scholarly journals Estimation of the Buildings Seismic Vulnerability: A Methodological Proposal for Planning Ante-Earthquake Scenarios in Urban Areas

2018 ◽  
Vol 8 (7) ◽  
pp. 1208 ◽  
Author(s):  
José Ródenas ◽  
Salvador García-Ayllón ◽  
Antonio Tomás
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Seismic Event ◽  
Seismic Vulnerability ◽  
Specific Area ◽  
Se Spain ◽  
Earthquake Scenarios ◽  
Emergency Situations ◽  
Emergency Scenarios ◽  
The City

In spite of the enhancements related to building construction, many regions still present a major level of seismic risk as a consequence of the high vulnerability of the urban configuration of their cities. An improved method to assess the seismic vulnerability of buildings in urban areas is proposed in this contribution in order to advance the management of seismic emergency scenarios. The methodology, mainly based on the cadastral database, allows for a more standardized implementation as a function on the typological, structural, and urban parameters of the buildings, reducing the level of uncertainties linked to these methodologies and giving continuity to the different RISK-UE published works. The generalization of the method to any urban area has also been improved by means of removing the parameters whose calibration is associated with a specific area. The methodology has been put into practice in the urban area of the city of Lorca (SE Spain), in the aftermath of the earthquake of 11 May 2011, due to the availability of well-documented data reported from this seismic event. The proposal, when it is combined with Geographic Information System (GIS) techniques, provides valuable information for the planning and management of post-earthquake emergency situations.

scholarly journals UAV Flight and Landing Guidance System for Emergency Situations †

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4468 ◽  
Author(s):  
Joon Yeop Lee ◽  
Albert Y. Chung ◽  
Hooyeop Shim ◽  
Changhwan Joe ◽  
Seongjoon Park ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Urban Area ◽  
Urban Areas ◽  
High Mobility ◽  
Guidance System ◽  
Laser Guidance ◽  
Emergency Situations ◽  
Information Recording ◽  
Safe Area ◽  
The City

Unmanned aerial vehicles (UAVs) with high mobility can perform various roles such as delivering goods, collecting information, recording videos and more. However, there are many elements in the city that disturb the flight of the UAVs, such as various obstacles and urban canyons which can cause a multi-path effect of GPS signals, which degrades the accuracy of GPS-based localization. In order to empower the safety of the UAVs flying in urban areas, UAVs should be guided to a safe area even in a GPS-denied or network-disconnected environment. Also, UAVs must be able to avoid obstacles while landing in an urban area. For this purpose, we present the UAV detour system for operating UAV in an urban area. The UAV detour system includes a highly reliable laser guidance system to guide the UAVs to a point where they can land, and optical flow magnitude map to avoid obstacles for a safe landing.

scholarly journals Sustainable Site System

2021 ◽  
Author(s):  
Jorden J. S. Lefler
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Architectural Design ◽  
Heat Island ◽  
Rating Systems ◽  
Island Effect ◽  
Key Points ◽  
Site Design ◽  
The Impact ◽  
The City

This thesis discusses a method of analysing the input of interventions in a building's site design, all of which affect the heat island effect, bio-diversity and hydrology of urban areas. Existing standards from Toronto, Vancouver and Berlin have been researched and analysed. This paper presents an evolution of a method called biotope area factor used in Berlin, Germany. A synthesis of the approach of all three systems was considered and distilled into the key points which were then incorporated into the proposed method. In addition to the impact of an individual building, it also includes the impact from the adjacent street area. The final components of this thesis are the application of the method developed to an urban area in the city of Toronto and results showing the impacts on architectural design from site rating systems.

scholarly journals An automated classification system for urban areas matching the ‘city country fingers’ pattern: the cases of Kamakura (Japan) and Acireale (Italy) cities

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Roberto Spina ◽  
Emiliano Tramontana
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Agricultural Land ◽  
Google Earth ◽  
Classification Model ◽  
Complete Analysis ◽  
City Development ◽  
Essential Condition ◽  
Green Areas ◽  
The City

Abstract The uncontrolled expansion of urban areas is one of the main factors that reduce the liveability of cities. In recent years, to contrast urban sprawl, several nations have promoted policies aimed at developing urban green spaces. The importance of green oases within cities had already been highlighted, in 1977, by the architect Christopher Alexander who had developed a series of patterns including ‘City Country Fingers’ claiming that city development should consider the prolongation of country land in to the urban area. In several cities, especially in Japan, it is possible to recognize the imprint of urban development based on country fingers. This term refers to extensive urban intersections of agricultural land or wooded hills which, from the peripheral areas, penetrate the city. Inside them, there are urban windows, called city fingers, whose development direction is opposite to those of the country fingers. To recognize and analyze, in an automated way, these particular structures, a Python-based application was created. Starting from the original high-resolution image of Google Earth, a complete analysis was performed, labeling and delimiting urban and vegetational areas and extrapolating the main geometric parameters of the country and city fingers. The finalization of the results obtained was carried out through a classification model whose criteria were based on Alexander’s pattern. Thanks to this classification scheme, the distinction between Active Green Areas (country fingers) and Passive Green Areas (gardens and public parks) have been revealed for the analyzed cities. The tests performed showed almost ideal conditions for the city of Kamakura and a limited match for the urban area of Acireale. The proposed method is suitable for fields of application that require a qualitative and quantitative determination of the vegetation cover present within the city, an essential condition for correct territorial planning.

Simulation of the Cooking Organic Aerosol Concentration Variability in an Urban Area

2021 ◽  
Author(s):  
Evangelia Siouti ◽  
Ksakousti Skyllakou ◽  
Ioannis Kioutsioukis ◽  
Giancarlo Ciarelli ◽  
Spyros N. Pandis
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
Temporal Distribution ◽  
Late Summer ◽  
Field Studies ◽  
Organic Aerosol ◽  
Basis Set ◽  
Cooking Times ◽  
The City ◽  
Lunch Time

<p>Cooking operations can be an important fine PM source for urban areas. Cooking emissions are a source of pollution that has been often ignored and are not included or are seriously underestimated in urban emission inventories. However, several field studies in cities all over Europe suggest that cooking organic aerosol (COA) can be an important component of the total organic PM. In this study we propose and evaluate a methodology for the simulation of the COA concentration and its variability in space and time in an urban area. The city of Patras, the third biggest in Greece is used for this first application for a typical late summer period. The spatial distribution of COA emissions is based on the exact location of restaurants and grills, while the emissions on the meat consumption in Greece. We estimated COA emissions of 150 kg d<sup>-1</sup> that corresponds to 0.6 g d<sup>-1</sup> per person. The temporal distribution of COA was based on the known cooking times and the results of the past field studies in the area. Half of the daily COA is emitted during dinner time (21:00-0:00 LT), while approximately 25% during lunch time (13:00-16:00 LT). The COA is simulated using the Volatility Basis Set with a volatility distribution measured in the laboratory and is treated as semivolatile and reactive. The maximum average COA concentration during the simulation period is predicted to be 1.3 μg m<sup>-3</sup> in a mainly pedestrian area with a high density of restaurants. Peak hourly COA concentrations in this area exceed 10 μg m<sup>-3</sup> during several nights. The local production of secondary COA is predicted to be slow and it represents just a few percent of the total COA.</p><p> </p>

scholarly journals Peri-Urban Dynamics in Murcia Region (SE Spain): The Successful Case of the Altorreal Complex

Urban Science ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 60
Author(s):  
Rubén Giménez García ◽  
Ramón García Marín ◽  
José Serrano Martínez ◽  
Manuel Pulido Fernández
Keyword(s):  
Urban Development ◽  
Spatial Pattern ◽  
Urban Areas ◽  
Local Population ◽  
Se Spain ◽  
Functional Changes ◽  
Urban Dynamics ◽  
Successful Case ◽  
City Model ◽  
The City

The spatial pattern of the urban development recently experienced by large urban areas is significantly changing the traditional city model based on its compactness. It is generating new forms of urban organization that imply morphological, territorial, social, and functional changes. We analyzed the spatial impact generated by the construction of the Altorreal resort in the Murcia region and its effects on the local population (e.g. number of inhabitants). The results obtained highlight the importance of this resort in terms of space and population compared with other neighborhoods of the city.

scholarly journals Emergency scenarios in the Banger polder, Semarang City: a case study to identify different emergency scenarios

2017 ◽  
Vol 12 (3) ◽  
pp. 638-646 ◽  
Author(s):  
S. Imam Wahyudi ◽  
Rick Heikoop ◽  
Henny Pratiwi Adi ◽  
Tom Overgaauw ◽  
Bram Schipper ◽  
...  
Keyword(s):  
Emergency Response ◽  
High Tide ◽  
Residential Areas ◽  
Tidal Flooding ◽  
Emergency Situations ◽  
Emergency Response Plan ◽  
Response And Recovery ◽  
Response Plan ◽  
Emergency Scenarios ◽  
The City

In Semarang urban coastal areas experience daily flooding from the sea during high tide (tidal flooding). Flourishing residential areas have changed into unhealthy slums with the nuisance of daily flooding in parts of the city. To overcome these problems a polder system was implemented to address the tidal flooding. The Semarang polder system is the first fully operational polder system in a densely populated urban area in Indonesia. This article describes the polder system that prevents flooding in the Eastern part of the city; the Banger polder area. An important element of the polder system is an emergency response plan that prepares for a flood emergency condition. The emergency response plan provides different emergency scenarios and identifies emergency levels and criteria. The management of emergency situations can be divided into four phases, namely mitigation, preparedness, response and recovery. The research results provide a detailed description of four emergency scenarios with 3 emergency levels for each scenario in the Banger polder area. The scenarios are; pumping stations operational damage, high-intensity rainfall in combination with high tide, failure of levees and dams, and an inflow of water from the west and east side of Polder system area.

scholarly journals Incentivo para o plantio de árvores nativas em áreas urbanas para proliferação de abelhas sem ferrão

2015 ◽  
Vol 3 (2) ◽  
pp. 01
Author(s):  
G. Martins ◽  
R. L. S. Ferraz ◽  
J. L. Batista ◽  
M. A. Barbosa
Keyword(s):  
Environmental Education ◽  
Urban Area ◽  
Tree Species ◽  
Human Activities ◽  
Urban Areas ◽  
Stingless Bees ◽  
Native Plants ◽  
Average Height ◽  
Native Trees ◽  
The City

<p>Em decorrência de atividades antrópicas exploratórias, tem ocorrido aumento na supressão de espécies arbóreas, refletindo na biodiversidade e equilíbrio dos ecossistemas, reduzindo a população de espécies de abelhas.<strong> </strong>Objetivou-se com este trabalho, fazer um levantamento da ocorrência de árvores, nidificações e espécies de abelhas com intuito de incentivar o plantio de espécimes, principalmente nativos, na área urbana, para que ocorra uma maior proliferação das abelhas indígenas sem ferrão. Para tanto, realizou-se um estudo na Praça Dr. Joaquim Batista na cidade de Jaboticabal, SP. Através de consultas em literatura especializada, identificou-se o número de espécies arbóreas e abelhas sem ferrão, o número e altura média de nidificações, além da coleta de sementes para produção de mudas. Foram identificadas 27 espécies de árvores nativas, 14 exóticas, cinco de abelhas sem ferrão, 37 nidificações, com altura média geral de 2,3 m, além da produção de 20 mudas nativas. A elevada ocorrência de nidificações em plantas nativas e a presença de sementes, demonstram a adaptabilidade destes polinizadores, além de subsidiar a viabilidade da proposta de incentivar o plantio de espécimes, principalmente nativas em área urbana para a proliferação das abelhas indígenas sem ferrão. Estudos complementares podem ser realizados visando educação ambiental nestes locais.</p><p align="center"><strong>Encouraging the planting of native trees in the urban area for proliferation of stingless bees</strong></p><p>As a result of exploratory human activities, there has been an increase in the suppression of tree species, reflecting on biodiversity and ecosystem balance, reducing the population of bee species. The objective of this work, to survey the occurrence of trees, Nest establishment and bee species in order to encourage the planting of species, mostly native, in urban areas, so that there is a higher proliferation of indigenous stingless bees. Therefore, we carried out a study in Dr. Joaquim Batista Square in the city of Jaboticabal, SP. Through consultations in the literature, we identified the number of tree species and stingless bees, the average number and height of Nest establishment, besides the collection of seeds for seedlings. They identified 27 species of native trees, 14 exotic, five of stingless bees, 37 Nest establishment, with overall average height of 2.3 m, in addition to producing 20 native seedlings. The high occurrence of Nest establishment of native plants and the presence of seeds demonstrate the adaptability of these pollinators, in addition to supporting the viability of the proposal to encourage the planting of specimens, especially in urban areas native to the proliferation of indigenous stingless bees. Additional studies can be conducted to environmental education in these places.</p>

scholarly journals The relationship between dental caries and carbohydrates intake among preschool-aged children in rural and urban areas

2017 ◽  
Vol 29 (3) ◽  
Author(s):  
Rina Putri Noer Fadilah ◽  
Azkya Patria Nawawi ◽  
Andi Supriatna ◽  
Sri Sarwendah ◽  
Ratih Widyasari
Keyword(s):  
Dental Caries ◽  
Urban Area ◽  
Urban Areas ◽  
Average Value ◽  
Rural And Urban Areas ◽  
Rural And Urban ◽  
Rural And Urban Area ◽  
The Relationship ◽  
The City ◽  
Preschool Aged Children

Introduction: The prevalence of dental caries among children has increased in the past decades. Dental caries has a multifactorial aetiology, including host (saliva and teeth), microbiology (plaque), substrate (diet), and time. The role of fermentable carbohydrates intake as a risk factor in the initiation and progression of dental caries. The purpose of this study was to determine the relationship between dental caries and carbohydrates intake among preschool-aged children in rural and urban areas of the city of Cimahi, Indonesia. Methods: The method used was an analytical cross-sectional study with pathfinder survey based on the WHO basic methods of oral health surveys. The data were collected through intraoral examination, and nutritional status measurement was done by using food frequency questionnaire. Statistical analysis used was the chi-square test. Results: From the study towards 100 preschool children resulted the prevalence of dental caries in rural and urban area respectively was 96 and 92%. The average value of deft index in urban area was 8.46 (95% CI:7.00-9.91) and was 7.98 (95% CI:6.50-9.45) in rural area. The average value of sucrose intake frequency in urban area was 237.14 (95% CI:204.95-269.32), whilst in rural area was 177.54 (95% CI:155.66-199.41). Conclusion: There was a relationship between dental caries and carbohydrates intake among preschool-aged children in the rural and urban area of the city of Cimahi, Indonesia.

scholarly journals Machas de inundação no município de Itajubá-MG

ForScience ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. e00594
Author(s):  
Caik Elisio Tonelli Faria ◽  
Alexandre Augusto Barbosa
Keyword(s):  
Sustainable Development ◽  
Urban Area ◽  
Urban Areas ◽  
Urban Population ◽  
Computer Programs ◽  
Environmental Problems ◽  
History Of ◽  
The City ◽  
Planning Problems

Problemas e catástrofes geradas por ações da natureza são cíclicos na história de nosso planeta.Um desses problemas, se não o principal e mais recorrente, são as inundações que vêm ocasionando diversos prejuízos tanto para a população quanto para os municípios em geral. Com o município de Itajubá-MG não é diferente. Principalmente por ter se desenvolvido às margens do rio Sapucaí, tem passado por problemas com inundações desde a sua fundação em 1819. No ano 2000, foi registrada uma das suas maiores inundações, que afetou 80% da sua população urbana. Atualmente, devido aos avanços da tecnologia, problemas referentes às inundações podem ser diagnosticados e evitados, utilizando-se programas computacionais, como Autocad e Global Mapper, com os quais, dentro deste trabalho, pôde-se se ter a real noção das áreas dentro do município em estudo susceptíveis a enchentes e inundações. Como principal resultado, observou-se uma mancha de inundação ocupando 65% da área urbana total do município, o que pode servir como base para realizar obras de prevenção e permitir um avanço municipal controlado. A partir desse levantamento pode-se ter a representação da fragilidade da cidade quanto a problemas ambientais decorrentes das chuvas torrenciais. Percebe-se a necessidade de um maior e melhor planejamento do crescimento urbano, por parte dos órgãos regulamentadores, adotando-se estratégias para o desenvolvimento eficiente e sustentável da região. Palavras-chave: Inundações. Planejamento. Problemas.   Flood spots in municipality of Itajubá-mg Abstract Problems and disasters generated by nature actions are cyclical in the history of our planet. One of these problems , maybe the major and most frequent, are the flooding which has been causing many losses for both the population and the municipalities in general. In the city of Itajubá -MG it is not different. Mainly because the city is located in the banks of the Sapucai river, it has experienced problems with flooding since its foundation in 1819. In 2000, the city faced one of its biggest floods, which affected 80% of its urban population. Currently, due to advances in technology, problems related to flooding can be diagnosed and prevented by using computer programs such as Autocad and Global Mapper, which ones, in this work, allow us to have a good idea about areas in the studied city, that could be potentially affected by floods. As the best result,  one flood spot occupying 65% of the urban area of the city was observed. The information can be used for preventing actions and as a base for a mediated growing. From this results, it is possible to measure how fragile is the city regarding to environmental problems related to storms, which requires that regulatory organizations make a bigger and better growing planning for the urban areas, applying strategies for the efficient and sustainable development in the region. Keywords: Floods. Planning. Problems.

scholarly journals Potential Seismic Damage Assessment of Residential Buildings in Imzouren City (Northern Morocco)

Buildings ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 179 ◽  
Author(s):  
Seif-eddine Cherif ◽  
Mimoun Chourak ◽  
Mohamed Abed ◽  
Abdelhalim Douiri
Keyword(s):  
Seismic Risk ◽  
Seismic Vulnerability ◽  
Residential Buildings ◽  
Site Investigation ◽  
Economic Loss ◽  
Vulnerability Index ◽  
Index Method ◽  
Vulnerability Index Method ◽  
Earthquake Scenarios ◽  
The City

The main purpose of this study is to assess seismic risk and present earthquake loss scenarios for the city of Imzouren, in northern Morocco. An empirical approach was chosen to assess the seismic vulnerability of the existing buildings, using the Vulnerability Index Method (RISK-UE), and considering two earthquake scenarios (deterministic and probabilistic). Special concern was given to the seismic vulnerability in Imzouren since the 2004 earthquake (24 February, mw = 6.4) that struck the region and caused substantial damage. A site investigation was conducted in the city targeting more than 3000 residential buildings, which had been closely examined and catalogued to assess their seismic vulnerability. The results of the seismic risk assessment in the city are represented through damage to the buildings, harm to the population and economic loss. Generally, the results obtained from the deterministic approach are in agreement with the damage caused by the 2004 earthquake.

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