![]() The impacts of construction industry fragmentation are quite well known: poor design quality, lack of standards and constructability, suboptimal design solutions, high number of change orders, high rate of rework in design and construction, low value delivered for clients, design and construction delays and higher project costs. Integration between Design and Construction is a common topic discussed in the literature in construction. Possibilities of using city models without the need for completeness: solar radiation estimation, energy demand estimation, floor area determination, flight simulations, visibility analysis, shadow studies, noise propagation estimation, building registration, urban planning, green infrastructure planning, evacuation planning, radio wave propagation studies, flood studies. Or even an ex-post audit is appropriate: what impact has a particular investment had on the built environment. in case of demolition / reconstruction of a certain building / block of buildings what are the consequences of the modification of the settlement regulation plans (e.g.: the effect of several tall buildings, denser construction on the ventilation and sunbathing of the settlement part). District-level simulations are especially important in the case of urban decision support and urban planning, as this allows us to see in advance what is happening, e.g. In virtual space, a set of buildings composed of pre-defined and 3D model elements embodying real buildings, which virtual model can later be further shaped interactively and for many purposes, e.g. With the advent of computer 3D design, the requirements that form the basis of BIM (Building Information Modeling) appeared as early as the 1970s. INTRODUCTION The digitalization in the world offers more and more opportunities at a fast pace, which the developing construction industry should not miss. Tradition footprint-based extrusion was the best solution for complex building geometry.I. If you don't need such an accurate model, you can use it immediately by downloading it from CADMAPPER website. ![]() If data is available in geospatial format, Grasshopper + Meerkat was the most appropriate solution based on our research. ![]() As a result of the studies, it can be concluded that, on the basis of the time available and the content of the data, there are several possibilities for creating a fast city model in ArchiCAD. The site was based on the traditional extrusion from (exploded) site plan, the examination of items that can be downloaded from the CADMAPPER website, and an important part of the analysis of Rhino with Live Connection to ArchiCAD and the associated Grasshopper (Meerkat and Elk plugins). ![]() Given that GRAPHISOFT ArchiCAD is the most frequently used design software among architects in Hungary, present research aimes to explore and evaluate 3D modeling methods that allow the fast creation of city models in ArchiCAD software environment. However, our buildings (whether they are residential or public buildings) are typically cannot be interpreted without the conditions-the urban fabric-next to them, the modelling of which often places a considerable burden on architects. Model-based processes open up new opportunities in both design and decision support: engineers have been able to do various spatial tests and simulations. In the 1960s, the 3D-based design from the aviation and automotive industries has now fundamentally changed the construction industry too.
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