scholarly journals Building density derived from aerial photo mapping for physical vulnerability reduction in earthquake hazard zone of Sengon village, Central Java

Author(s):  
Djati Mardiatno ◽  
Denni Susanto ◽  
Tiara Handayani ◽  
Lies Rahayu W ◽  
Bevaola Kusumasari

<p><em>Building density is an important parameter for earthquake vulnerability mapping. Sengon village, Klaten, Central Java, which located in active fault zone of Opak is still lack of strategies for risk reduction in relation to physical vulnerability, especially to building density.  The aims of this research is to 1) calculate the building density, 2) identify the relation of building density and population number, and 3) propose vulnerability reduction planning for physical characteristic. Building density calculate from aerial photo mapping. This method is robust and effective, resulting data of building density that Dusun Belan is the densest. In Sengon village, building density and population has positive correlation. Most of buildings is inhabited by 1-2 households. Sengon village can adapt several strategies for vulnerability physical reduction, i.e. a) design a strong and eco-friendly earthquake building especially for building inhabited by&gt;3 HH, b) provide an open space and evacuation route in denser building area. </em></p>

2020 ◽  
Vol 200 ◽  
pp. 01002
Author(s):  
Djati Mardiatno ◽  
Tiara Handayani ◽  
Denni Susanto ◽  
Lies R.W. Faida ◽  
Bevaola Kusumasari ◽  
...  

This study aims to perform vulnerability assessment in a detailed scale at villages adjacent to Opak fault, Central Java. The study took place in Sengon Village, Prambanan District, Klaten Regency. Sengon is located near Opak fault zone and experienced tremendous disaster in 2006. The method for vulnerability assessment in earthquake hazard used in this study involves three criteria, i.e. physical, social, and economic with various indicators within. The mapping unit are hamlet units, which more detailed than village unit. The result of physical vulnerability assessment in Sengon village was dominated by a medium level of vulnerability. Sengon village has clustered settlement characteristics and this is a type of rural village in Indonesia. The advantage of clustered settlements is that there is a large evacuation site in this case paddy fields. The socio-economic vulnerability indicates that the majority of Sengon village are informal workers. This will have a big impact if an earthquake occurs because there will be many people lose their income. The total vulnerability assessment shows that all levels of vulnerability are distributed similarly. The advantage of this study is helpful to determine the action for reducing vulnerability especially in the at-risk of earthquake hazard.


2014 ◽  
Vol 875-877 ◽  
pp. 416-422
Author(s):  
Abdelheq Guettiche ◽  
Mostefa Mimoune

Seismic vulnerability of an urban environment is characterized by the ability of buildings and structures to support seismic events (physical vulnerability) and by the ability of people to behave in a consistent and rational face a major event (social vulnerability). Constantine is a city with moderate seismicity but the level of risk is high because of urban concentration and topography of the site. The seismic risk reduction therefore requires assessing the physical vulnerability of its buildings. It is proposed in this paper an analysis of a group of buildings for residential use located west of the city, consisting mainly of relatively high buildings. Following a survey of a portion of the housing stock of this city, a seismic survey method was applied based on "observations" post-seismic. Vulnerability indicators are statistically related to damage through a vulnerability index "IV" to establish curves of damage (or vulnerability). These are used to estimate the level of damage that is likely resulting in damage cards. The goal is to develop an initial database of some of the housing stock in the Constantine city (knowledge of earthquake hazards, construction defects ...) to be used in the estimation of seismic risk and verification of seismic safety of existing buildings. Keywords: Earthquake hazard; Seismic vulnerability; Constantine city; damage.


Author(s):  
Komariah ◽  
Husnan ◽  
Mujiyo ◽  
Suryono

This study aims to find out the accuracy of PlanetScope imagery in analyzing the total content of Nitrogen (N), Phosphorus (P), Potassium (K) and Sulfur (S) in terrace paddy field. The area for this research is terraced paddy fields in Wonosari Sub-district, Gondangrejo District, Karanganyar Regency, Central Java Province, Indonesia. Aerial photo analysis from PlanetScope (www.planet.com) was conducted at the Pedology Laboratory and Soil Survey, while soil sample analysis was carried out at the Laboratory of Chemistry and Soil Fertility, Faculty of Agriculture, Sebelas Maret University (UNS). The preparation aerial photo analysis from PlanetScope was carried out in September 2019. Soil sampling, laboratory analysis, and data analysis were carried out from September 2019 to January 2020. There are 3 Citra PlanetScope bands that have a significant effect on the elements being studied. Those three bands are band 1 (red), band 3 (blue) and band 4 (NIR). Multiple linear regression analysis obtained a regression equation model from those three bands. This model can be used as an estimator for the existence of the soil nutrient being studied. The accuracy values obtained for N, P, K and S in terraced paddy fields are 97.58%; 94.85%; 85.97%; and 97.39% and the R2 value of 0.39; 0.30; 0.30 and 0.27. The R2 value, which is still relatively small, indicates that there are many factors may affect the accuracy value. Int. J. Agril. Res. Innov. Tech. 11(1): 1-9, June 2021


2019 ◽  
Vol 3 (1) ◽  
pp. 55-67
Author(s):  
Jan Willem Hatulesila ◽  
Gun Mardiatmoko ◽  
Irwanto Irwanto

Green Open Space is a component of landscaping that greatly affects urban air both directly and indirectly. The ideal standard minimum area of ​​green open space is at least 30% of the total area of ​​the city.The study used a spatial analysis method through the approach to calculating the Normalized Difference Vegetation Index (NDVI) for vegetation cover. Overlay analysis of GIS vegetation cover maps with the Ambon city spatial pattern map, has produced a map of the city green open spatial model, which shows a picture of existing corridors of green open space patterns, building spatial patterns, and non-vegetation spatial patterns (vacant land) .The results of the analysis of the green open space model map recommend the need for areas with urban park areas, park spots areas, and tree corridor areas planted on either side of the road. Inventory method, analysis of spatial and observations carried out at nine sampling locations, showed that the location of Ambon City's green open space was ± 1.115.900 m2 or 111,59 ha, with cover of understorey vegetation (grasses and saplings) 16,31 ha. Estimated carbon content of understorey vegetation (grasses and saplings) 52,49 kg/ha and 883 kg/ha of pole and tree vegetation.  Normalized Difference Vegetation Index (NDVI) in nine sampling locations of Ambon City's green open space, for the area of vegetation cover is 61.58 ha or 58.31%, building area 39.63 ha or 37.52% and vacant land 4.40 ha or 4.17%.


ICCD ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 394-399
Author(s):  
Eka Purwa Laksana ◽  
Nifty Fath ◽  
Anggraeni Dyah Sulistiowati ◽  
Harfa Iskandaria

Dense settlements in urban areas are one of the problems in DKI Jakarta. RT.03 / RW.01 Kel. Petukangan Utara, Kec. Pesanggrahan Jakarta Selatan is one of the densest settlements in DKI Jakarta which is located side by side with Universitas Budi Luhur. Based on SNI 03-1733-2004, the level of population density in the region is included in the category of High Density. This can be seen from the houses lined up along the road with little provision of Green Open Space. The community develops the need for building area by maximizing the area of land for building. This impacts the lack of air circulation in accordance with SNI-14-1993-03 about the thermal comfort area of buildings which are conditioned for Indonesians, as well as the lack of lighting in accordance with SNI 03-6575-2001 regarding illumination standards for the light of a room.With thermal comfort and illumination that is not in according to standards in the region, a Community Service activity was held by the Faculty of Engineering of the Universitas Budi Luhur to add community knowledge about how to make thermal comfort and illumination in homes using energy efficient. Thermal comfort can be fulfilled by making vertical greening on limited land, While the comfort of illumination can be fulfilled by using LED lights. The activity uses community empowerment methods, so that the community can independently make vertical greening in their respective homes and know the benefits for thermal comfort and can use LED lights in their respective homes and know the benefits to save electricity. The results of the Community Empowerment Towards Energy Saving Settlements at RT.03 / RW.01 Kel Petukangan Utara Kec. Pesanggrahan Jakarta Selatan, is that the region has vertical greening as a natural air conditioning system and uses an LED lighting system as an energy efficient lighting.


2021 ◽  
Author(s):  
Tanzila Aktar Shawon ◽  
Mohammad Mizanur Rahman ◽  
Md. Zibon Ahmmed ◽  
Md. Akter Mahmud

Abstract From the historical records, geological evident and recent trends in earthquake, it is evident that Bangladesh is in a high-risk zone of earthquake hazard. The recent results of the CDMP, if a huge earthquake greater or equal to seven magnitude happened in this country, would lead to a serious human tragedy due to the defective structure. In Lalmatia, Dhaka study area there are various types of structures as like as RCC, masonry, semi-pucca etc. and the area has different old and newly filled soil development. This study considered the characteristics of RCC building elements and their behaviors to assess the risk against earthquake vulnerability in Lalmatia using the Turkish method. Next building vulnerability from Turkish Method used as one total vulnerability factor. In the method of this research, a pair wise comparison matrix for a numerical relationship between two elements and the Analytical Hierarchical Process (AHP) model has been applied to decide in weight and to get rank of the vulnerability factors. By weighted sum vector among the six factors and calculating vulnerability index (VI), the overall vulnerability were identified in Lalmatia. Using Geographic Information System (GIS) and defining an ordinal scale of calculated result, the vulnerability status of single buildings of the study area is presented here. This research tells that 8.23% buildings are highly vulnerable and 14.24% buildings are moderately vulnerable to earthquake. About 77.53% buildings are less vulnerable. As the study area is in a major urban center (Dhaka City), the scenario of unplanned urbanization increases the overall vulnerability to higher scale.


MODUL ◽  
2020 ◽  
Vol 20 (01) ◽  
pp. 1-9
Author(s):  
Sri Hartuti Wahyuningrum ◽  
Mustika K. Wardhani

In the context of hospital building, inpatient care has large portion in comparasion of the other facility areas within hospitals related to efficiency, such as outpatient services, emergency room, diagnostic and especially inpatient function group services. Even though inpatient care group do not have specific requirements for detailed design and building equipment, it requires efficiency considerations related to correlation with room layout. It is expected that by considering the level of efficiency of service to patients, design can fulfill technical requirements of health and medical aspects. Regarding designs for district-level private hospitals, demand optimization of placement and layout of inpatient care became main topic in this research. This is related to the value of investment in building area development and types of services provided according to inpatient services class. The method used is comparative study of two (2) private hospital design to find the mind factors that most influence of optimization of inpatient layout. The results of study can be used as a guide in architectural design process for designing hospital buildings especially related to design efficiency of inpatient layout so that the building can function sustainability because of optimal service.


2021 ◽  
Vol 879 (1) ◽  
pp. 012022
Author(s):  
S Z Alya ◽  
R Khrisrachmansyah

Abstract The concept of Biophilia shows how humans have a fundamental desire to connect and depend on nature, providing healing and positive impacts on emotional change. DKI Jakarta Province population number has increased significantly from year to year so that the need for green open space increases. Buperta City Forest Area has enormous potential to facilitate the needs of the green space in the City of East Jakarta, but the development of existing natural tourism is still not optimal. The concept of Biophilia can be a solution to increase the attraction, user experience, and increase relaxation benefits for Buperta Cibubur user in sustainable way. The objectives of this research are: (1) Identifying and studying the characteristics of the site and its users, (2) Developing criteria for the utilization of the Biophilia concept in green open spaces, and (3) Developing greenery layout arrangement recommendations. Furthermore, direct observation, interview, and literature study were used comprehensively to collect the data. Data processed using Biophilia approach, through descriptive analysis and spatial method of analyzing the potential and constraints from the site. Detail reccomendation developed on zones with strongest natural potential such as “Kempa”, Recreation Area, and Pine Forest, with each different approach of using Biophilia concept according to the environment and user characteristics. The output of the research is in the form of planting plan and site plan.


2021 ◽  
Vol 887 (1) ◽  
pp. 012010
Author(s):  
M. I. H. Wijaya ◽  
N.M. Ariyani ◽  
B. N. Priambudi ◽  
A. Gumelar ◽  
H. Ichsanudin

Abstract The development of industrial estates is a strategy in encouraging the growth of national industries in Indonesia. The development of industrial estates, especially in the regions, is an implementation of the 2015-2035 master Plan of National Industry Development. Kendal Industrial Park (KIP) is one of the industrial estates in Central Java which is experiencing growth and is expected to be one of the choices for investors. The development of industrial estates in the regions has an impact on changes and increases in space requirements. This condition makes land-use change green land into industrial land which is the cause of the effect of rising air temperatures in cities. This study intends to identify the need for green open spaces spatially based on the phenomenon of increasing temperature in the Kendal industrial area using the Urban Heat Island (UHI) approach. Remote Sensing via satellite imagery is used to detect UHI spatially. The location of this UHI will later be used as spatial modelling data to assess how big and where green open space is needed. The results of this study are in the form of a spatial identification of the adequacy of green open space which will mitigate the UHI phenomenon in the Kendal industrial area which is presented spatially in the form of a thematic map.


2021 ◽  
Vol 10 ◽  
Author(s):  
Septi Anggi Prawesti ◽  
Daru Purnomo ◽  
Suryo Sakti Hadiwijoyo

<p><em>The increased </em><em>the number of</em><em> population leads to imbalanced space and the stress effect on space makes the open space narrower, so that the area develops dirtiness. The narrow space availability occurs in Pancuran area, Salatiga City, Central Java, Indonesia. As the solution to the narrow space, a non-green open space has been constructed in Pancuran area in 2018 in the form of a landmark called Zero Point. This research aimed to analyze the form of non-green open space utilization in Pancuran slum areas. Henry Lefebvre's theory of spatial production which consists of spatial practice, spatial representation, and space representation will be an analytical tool to explain the phenomenon of the slum area. This study used a qualitative method with a case study approach and primary and secondary data sources. The data collection technique was carried out using observation, interview, and documentation. The data analysis technique used is to sort the data, explain the data and draw conclusions. The result of the research showed that (1) the form of non-green open space (Zero Point) utilization as the representation of social space in Pancuran slum area is currently limited to the playground area for children, stopover place for the visitors coming into Pancuran area, and photographing area; (2) the social space constructed in Zero Point is the result of children’s playing activity process, in turn making the space alive; (3) Zero Point can be said as an icon or symbol that can change Pancuran slum area into the organized and quality modern village one.</em><em></em></p><p> </p><p><strong><em>Keywords</em></strong><strong><em>: Non-Green Open Space, Space Representation, Social Space, Slum Area.</em></strong><strong><em></em></strong></p><p><strong><em> </em></strong></p><h2>Abstrak</h2><p>Peningkatan jumlah penduduk menyebabkan terjadinya ketidakseimbangan ruang dan efek tekanan terhadap ruang mengakibatkan ketersediaan ruang terbuka semakin sempit sehingga wilayah mengalami kekumuhan. Sempitnya ketersediaan ruang tersebut terjadi di wilayah Pancuran, Kota Salatiga, Jawa Tengah, Indonesia. Solusi dari sempitnya ruang, pada tahun 2018 di wilayah Pancuran telah dibangun sebuah ruang terbuka non hijau berupa <em>landmark</em> yang diberi nama <em>Zero Point</em>. Penelitian ini bertujuan untuk menganalisis bentuk pemanfaatan ruang terbuka non hijau di kawasan kumuh Pancuran. Teori produksi ruang dari Henry Lefebvre yang terdiri atas praktik spasial, representasi ruang dan ruang representasi akan menjadi alat analisis untuk menjelaskan fenomena kawasan kumuh tersebut. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi kasus serta dengan pengambilan sumber data primer dan sekunder. Teknik pengumpulan data dilakukan dengan metode observasi, wawancara serta dokumentasi. Teknik analisis data yang digunakan adalah memilah data, memaparkan data dan menarik kesimpulan. Hasil penelitian diperoleh bahwa (1) bentuk pemanfaatan ruang terbuka non hijau (<em>Zero Point</em>) sebagai representasi ruang sosial di kawasan kumuh Pancuran saat ini sebatas digunakan sebagai wilayah aktivitas bermain anak-anak, tempat singgah bagi pengunjung yang memasuki wilayah Pancuran serta menjadi area berfoto, (2) ruang sosial yang terbentuk di <em>Zero Point</em> merupakan hasil dari proses aktivitas bermain anak-anak yang akhirnya menjadikan ruang tersebut hidup, (3) <em>Zero Point</em>       bisa dikatakan sebagai simbol yang mampu merubah wilayah kumuh Pancuran menjadi wilayah kampung modern yang tertata dan berkualitas.</p><p> </p><strong>Kata Kunci: Kawasan Kumuh, Representasi Ruang, Ruang Sosial, Ruang Terbuka Non Hijau.</strong>


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