scholarly journals EXTENDING INDOOR OPEN STREET MAPPING ENVIRONMENTS TO NAVIGABLE 3D CITYGML BUILDING MODELS: EMERGENCY RESPONSE ASSESSMENT

Author(s):  
F. Fadli ◽  
N. Kutty ◽  
Z. Wang ◽  
S. Zlatanova ◽  
L. Mahdjoubi ◽  
...  

<p><strong>Abstract.</strong> Disaster scenarios in high-rise buildings such as the Address Downtown, Dubai or Grenfell Tower, London have showed ones again the importance of data information availability for emergency management in buildings. 3D visualization of indoor routing services using extensive and high quality geographic data sources is essential for spatial analysis in emergency responses. In order to facilitate emergency response simulations, a combination of geometrical, graphical and semantic information is essential. Successful and efficient emergency evacuation responses is facilitated by the availability of both digital static and dynamic information of the incident site. However, interruptions may be encountered with the availability of dynamic data, where static data developed using indoor navigation ontologies serve as an alternative to inform the first responders. Thus, it is necessary to obtain a firm, interactive and quasi-realistic virtual simulation of the building environments. Voxelized CityGML models imported into voxel based hazard simulation systems fits well into the simulation algorithm requirements (Groger et al., 2008; Moreno et.al, 2010). Therefore, the research investigates an alternative platform for generating CityGML spatial analysis models. LoD4 models are developed using Computer Aided Design (Auto CAD) 2D files, crowdsourced geo-data (OpenStreetMap) and open source tools. A combination of software packages is utilized for 3D reconstruction of building interiors. This process is achieved through a Java application developed by researchers at Heidelberg University. Conclusions drawn from the research validate the 3D CityGML model generation process as an international standard to effectively enhance the outcome of emergency evacuation simulations of high rise buildings.</p>

2020 ◽  
Vol 20 (3) ◽  
pp. 1-21
Author(s):  
Farid Wajdi Akashah ◽  
Timothy Kurannen Baaki ◽  
Muhammad Firdaus Anuar ◽  
Nur Farhana Azmi ◽  
Zahiriah Yahya

This study examined the evacuation strategies employed in high-rise buildings as well as determined factors influencing decision making in employing evacuation strategies in four selected high-rise buildings in Kuala Lumpur, Malaysia. Through a case study evaluation involving interviews with facility/building managers, walk through observations of the case studies and analyses of evacuation exercise reports, the study found that total evacuation was the most practiced evacuation strategy with occasional phased evacuation at one of the case studies. The study identified reliable emergency response, building characteristics/fire safety features, and evacuation exercise as the most important factors influencing decision making in employing evacuation strategies. Occupant characteristics was found to be the least important factor. The argument is that, efficient emergency response, passive and active fire safety systems, and evacuation exercise routines mean that challenges posed by the characteristics of occupants could be overcome. This paper gives new insights on factors influencing decision making in employing suitable evacuation strategies. This would benefit stakeholders e.g. building owners, facility managers, health and safety managers when drafting business continuity plans.


1993 ◽  
Vol 1 (1) ◽  
pp. 109-123 ◽  
Author(s):  
Roger Brunet

2021 ◽  
pp. 183693912110501
Author(s):  
Anne-Marie Morrissey ◽  
Deborah Moore

This conceptual model paper uses systems theory to explain how key elements in the Australian policy and regulatory context lead to three issues of concern in childcare centre physical environments: siting of centres on busy roads; lack of outdoor space; and, emergency evacuation in high-rise buildings. Drawing on evidence from prior studies and policy documents through desktop research, as well as childcare centre visits and communications with stakeholders and experts, we confirmed these issues as threats to children’s health, safety, development and well-being. Adapting Goekler’s ‘iceberg model’ of systems theory, we identified a dominance of commercial childcare property interests and complex and conflicting policy and regulatory structures, as explanatory elements leading to outcomes that conflict with children’s best interests.


Author(s):  
A. Abraham ◽  
S. Chitra Ganapathi ◽  
G. Ramesh Babu ◽  
S. Saikumar ◽  
K. R. S. Harsha Kumar ◽  
...  

Author(s):  
Wenbo Jiang ◽  
Yuan Zhang

The development of computer technology has reshaped the form and philosophy of landscape design, as evidenced by the growing importance of computer-aided design (CAD) in this area. This paper attempts to apply 3D visualization in the teaching of landscape design. For this purpose, three CAD teaching tools were selected, namely, AutoCAD, 3D Max and SketchUp, and subjected to theoretical analysis and teaching practice. The research results show that AutoCAD can guide the landscape design teaching from conception to positioning, 3D Max can upgrade the teaching form from 2D to 3D in the later phase, and SketchUp sup-ports the entire process of landscape design. In addition, the author summarized the specific process of supporting landscape design teaching with SketchUp. This research enriches the results on the application of CAD in landscape design teaching and has certain theoretical and practical significance.


2019 ◽  
pp. 1-10
Author(s):  
Glenn Hedman ◽  
Jay Mehta ◽  
Steven Lavender ◽  
Paul Reichelt ◽  
Karen Conrad ◽  
...  

Author(s):  
Olufunmilola Atilola ◽  
Julie Linsey

AbstractMany tools are being developed to assist designers in retrieving analogies. One critical question these designers face is how these analogues should be represented in order to minimize design fixation and maximize idea generation. To address this question, an experiment is presented that compares various representations' influence on creativity and design fixation. This experiment presents an effective example (analogue) as computer-aided design (CAD), sketch, or photograph representations. We found that all representations induced fixation, and the degree of fixation did not vary significantly. We also found that CAD representations encourage engineering designers to identify and copy the key effective features of the example. CAD and photo representations also produced a higher quality of design concepts. Results from this experiment offer insights into how these various representations may be used in examples during idea generation; CAD representations appear to offer the greatest advantages during the idea generation process. The results from this experiment also indicate that analogical databases of effective design examples should include CAD and photolike images of the analogue rather than sketches.


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