Extending indoor open street mapping environments to navigable 3D citygml building models: Emergency response assessment

© Authors 2018. 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

3D GEOSPATIAL INDOOR NAVIGATION FOR DISASTER RISK REDUCTION AND RESPONSE IN URBAN ENVIRONMENT

Disaster management for urban environments with complex structures requires 3D extensions of indoor applications to support better risk reduction and response strategies. The paper highlights the need for assessment and explores the role of 3D geospatial information and modeling regarding the indoor structure and navigational routes which can be utilized as disaster risk reduction and response strategy. The reviewed models or methods are analysed testing parameters in the context of indoor risk and disaster management. These parameters are level of detail, connection to outdoor, spatial model and network, handling constraints. 3D reconstruction of indoors requires the structural data to be collected in a feasible manner with sufficient details. Defining the indoor space along with obstacles is important for navigation. Readily available technologies embedded in smartphones allow development of mobile applications for data collection, visualization and navigation enabling access by masses at low cost. The paper concludes with recommendations for 3D modeling, navigation and visualization of data using readily available smartphone technologies, drones as well as advanced robotics for Disaster Management

Design of the new structure and capabilities of LADM edition II including 3D aspects

The decision to refine the existing content and to extend the scope of Edition I of the ISO 19152:2012 Land Administration Domain Model (LADM) is a response to requests from the international Land Administration (LA) community. This response has to be formally organised in accordance with ISO guidelines. This begins with gathering feedback from ISO/TC 211 Member States on the need for updated and enhanced capabilities of the LADM. In addition, several proposals have been made to extend the scope of the LADM Edition I. After analysing the feedback received, it was proposed to develop the LADM Edition II as a multi-part standard: Part 1 — Generic conceptual model, Part 2 — Land registration, Part 3 — Marine georegulation, Part 4 — Valuation information, Part 5 — Spatial plan information and Part 6 — Implementation aspects. In other words, Edition I focuses on land tenure, while the design and development of Edition II is based on the inclusion of rights, restrictions and responsibilities (RRRs) concerning marine georegulation, valuation information, spatial plan information as well as LADM implementation. 3D representations are relevant for all parts.This paper focuses on the design of the new structure of the second edition of the LADM and on the (operational) capabilities of this new edition in relation to the LA issues in Parts (standards addressing a specific part of the scope) and Packages (groups of conceptually close classes), with a particular attention to the requirements and design related decisions taken in the revision process. The parts 1, 2, 4 and 5 are the parts in which the authors are currently involved. Part 1 will be a high-level umbrella standard; Part 2 is largely based on LADM Edition I and focuses on land registration, with an enhanced support on the surveying functionality, including new subclasses of spatial unit, and extended 3D spatial profiles. Part 3 harmonises the description of RRRs and aligns land concepts with marine aspects from the marine domain based on the International Hydrographic Organisation (IHO) S121 Maritime Limits and Boundaries Product Specification. Part 4 deals with valuation information used and produced in the context of land administration, while Part 5 deals with spatial planning information and includes the planned use of the land (zoning), resulting in RRRs. Lastly, Part 6 is planned to be about implementation of the LADM and will be developed in close collaboration with the Open Geospatial Consortium (OGC)

Supporting Indoor Navigation Using Access Rights to Spaces Based on Combined Use of IndoorGML and LADM Models

The aim of this research is to investigate the combined use of IndoorGML and the Land Administration Domain Model (LADM) to define the accessibility of the indoor spaces based on the ownership and/or the functional right for use. The users of the indoor spaces create a relationship with the space depending on the type of the building and the function of the spaces. The indoor spaces of each building have different usage functions and associated users. By defining the user types of the indoor spaces, LADM makes it possible to establish a relationship between the indoor spaces and the users. LADM assigns rights, restrictions, and responsibilities to each indoor space, which indicates the accessible spaces for each type of user. The three-dimensional (3D) geometry of the building will be impacted by assigning such functional rights, and will provide additional knowledge to path computation for an individual or a group of users. As a result, the navigation process will be more appropriate and simpler because the navigation path will avoid all of the non-accessible spaces based on the rights of the party. The combined use of IndoorGML and LADM covers a broad range of information classes: (indoor 3D) cell spaces, connectivity, spatial units/boundaries, (access/use) rights and restrictions, parties/persons/actors, and groups of them. The new specialized classes for individual students, individual staff members, groups of students, groups of staff members are able to represent cohorts of education programmes and the organizational structure (organogram: faculty, department, group). The model is capable to represent the access times to lecture rooms (based on education/teaching schedules), use rights of meeting rooms, opening hours of offices, etc. The two original standard models remain independent in our approach, we do not propose yet another model, but applications can fully benefit of the potential of the combined use, which is an important contribution of this paper. The main purpose of the combined use model is to support the indoor navigation, but could also support different applications, such as the maintenance and facility management work, by computing the cleaning cost based on the space floor area. The main contributions of this paper are: a solution for the combined use of IndoorGML-LADM model, a conceptual enhancement of LADM by the refinement of the LA_Party package with specialization for staff and student (groups), and the assessment of the model by converting sample data (from two complex university buildings) into the model, and conducting actual access-rights aware navigation, based on the populated modelOLD Department of GIS TechnologyUrban Data Scienc

Inclusão de aspectos semânticos no padrão IndoorGML a partir da definição de pontos de referência

Orientador(a): Prof(a). Dr(a). Luciene Stamato DelazariTese (doutorado) - Universidade Federal do Paraná, Setor de Ciências da Terra, Programa de Pós-Graduação em Ciências Geodésicas. Defesa : Curitiba, 30/09/2021Inclui referências: p. 143-160Resumo: A navegação em ambientes indoor é uma tarefa complexa que pode ser facilitada através do uso de sistemas de navegação indoor. O emprego de pontos de referência nesses sistemas traz vantagens, pois reduzem a carga cognitiva sobre o usuário, o que pode ser benéfico para a compreensão do ambiente, posicionamento e navegação. Esta pesquisa tem por objetivo avaliar como os pontos de referência impactam na percepção espacial dos usuários, ao empregar esses elementos nos sistemas de navegação indoor, seja na representação do ambiente ou na descrição de rotas. Esta pesquisa também apresenta a proposição de melhorias para o IndoorGML ao fornecer um enriquecimento semântico para auxiliar a navegação através da inclusão de especificações a respeito de pontos de referência. Apesar do IndoorGML fornecer ampla definição sobre a estrutura dos espaços indoor, os pontos de referência, sejam eles ambientes ou elementos, estão fora do escopo. A ausência de informações desses elementos no espaço indoor acarreta na limitação de implementação e usabilidade do padrão. A pesquisa contou com dois testes, sendo o primeiro voltado para a avaliação a hierarquia visual da simbologia ao combinar no mesmo mapa símbolos pictóricos e geométricos. O segundo teste consistiu na análise da simbologia que empregava apenas símbolos pictóricos com a hierarquia visual sendo gerada por símbolos de tamanhos distintos. No segundo teste quatro cenários foram testados, sendo que em cada um deles as instruções de rota empregavam diferentes elementos, como informações métricas, relações espaciais, marcos de referência ou pontos de interesse. Baseado nos resultados encontrados nos testes, a proposição de extensão do IndoorGML foi realizada. Os resultados obtidos nos testes realizados apontam que os SRP, sejam eles MR ou POI, são utilizados pelos usuários com frequência e auxiliam nas tarefas de navegação quando empregados na descrição de rota. Além disso, a simbologia quando empregada de forma a destacar os elementos principais do ambiente também dão suporte a orientação e navegação, pois facilita a relação do ambiente apresentado no mapa com o ambiente real. O modelo de extensão proposto solucionou problemas existentes no módulo principal, entretanto diferentes casos de usos devem ser testados para confirmar sua eficácia.Abstract: Indoor navigation is a complex task that can be facilitated through the use of indoor navigation systems. The use of reference points in these systems brings advantages, as they reduce the cognitive load on the user, which can be beneficial for understanding the environment, positioning and navigation. This research aims to evaluate how reference points impact the spatial perception of users, when using these elements in indoor navigation systems, either in the representation of the environment or in the description of routes. This research also presents the proposition of improvements to IndoorGML by providing a semantic enrichment to aid navigation through the inclusion of specifications regarding reference points. Although IndoorGML provides a broad definition of the structure of indoor spaces, the reference points, be they environments or elements, are out of scope. The lack of information on these elements in the indoor space limits the implementation and usability of the standard. The research included two tests, the first being aimed at evaluating the visual hierarchy of symbology by combining pictorial and geometric symbols on the same map. The second test consisted of analyzing the symbology that used only pictorial symbols with the visual hierarchy being generated by symbols of different sizes. In the second test, four scenarios were tested, in each of them the route instructions used different elements, such as metric information, spatial relationships, landmarks or points of interest. Based on the results found in the tests, the IndoorGML extension proposition was carried out. The results obtained in the tests carried out indicate that the SRP, whether MR or POI, are frequently used by users and help in navigation tasks when used in the route description. In addition, the symbology, when used in order to highlight the main elements of the environment, also support orientation and navigation, as it facilitates the relationship between the environment shown on the map and the real environment. The proposed extension model solved problems existing in the main module, however different use cases must be tested to confirm its effectiveness