Combining dynamic city sensors to build a three-dimensional thermal environment cloud information system for smart cities

Impact ◽  
2020 ◽  
Vol 2020 (6) ◽  
pp. 26-28
Author(s):  
Kochiu Wu
Keyword(s):  
Information System ◽  
Urban Areas ◽  
Chinese Culture ◽  
Energy Savings ◽  
Thermal Environment ◽  
Smart Cities ◽  
Three Dimensional ◽  
Policy Makers ◽  
University Of Technology ◽  
New Information

Professors Ko-Chiu Wu, Chih-Hong Huang and Hsiao-Tung Chang from the National Taipei University of Technology and Chinese Culture University are combining dynamic city sensors to build a 3D thermal environment cloud information system for smart cities. They seek to uncover new information about urban heat island (UHI) by describing the dynamic phenomena underway. The ultimate aim of this study is to survey the thermal environment data in the horizontal and vertical interspace of urban areas. The data and insight the team gathers will be extremely useful to policy makers and city planners, as well as designing urban spaces with the comfort of citizens in mind, it is hoped they will be able to mitigate the effects of UHI and even make energy savings using the 3D maps.

scholarly journals Smart Cities in Turkey: Approaches, Advances and Applications with Greater Consideration for Future Urban Transport Development

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2308 ◽  
Author(s):  
Can Bıyık
Keyword(s):  
Urban Areas ◽  
Planning Process ◽  
Smart Cities ◽  
Radical Change ◽  
Urban Transport ◽  
Transport Systems ◽  
Structured Interviews ◽  
Policy Makers ◽  
Comprehensive Survey ◽  
Future Vision

The smart city transport concept is viewed as a future vision aiming to undertake investigations on the urban planning process and to construct policy-pathways for achieving future targets. Therefore, this paper sets out three visions for the year 2035 which bring about a radical change in the level of green transport systems (often called walking, cycling, and public transport) in Turkish urban areas. A participatory visioning technique was structured according to a three-stage technique: (i) Extensive online comprehensive survey, in which potential transport measures were researched for their relevance in promoting smart transport systems in future Turkish urban areas; (ii) semi-structured interviews, where transport strategy suggestions were developed in the context of the possible imaginary urban areas and their associated contextual description of the imaginary urban areas for each vision; (iii) participatory workshops, where an innovative method was developed to explore various creative future choices and alternatives. Overall, this paper indicates that the content of the future smart transport visions was reasonable, but such visions need a considerable degree of consensus and radical approaches for tackling them. The findings offer invaluable insights to researchers inquiring about the smart transport field, and policy-makers considering applying those into practice in their local urban areas.

scholarly journals The Puzzling Concept of Smart City in Central and Eastern Europe: A Literature Review Designed for Policy Development

2020 ◽  
pp. 70-87
Author(s):  
Bogdan-Constantin Ibănescu ◽  
Alexandru Bănică ◽  
Mihail Eva ◽  
Alexandra Cehan
Keyword(s):  
Eastern Europe ◽  
Smart City ◽  
Urban Areas ◽  
Policy Development ◽  
Central And Eastern Europe ◽  
Smart Cities ◽  
Business Environment ◽  
Modern Concept ◽  
Policy Makers ◽  
Strategic Approach

The modern concept of smart city rose from a relatively ambiguous term dealing with the future of urban areas to one of the most popular contemporary fields of research. Tackling a considerable range of topics from digitalization, citizen involvement, sustainability or governance, it managed to rapidly attract both academics and policy-makers. This study reviews the research papers published on smart city concept with application to European Union, and especially to the new member states from Central and Eastern Europe. The results indicate many common features of smart cities in EU, but also some peculiarities of CEE in this regard, many deriving from their socialist inheritance. Meanwhile, it can be noticed the rather incipient status of smart cities approaches, the insufficient resources allocated by local authorities, which rely extensively on EU funding, the lack of awareness from citizens and the lack of a comprehensive and structured strategic approach. In order to tackle the abovementioned issues, our paper suggests a series of measures and directions for policy-makers, local administrations and business environment.

scholarly journals Shaping up the Future Spatial Plans for Urban Areas in Pakistan

2020 ◽  
Vol 12 (10) ◽  
pp. 4216 ◽  
Author(s):  
Muhammad Qadeer ul Hussnain ◽  
Abdul Waheed ◽  
Khydija Wakil ◽  
Christopher James Pettit ◽  
Ejaz Hussain ◽  
...  
Keyword(s):  
Urban Areas ◽  
Spatial Planning ◽  
Smart Cities ◽  
Poor Performance ◽  
Scenario Planning ◽  
Policy Makers ◽  
Urban Settlements ◽  
Major Factors ◽  
Plan Making ◽  
Spatial Plan

Since 2007, more than fifty percent of our planet’s population is living in urban areas. In the coming decade, the rate of urbanization will be fastest in Asia and Africa. Within South Asian countries, urbanization has attained its fastest pace in Pakistan. Urban planners and agencies in Pakistan have tried various spatial plan making solutions to manage urban areas, but none have given the desired results. After a 20% increase in declared urban areas within last two decades, urban planners and policy makers are looking for a more innovative and realistic spatial planning solution, which could adjust to the uncertainties and complexities of real world. This research uses a mixed method approach comprising a two phased survey of professional planners, analyzed through the selective lexicon approach to document planners’ opinions about the reasons behind the poor performance and conformance of spatial plans. This study documents the planners’ understanding of the contemporary concept of ‘scenario planning’. To explore the solution, this paper presents a semi-systematic review of the literature on the application of the ‘scenario method in urban spatial planning’. As a result of this research, a comprehensive digital inventory of all spatial plans ever made in Pakistan has been developed. It has been found that 83% of the urban settlements in Pakistan are growing without a spatial plan and require immediate attention. Furthermore, in terms of the plan making process, twenty-seven major factors contributing to the failure of past plans have been identified and categorized under seven distinct plan making stages. Finally, a new process of spatial plan-making has been proposed, which is the fusion of scenario planning and the traditional plan-making process, backed by digital planning tools. In an era of smart cities and digitization, it is expected that the advancements in scenarios planning, coupled with a new data portal, will assist in addressing the implementation gap in practice, and result in more comprehensive data-driven spatial plans.

scholarly journals Smart governance of urban data

2021 ◽  
Vol 301 ◽  
pp. 05005
Author(s):  
Jing Wang ◽  
Dang Que Nguyen ◽  
Tatiana Bonkalo ◽  
Oleg Grebennikov
Keyword(s):  
Big Data ◽  
Urban Areas ◽  
Smart Cities ◽  
Reference Points ◽  
Data Driven ◽  
New Paradigm ◽  
Policy Makers ◽  
Intelligent City ◽  
Smart Governance ◽  
Urban Data

This paper focuses on the smart governance of urban data. Recently, the idea of an intelligent city has gained increased attention among technologists, urban scientists, stakeholders, companies and policy makers in the last decades. The new paradigm of the cities in the 21st century and what it entails is seen by everyone, including the authors of this article, as a viable response to the unprecedented rate of urbanization most nations are experiencing. Advanced smart cities are beginning to go beyond infrastructure and to use big data. The whole idea behind smart cities is to harness intelligent technologies and data-driven contextual governance models to mitigate and prevent the challenges that arise when an estimated 2 billion people move to urban areas. This is why collecting and analysing urban data becomes a key priority in this field. The development of Big Data analysis using the Artificial Intelligence (AI) becomes the domain of urban governments and stakeholders. This research contemplates over these issues and provides many examples from around smart cities around the world that can be used as reference points or inspiration for the policy-makers engaged in the smart city governance and urban planning.

scholarly journals Detailed Streetspace Modelling for Multiple Applications: Discussions on the Proposed CityGML 3.0 Transportation Model

2020 ◽  
Vol 9 (10) ◽  
pp. 603
Author(s):  
Christof Beil ◽  
Roland Ruhdorfer ◽  
Theresa Coduro ◽  
Thomas H. Kolbe
Keyword(s):  
Urban Areas ◽  
Smart Cities ◽  
Three Dimensional ◽  
Data Availability ◽  
Minor Role ◽  
Extensive Literature ◽  
Transportation Model ◽  
Potential Applications ◽  
A Minor ◽  
City Models

In the context of smart cities and digital twins, three-dimensional semantic city models are increasingly used for the analyses of large urban areas. While the representation of buildings, terrain, and vegetation has become standard for most city models, detailed spatio-semantic representations of streetspace have played a minor role so far. This is now changing (1) because of data availability, and (2) because recent and emerging applications require having detailed data about the streetspace. The upcoming version 3.0 of the international standard CityGML provides a substantially updated data model regarding the transportation infrastructure, including the representation of the streetspace. However, there already exist a number of other standards and data formats dealing with the representation and exchange of streetspace data. Thus, based on an extensive literature review of potential applications as well as discussions and collaborations with relevant stakeholders, seven key modelling aspects of detailed streetspace models are identified. This allows a structured discussion of representational capabilities of the proposed CityGML3.0 Transportation Model with respect to these aspects and in comparison to the other standards. Subsequently, it is shown that CityGML3.0 meets most of these aspects and that streetspace models can be derived from various data sources and for different cities. Models generated compliant to the CityGML standard are immediately usable for a number of applications. This is demonstrated for some applications, such as land use management, solar potential analyses, and traffic and pedestrian simulations.

scholarly journals VIRTUAL TOURS FOR SMART CITIES: A COMPARATIVE PHOTOGRAMMETRIC APPROACH FOR LOCATING HOT-SPOTS IN SPHERICAL PANORAMAS

2019 ◽  
Vol XLII-2/W9 ◽  
pp. 347-353 ◽  
Author(s):  
R. Feriozzi ◽  
A. Meschini ◽  
D. Rossi ◽  
F. Sicuranza
Keyword(s):  
Hot Spots ◽  
Urban Areas ◽  
Smart Cities ◽  
Hot Spot ◽  
Three Dimensional ◽  
Point Of View ◽  
Control Units ◽  
Geometric Point ◽  
Spherical Images ◽  
The City

<p><strong>Abstract.</strong> The paper aims to investigate the possibilities of using the panorama-based VR to survey data related to that set of activities for planning and management of urban areas, belonging to the Smart Cities strategies. The core of our workflow is to facilitate the visualization of the data produced by the infrastructures of the Smart Cities. A graphical interface based on spherical panoramas, instead of complex three-dimensional could help the user/citizen of the city to better know the operation related to control units spread in the urban area. From a methodological point of view three different kind of spherical panorama acquisition has been tested and compared in order to identify a semi-automatic procedure for locating homologous points on two or more spherical images starting from a point cloud obtained from the same images. The points thus identified allow to quickly identify the same hot-spot on multiple images simultaneously. The comparison shows how all three systems have proved to be useful for the purposes of the research but only one has proved to be reliable from a geometric point of view to identify the locators useful for the construction of the virtual tour.</p>

scholarly journals Multifaceted Geometric Assessment towards Simplified Urban Surfaces Built by 3D Reconstruction

2019 ◽  
Vol 8 (8) ◽  
pp. 360
Author(s):  
Sheng’en Liu ◽  
Hui Yi ◽  
Xiangning Chen ◽  
Decheng Wang ◽  
Wei Jin
Keyword(s):  
3D Reconstruction ◽  
Urban Areas ◽  
Large Scale ◽  
Smart Cities ◽  
Three Dimensional ◽  
Research Fields ◽  
Planar Surfaces ◽  
Surface Simplification ◽  
Significant Step ◽  
Almost All

Large-scale three-dimensional (3D) reconstruction from multi-view images is used to generate 3D mesh surfaces, which are usually built for urban areas and are widely applied in many research hotspots, such as smart cities. Their simplification is a significant step for 3D roaming, pattern recognition, and other research fields. The simplification quality has been assessed in several studies. On the one hand, almost all studies on surface simplification have measured simplification errors using the surface comparison tool Metro, which does not preserve sufficient detail. On the other hand, the reconstruction precision of urban surfaces varies as a result of homogeneity or heterogeneity. Therefore, it is difficult to assess simplification quality without surface classification. These difficulties are addressed in this study by first classifying urban surfaces into planar surfaces, detailed surfaces, and urban frameworks according to the simplification errors of different types of surfaces and then measuring these errors after sampling. A series of assessment indexes are also provided to contribute to the advancement of simplification algorithms.

scholarly journals Unification of Logistic Demands of Small-scale Enterprises as Solution of Urban Traffic Congestion Problem

2012 ◽  
Vol 23 (4) ◽  
pp. 297-301
Author(s):  
Saša Petar ◽  
Morana Ivaković-Babić
Keyword(s):  
Traffic Congestion ◽  
Urban Areas ◽  
Technological Development ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Urban Traffic ◽  
Small Scale ◽  
Time Dimension ◽  
New Information ◽  
Business Efficiency

The development of information and telecommunication technologies, apart from accelerating the information flows, increasing efficiency on the market and other business changes, results also in the reduction of the number of employees in companies. With the application of new information and telecommunication technologies even companies with a single employee in certain activities (publishing, counselling, tourism, etc.) can successfully compete with larger companies, which leads to an increased number of logistic service demands. A large number of small enterprises create a large number of small orders which have to be delivered in the same unit of time, thus causing increased congestion of roads, especially in urban areas. Although information transport, due to the mentioned technologies, has become to a large extent virtual, the transport of people and cargo continues to operate in a three-dimensional space (recognizing the time dimension as an important factor for calculating the business efficiency). The application of the model from the paper makes it possible to confirm the thesis of increased traffic congestion as consequence of the technological development and to emphasise the need to find a solution in the form of logistic and distribution centres for small and mid-size enterprises. The companies that offer logistic and distribution services may become centres for small and mid-size enterprises, thus offering a solution that maintains the speed and efficiency and avoids costs of congestions and delays.

428. A New Information System for the Exposure Assessment of Occupational Carcinogens at the Regional Level

2002 ◽  
Author(s):  
T. Kauppinen ◽  
P. Heikkila ◽  
A. Saalo ◽  
A. Kauppinen ◽  
I. Welling ◽  
...  
Keyword(s):  
Information System ◽  
Exposure Assessment ◽  
Regional Level ◽  
New Information

Spatial Autocorrelation in the Study of Neighbourhoods towards Smart Cities: Empirical Evidence from Kerman, Iran

2012 ◽  
Vol 9 (2) ◽  
pp. 1
Author(s):  
Asra Hosseini
Keyword(s):  
Spatial Autocorrelation ◽  
Urban Areas ◽  
Smart Cities ◽  
Moran’S I ◽  
Moran's I ◽  
Urban Planner ◽  
Universal Feature ◽  
Autocorrelation Method ◽  
Selection Of

From earliest cities to the present, spatial division into residential zones and neighbourhoods is the universal feature of urban areas. This study explored issue of measuring neighbourhoods through spatial autocorrelation method based on Moran's I index in respect of achieving to best neighbourhoods' model for forming cities smarter. The research carried out by selection of 35 neighbourhoods only within central part of traditional city of Kerman in Iran. The results illustrate, 75% of neighbourhoods' area in the inner city of Kerman had clustered pattern, and it shows reduction in Moran's index is associated with disproportional distribution of density and increasing in Moran's I and Z-score have monotonic relation with more dense areas and clustered pattern. It may be more efficient for urban planner to focus on spatial autocorrelation to foster neighbourhood cohesion rather than emphasis on suburban area. It is recommended characteristics of historic neighbourhoods can be successfully linked to redevelopment plans toward making city smarter, and also people's quality of life can be related to the way that neighbourhoods' patterns are defined. 

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