scholarly journals KAJIAN KAPASITAS TAMPUNGAN KOLAM RETENSI DI PERUMAHAN SARIMAS, KELURAHAN SUKAMISKIN, KECAMATAN ARCAMANIK, KOTA BANDUNG

2021 ◽  
Vol 2 (2) ◽  
pp. 51-62
Author(s):  
Bima Lutfi Fuad ◽  
An An Anisarida
Keyword(s):  
Population Growth ◽  
Flow Path ◽  
Water Runoff ◽  
Water Tank ◽  
Prevention Measures ◽  
Economic Activities ◽  
Flood Prevention ◽  
Significant Volume ◽  
Growth Activity ◽  
Runoff Discharge

The flood was triggered by a decrease in absorption zones as population growth, activity and land requirements for housing or economic activities increased. To overcome the flood, Bandung City created a conservation pond as one of the flood prevention measures designated as one of the most frequent flood forest prevention measures in Sarimas. The purpose of this study is to assess of the capacity of the retention pool in Sarimas housing, Sukamiskin sub-district, Arcamanik subdistrict, Bandung city.Based on a runoff discharge analysis conducted with rain on the 10-year obtained a maximum of water runoff discharge using the method of synthetic hydrograph unit (HSS) Nakayasu of 20.52 m3. The traceability of the flow path carried out still leaves a significant volume of the water tank, with the capacity of the outlet remaining up to 5.01 m3/s capacity for the pump.

1666 AND LONDON'S FIRE HISTORY: A RE-EVALUATION

2016 ◽  
Vol 59 (2) ◽  
pp. 319-338 ◽  
Author(s):  
DAVID GARRIOCH
Keyword(s):  
Population Growth ◽  
Fire History ◽  
Maritime Trade ◽  
Fire Prevention ◽  
Prevention Measures ◽  
Rapid Population Growth ◽  
Fire Control ◽  
Large Fires ◽  
Continued Use

AbstractWhile it is incontestable that the Great Fire led to a new awareness and to stronger measures to prevent and to fight fires, this was not because it was the worst in a long series of serious fires, but because it was one of the first. London had no really large fires in the four centuries before 1666, but was to experience fifty or more in the following 200 years. This article asks why. Alongside the obvious facts of rapid population growth and the resulting shoddy building, the continued use of timber for housing, and the inadequacy of fire prevention measures, it suggests that the growth of London's maritime trade and the concentration of stores of new types of highly flammable products, particularly along the river, created a new vulnerability to disaster that made earlier forms of fire control inadequate.

scholarly journals Status of Sewage Water Generation in Karnataka, India

2019 ◽  
pp. 1-5
Author(s):  
V. S. Radhika ◽  
G. N. Kulkarni
Keyword(s):  
Population Growth ◽  
Time Series Data ◽  
Critical Factor ◽  
High Water ◽  
Sewage Water ◽  
Series Data ◽  
Twin Cities ◽  
Economic Activities ◽  
Living Organisms ◽  
Future Population

Water is vital to the existence of all living organisms, but this valuable resource is increasingly being threatened with increasing population growth and demand for high water quality for both domestic purposes and economic activities. A critical factor in the estimation of waste water generation is the population growth. The population of the Hubli-Dharwad twin cities is the second-largest in Karnataka, after Bangalore. The present study was based on secondary (time series) data. The population and sewage water flow in twin cities was found to have increased almost nearly about twelve times with the growth rate of 1.07 percent per annum. The projected future population and sewage water generation from twin cities for three decadal points of time showed an increasing trend. This poses a challenging task in future with respect to management. The farmers consider the resource as a boon which provides water for irrigation throughout the year and serves as a source of income and employment.

scholarly journals THE CORRELATION BETWEEN ROAD NETWORK PERFORMANCE AND LAND PRICE: CASE STUDY SALATIGA CITY

2019 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Edwin Hidayat ◽  
Iwan Rudiarto ◽  
Walter Timo De Vries
Keyword(s):  
Population Growth ◽  
Road Network ◽  
Network Performance ◽  
Demographic Data ◽  
Secondary Data ◽  
Urban Structure ◽  
Economic Activities ◽  
Land Price ◽  
Population Means ◽  
The Road

Many aspects should be considered in planning a sustainable city, two of them are transportation planning and population growth. These aspects have an essential role in changing the urban structure and the occupancy rate of a city. Population growth always related to people activity, particularly social and economic activities whereas road is the primary transportation to support people activities. Moreover, an increasing population means increasing the need for land for housing purpose. This need automatically triggered the land price fluctuation. This paper aims to examine the correlation of road network performance which represented by accessibility and mobility toward land price. The first method is secondary data collection such as the road network map, land price, and demographic data. Secondly, measure the road length using a GIS-based approach. Subsequently, statistical analysis is applied to understand the correlation among those data. The results showed that accessibility and mobility give positive relationship to the land price. However, in term of influence level, accessibility has a weak influence on the land price. Mobility has a relatively significant influence on land price.

scholarly journals Urban overspill and its upshot to the Bafoussam Emergent Metropolis in Cameroon

2020 ◽  
Vol 7 (4) ◽  
pp. 137-147
Author(s):  
Renz Tichafogwe Tende ◽  
Emmanuel Tchouongsi Kengmoe
Keyword(s):  
Population Growth ◽  
Arable Land ◽  
Secondary Data ◽  
Spatial Expansion ◽  
Economic Activities ◽  
Commercial Activities ◽  
Sub Saharan ◽  
Landsat Satellite ◽  
The Town ◽  
Urban Disorder

Unbridled urban sprawl in Sub-Saharan African cities reflects an infirmity that warrants both vaccination and treatment to curb urban disorder and its costs. This article divulges that rapid population growth, spatial expansion and economic activities are responsible for the urban overspill and its upshot in Bafoussam. Unplanned settlement from the rapid growing population has led to the development of slumps and reduction of arable land. A multi-spectral Landsat satellite imagery of 1988, 2001 and 2016 was used to determine the spatial expansion of the town over a period of 30 years. Field observation and interview sessions were done to have information on the proliferation of economic activities to the expansion of the town. An in-depth secondary data collection was done to gather information on the rate of population growth of Bafoussam. The data was processed to generate maps through the ArcGIS 10.4 and Adobe Illustrator CS soft wares and tables through SPSS 17 for results and analyses. Results from findings propound a significant increase in the built-up area of Bafoussam of 19.34% in 1988, 50.30% in 2001 and 79.41% in 2016. This increase was accompanied by a drop in the vegetation of 78.64% in 1988, 48.50% in 2001 and 20.07% in 2016. The built-up increase was provoked by a persistent rise in the population of the city from 62, 239 inhabitants in 1976 to 112,681 in 1987 and 282,800 in 2010. Industrial and commercial activities developed in the course of the twin increase and unfortunately with no control triggered urban disorder. This article advocates for a mandatory implementation of the urban norms in Cameroon to liberate Bafoussam from the drowning overspill syndrome plaguing Sub-Saharan cities.

Influence of Ephemeral Gully Location Prediction on Soil Erosion Estimation

2021 ◽  
Author(s):  
Chunmei Wang ◽  
Richard Cruse ◽  
Gelder Brian ◽  
Herzmann Daryl ◽  
Thompson Kelly ◽  
...  
Keyword(s):  
Soil Loss ◽  
Flow Path ◽  
Soil Conditions ◽  
Water Runoff ◽  
Clear Understanding ◽  
Location Prediction ◽  
Model Output ◽  
Erosion Modeling ◽  
Ephemeral Gully ◽  
Yearly Average

<p>Predicting ephemeral gully (EG) location is essential for erosion modeling because it helps confine portions of the hillslope segment above locations that gully and channel soil loss processes dominate. In the Water Erosion Prediction Project (WEPP), the prediction of EG occurrence location influences the model results by shorting or expanding the flow path, which the hillslope erosion modeling relies on. This research aimed to analyze the sensitivity of EG locations prediction accuracy on WEPP model output within the framework of the Daily Erosion Project (DEP) at the regional scale. DEP is a near real-time estimator of precipitation, soil detachment, hillslope soil loss, and water runoff using WEPP as the erosion model. The above estimations are conducted on randomly selected and spatially distributed flowpaths, and the means are reported at the HUC12 watershed level. The flowpaths are identified based on Digital Elevation Model (DEM) grid cell and D8 connectivity to adjacent cells. A flow path starts at a cell such that all adjacent cells are at a lower elevation, that is, no other adjacent cell directs flow into it and ends when sufficient flow concentration and soil conditions occur that channel erosion processes dominate soil loss where usually EGs occurrence. In this research, the DEP flowpaths, down to and including ephemeral gully heads, were surveyed in 8 HUC12 watersheds distributed in 8 different Iowa MLRAs using high-resolution imagery in-field measurement. A grid order model was used as a method for EG location prediction. The sensitivity of accuracy of EG location prediction on WEPP/DEP soil detachment, hillslope soil loss, and water runoff model output was explored at hillslope, watershed, and regional spatial scale with both extreme rainfall events and yearly average erosion modeling. This research will allow a more clear understanding of EG prediction influence on erosion modeling and help improve the accuracy of erosion modeling by using WEPP / DEP.</p>

Flood damage assessment to economic activities: implementation and transferability of French methodology

2021 ◽  
Author(s):  
Frédéric Grelot ◽  
Marta Galliani ◽  
Pauline Bremond ◽  
Daniela Molinari ◽  
Lilian Pugnet ◽  
...  
Keyword(s):  
Residential Buildings ◽  
Flood Damage ◽  
Economic Activities ◽  
Damage Functions ◽  
Flood Prevention ◽  
Damage Modelling ◽  
French Case ◽  
Damage Data ◽  
The City

<p>Since 2010, a national method is available in France for multi-criteria analysis of flood prevention projects. The method uses national damage functions to estimate losses to the different exposed items, including economic activities. Despite the business sector suffers significant losses in case of flood, flood damage modelling to businesses is less advanced than for other exposed sectors, as e.g. residential buildings. Reasons are many and include: the high variability of activities types composing this sector and then the difficulty of standardisation (above all when contents are considered), and the lack of data to understand and quantify damage and validate existing modelling tools. The collection of damage data in two case studies, in France and in Italy, and the collaboration between two research groups in the two countries allowed to study the applicability, the validity, and the transferability of the French damage functions for economic activities to Italy. Firstly, the functions were tested and validated in a French case study, i.e. the flood that affected the Île-de-France Region in 2016. This validation exercise faced the problem of working with few information about the identity of the activities, and propose a solution; moreover, it allowed to verify the actual availability of input data to implement the functions in France and pointed out the paucity of information to validate the methodology. Testing the functions in a foreign case study, i.e. the flood occurred in 2002 in Italy in the city of Lodi, allowed instead to verify the transferability of the method.</p>

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