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Building Execution Plan as an effective document for Building Information Modelling
(Elsevier B.V, 2024-07-29) Sudakova, Katsiaryna; Remeš, Josef; Tichá, Alena
The use of Building Information Modelling (BIM) technology is recently becoming an increasingly influential factor in the successful completion of construction projects. Providing a wide range of technical enhancements to the design process (for example software for 3D modelling), BIM also offers a wide range of tools for managing construction projects. The goal of Building Information Modelling is to eliminate gaps in data transmission between different stages of the life cycle of a construction project. In this context, BEP, or BIM Execution Plan, is an essential document in the BIM concept. It functions as a tool for managing a project, both from the human resources perspective, such as meeting deadlines, and from the perspective of preserving and transferring graphical and non-graphical data of the project. Furthermore, it provides a detailed plan for building design, construction, and facility management, helping to ensure that all stakeholders are in line with the project’s goals. This article examines BEP as it evolves throughout various life cycle stages, from initial design and planning to construction and final delivery, exploring its potential in facility management.
Spatiotemporal Trajectories of Pedestrian Mobility at the Train Station: evidence of 24 million trajectories
(Springer Nature, 2024-11-20) Apeltauer, Tomáš; Uhlík, Ondřej; Apeltauer, Jiří; Juřík, Vojtěch
Understanding pedestrian movement remains crucial for designing efficient and safe transportation structures such as terminals, stations, or airports. The significance of conducting a granular analysis in pedestrian mobility dynamics research is evident in refining crowd behavior modeling. It is essential for gaining insights into potential terminal layouts, crowd management strategies, and evacuation procedures, all of which enhance safety and efficiency. In this context, we offer an original empirical dataset of more than 24,000,000 samples of trajectory spatial movement at traffic terminals in Havlíčkův Brod and Pardubice, Czech Republic. The dataset was collected using a high-resolution camera system installed at the railway station. Subsequently, algorithmic post-processing was applied to extract anonymous data on the spatial movement of recorded pedestrians. Thanks to this dataset, researchers can delve into the distances between pedestrians in a transportation terminal, considering factors such as group composition, group-to-group distances, and walking speed.
Virtual reality exposure effect in acrophobia: psychological and physiological evidence from a single experimental session
(Springer Nature, 2024-07-15) Varšová, Kristína; Szitás, Dagmar; Janoušek, Oto; Jurkovičová, Lenka; Bartošová, Kateřina; Juřík, Vojtěch
In recent years, virtual reality (VR) has gained attention from researchers in diverse fields, particularly in therapy of phobias. Currently, virtual reality exposure therapy therapy (VRET) is considered a promising cognitive-behavioral therapy technique. However, specific psychological and physiological responses of VR users to virtual exposure in such a context are still only vaguely explored. In this experimental study, we mapped VR exposure in a height environment in people with a moderate fear of heights–acrophobia. Thirty-six participants were divided into experimental and control groups–with and without psychological guidance during exposure. Participants' subjective level of anxiety was examined, and objective physiological response was captured via heart rate variability (HRV) measurement. Psychological assessments recorded an anticipated rise in participant anxiety following exposure to height; nevertheless, no distinctions were observed in self-reported anxiety concerning psychological guidance. Notably, objective physiological measures revealed that VR exposure prompts physiological responses akin to real-world scenarios. Moreover, based on the analysis of heart rate variability, participants who received psychological guidance were identified as better at compensating for anxiety compared to those without such support. These findings support VRET as a promising tool for psychotherapy and advocate for psychological guidance as beneficial in reducing anxiety and managing stress during exposure. The results may help improve our understanding of anxiety during exposure to phobic stimuli.
Neural Network-Based Train Identification in Railway Switches and Crossings Using Accelerometer Data
(Hindawi, 2020-11-24) Krč, Rostislav; Podroužek, Jan; Floriánová, Martina; Vukušič, Ivan; Plášek, Otto
This paper aims to analyse possibilities of train type identification in railway switches and crossings (S&C) based on accelerometer data by using contemporary machine learning methods such as neural networks. That is a unique approach since trains have been only identified in a straight track. Accelerometer sensors placed around the S&C structure were the source of input data for subsequent models. Data from four S&C at different locations were considered and various neural network architectures evaluated. The research indicated the feasibility to identify trains in S&C using neural networks from accelerometer data. Models trained at one location are generally transferable to another location despite differences in geometrical parameters, substructure, and direction of passing trains. Other challenges include small dataset and speed variation of the trains that must be considered for accurate identification. Results are obtained using statistical bootstrapping and are presented in a form of confusion matrices.
Perception of room mode damping from a musical perspective
(European Acoustics Association, 2024-01-17) Jun, David; Glorieux, Christ; Fišarová, Zuzana; Plášek, Josef; Rychtáriková, Monika
Undamped acoustic modes inside rooms - especially in small ones - are often responsible for a decreased acoustic quality, in particular when the rooms’ main function is ”critical listening” and/or ”playing musical instruments”. Mainly in the latter case, treatment with broadband absorption is not always efficient and yields either uneven or too short reverberation times. Rehearsal rooms are typical cases where the ”liveness” of the space needs to be guaranteed and putting a broadband absorber would make it ”too dry”.Rehearsal room design can be seen as a search for an optimal compromise between sound strength and reverberation time across the audible part of the spectrum. This contribution presents results from listening test experiments, in which the perception of modes was investigated, in particular with respect to what extent differences in axial room mode damping are audible.

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