of watercourses and areas in settlements and their interconnection.