scholarly journals The Riyadh Urban Growth Boundary: An Analysis of the Factors Affecting its Efficiency on Restraining Sprawl

2021 ◽  
Vol 8 (3) ◽  
pp. 17-25
Author(s):  
Mohamed Saleh Amer ◽  
Mohammad Rafee Majid ◽  
Tahar A. Ledraa
Keyword(s):  
Urban Sprawl ◽  
Urban Growth ◽  
City Planning ◽  
Monitoring And Evaluation ◽  
City Development ◽  
Structured Interviews ◽  
Factors Affecting ◽  
Riyadh City ◽  
Urban Growth Boundaries ◽  
The Cost

Recently, research on sprawl was increasing due to its impacts on the economy, society, and environment. Several studies have focused on the application of containment strategies to curb urban sprawl. Urban growth boundaries (UGBs) were among the containment policies adopted to tackle the issue of sprawling cities. This paper set out to undertake an analysis of the factors influencing the performance of the UGB of Riyadh City. A qualitative data analysis using NVivo12 software was adopted. To collect the required data of UGB, semi-structured interviews were conducted with nine experts involved in urban management, Riyadh city development, and other planning agencies. If the application of UGB policy in the western countries has managed to restrain more or less city sprawl, its replication to the case of Riyadh seems to have had some adverse impacts. That is, instead of controlling urban sprawl, it has stimulated it. The reasons may lie in the deficiency of monitoring and evaluation of urban studies, free provision of infrastructure, and lack of coordination between different city planning agencies. Understanding the factors affecting the UGB efficiency​will assist policymakers and urban planners in reducing the spread of scattered and leapfrog residential development, lowering the cost of service supply and promoting infill development

scholarly journals Assessments of Biodiversity and Habitat Services in Cities – Exemplified by Dresden (Germany) and Liberec (Czech Republic)

2020 ◽  
Vol 39 (2) ◽  
pp. 174-189
Author(s):  
Olaf Bastian ◽  
Pavel Cudlín ◽  
Vilém Pechanec ◽  
Patrycia Brzoska ◽  
Lenka Štěrbová ◽  
...  
Keyword(s):  
Decision Making ◽  
Nature Conservation ◽  
City Planning ◽  
Habitat Diversity ◽  
Development Planning ◽  
Urban Nature ◽  
City Development ◽  
Structured Interviews ◽  
Daily Work ◽  
Almost All

AbstractThe choice of suitable biodiversity assessment methods for practical purposes in city planning and decision-making is still a challenging problem. Despite the availability of a wide variety of methods for almost all dimensions of diversity (mainly species and habitat diversity, including spatial aspects), few of them have entered the practical ‘daily’ work. In the example of in-depth examinations in German and Czech cities (e.g., Dresden and Liberec), it was found that the most frequently applied analyses are those of protected species and habitats in urban nature conservation in general, and particularly in city development planning to derive avoidance, protection and compensation measures. Preference analyses (questionnaires, structured interviews) are becoming increasingly popular. Economic calculations of habitat values and the valuation of ecosystem services are still in their infancy. We will present methods that are presently being applied or could be included in a practical methodological toolkit to analyse and valuate biodiversity in urban nature conservation, city planning and decision-making.

scholarly journals Delineation of Urban Growth Boundaries Using a Patch-Based Cellular Automata Model under Multiple Spatial and Socio-Economic Scenarios

2019 ◽  
Vol 11 (21) ◽  
pp. 6159
Author(s):  
Yang ◽  
Gong ◽  
Tang ◽  
Shen ◽  
Liu ◽  
...  
Keyword(s):  
Urban Sprawl ◽  
Urban Growth ◽  
Patch Size ◽  
Urban Land ◽  
Natural Ecosystems ◽  
Cellular Automata Model ◽  
Proposed Model ◽  
Common Strategy ◽  
Ca Model ◽  
Urban Growth Boundaries

The urban growth boundary (UGB) plays an important role in the regulation of urban sprawl and the conservation of natural ecosystems. The delineation of UGBs is a common strategy in urban planning, especially in metropolitan areas undergoing fast expansion. However, reliable tools for the delineation of informed UGBs are still not widely available for planners. In this study, a patch-based cellular automaton (CA) model was applied to build UGBs, in which urban expansions were represented as organic and spontaneous patch growing processes. The proposed CA model enables the modeler to build various spatial and socio-economic scenarios for UGB delineation. Parameters that control the patch size and shape, along with the spatial compactness of an urban growth pattern, were optimized using a genetic algorithm. A random forest model was employed to estimate the probability of urban development. Six scenarios in terms of the demand and the spatial pattern of urban land allocation were constructed to generate UGB alternatives based on the simulated urban land maps from the CA model. Application of the proposed model in Ezhou, China from 2004 to 2030 reveals that the model proposed in this study can help urban planners make informed decisions on the delineation of UGBs under different scenarios.

Containing urban sprawl—Evaluating effectiveness of urban growth boundaries set by the Swiss Land Use Plan

2009 ◽  
Vol 26 (2) ◽  
pp. 224-232 ◽  
Author(s):  
Maria-Pia Gennaio ◽  
Anna M. Hersperger ◽  
Matthias Bürgi
Keyword(s):  
Land Use ◽  
Urban Sprawl ◽  
Urban Growth ◽  
Urban Growth Boundaries ◽  
Land Use Plan

Health system barriers to accessing care for children with weight issues in New Zealand: An interview-based study

2021 ◽  
pp. 135581962110160
Author(s):  
Cervantée EK Wild ◽  
Ngauru Rawiri ◽  
Esther J Willing ◽  
Paul L Hofman ◽  
Yvonne C Anderson
Keyword(s):  
New Zealand ◽  
Health System ◽  
Healthy Lifestyle ◽  
National Policy ◽  
Service Level ◽  
Structured Interviews ◽  
Factors Affecting ◽  
Outcomes For Children ◽  
Family Based ◽  
The Cost

Objective To identify barriers created and maintained by the health system affecting engagement in a family-based multidisciplinary healthy lifestyle programme for children and adolescents in New Zealand. Methods We conducted 64 semi-structured interviews with participants of the programme (n = 71) with varying levels of engagement, including those who declined contact after their referral. Half the interviews were with families with Māori children, allowing for appropriate representation. Interviews were analysed using thematic analysis. Results Five health system factors affecting engagement were identified: the national policy environment, funding constraints, lack of coordination between services, difficulty navigating the health system, and the cost of primary health care. Conclusions Engaging with a health system that creates and maintains substantial barriers to accessing services is difficult, affecting programme engagement, even where service-level barriers have been minimised. Lack of access remains a crucial barrier to improved health outcomes for children and their families experiencing childhood obesity in New Zealand. There is a need for comprehensive approaches that are accompanied by a clear implementation strategy and coordinated across sectors.

WISATA BAHARI PADA ZONA PEMANFAATAN TAMAN NASIONAL MANUSELA: POTENSI DAN FAKTOR PENGARUH PENGEMBANGAN

2018 ◽  
Vol 2 (2) ◽  
pp. 66-73
Author(s):  
Ivonne R. G. Kaya ◽  
Fildo De Lima
Keyword(s):  
National Park ◽  
Point Of View ◽  
Structured Interviews ◽  
Factors Affecting ◽  
Tourist Attractions ◽  
Income Sources ◽  
Economic Progress ◽  
Key Driver ◽  
Tourism Attractions ◽  
Depth Interviews

Tourism has become one of the major players in ‎international commerce and represents one of the main income ‎sources for many developing countries at the same time. These dynamics have turned tourism into a key driver for socio-‎economic progress.‎ This article described the potential of tourism attraction and factor affecting the development of marine tourism area in the utilization zone of Manusela National Park. Semi-structured interviews, in-depth interviews and participant observations were conducted with respondent (n=110) in Bellarizky, Air Belanda, Ora Beach and Lizar Bahari resort. The potential of tourist attractions in the utilization zone of Manusela National Park is as a snorkeling, diving and point of view. Factors affecting the development are service, transportation, supporting facilities and tourism attractions.

scholarly journals Urban Sustainability at the Cost of Rural Unsustainability

2021 ◽  
Vol 13 (10) ◽  
pp. 5466
Author(s):  
Guangwei Huang
Keyword(s):  
Urban Sprawl ◽  
Rural Areas ◽  
Urban Sustainability ◽  
Negative Externalities ◽  
Large Cities ◽  
Rural Sustainability ◽  
Use Of Resources ◽  
The Cost ◽  
New Framework ◽  
Japan And China

Urban sustainability refers to building and maintaining cities that can continue to function without running out of resources. However, growing cities require more land and urban sprawl has transformed surrounding rural areas into urbanized settlements. Furthermore, the prosperity of large cities depends on the supply of both natural and human resources from rural areas, either nearby or remote. On the other hand, the use of resources of rural areas by cities may cause negative externalities to rural areas, affecting their sustainability. Therefore, a critical, but very much neglected issue, is how unban sustainability should be pursued without affecting rural sustainability. In this study, cases in Japan and China were analyzed from resources and population migration perspectives to provide evidence for the possibility that urban sustainability might have been pursued at the cost of rural unsustainability. It was intended to develop a better understanding of urban sustainability through the lens of externalities. Based on the analysis, a new framework for urban sustainability study was proposed, which consists of three new pillars. Namely, externality, vulnerability, and population instability.

scholarly journals Factors Affecting the Rate of Fuel Consumption in Aircrafts

2021 ◽  
Vol 13 (14) ◽  
pp. 8066
Author(s):  
Thowayeb H. Hassan ◽  
Abu Elnasr E. Sobaih ◽  
Amany E. Salem
Keyword(s):  
Fuel Consumption ◽  
Positive Association ◽  
Pollutant Emissions ◽  
Aviation Industry ◽  
Factors Affecting ◽  
Fuel Flow ◽  
Homogeneity Of Variance ◽  
Strong Positive Association ◽  
Ground Distance ◽  
The Cost

The cost of fuel and its availability are among the most major concerns for aircrafts and the aviation industry overall. Environmental difficulties with chemical pollutant emissions emitted by aviation machines are also connected to fuel consumption. As a result, it is crucial to examine factors that affect the overall fuel usage and consumption in the airport-based aviation industry. Several variables were investigated related to the total fuel consumed, such as dry operating weight (DOW) (KG), zero-fuel weight (ZFW), take-off weight (TOW), air distance (AIR DIST) (KM), and ground distance (GDN DIST). Analysis of the correlation between total fuel consumed as well as the extra fuel and selected variables was conducted. The results showed that the most positively associated factors with the total used fuel were the air distance (r2 = 0.86, p < 0.01), ground distance (r2 = 0.78, p < 0.01), TOW (r2 = 0.68, p < 0.01), and flight time (r2 = 0.68, p < 0.01). There was also a strong positive association between the average fuel flow (FF) and actual TOW (r2 = 0.74, p < 0.01) as well as ZFW (r2 = 0.61, p < 0.01). The generalized linear model (GLM) was utilized to assess the predictions of total energy usage after evaluating important outliers, stability of the homogeneity of variance, and the normalization of the parameter estimation. The results of multiple linear regression revealed that the most significant predictors of the total consumed fuel were the actual ZFW (p < 0.01), actual TOW (p < 0.01), and actual average FF (p < 0.05). The results interestingly confirmed that wind speed has some consequences and effects on arrival fuel usage. The result reflects that thermal and hydrodynamic economies impact on the flying fuel economy. The research has various implications for both scholars and practitioners of aviation industry.

scholarly journals Identifying Risk Factors Affecting the Usage of Digital and Social Media: A Preliminary Qualitative Study in the Dental Profession and Dental Education

2021 ◽  
Vol 9 (5) ◽  
pp. 53
Author(s):  
Rayan Sharka ◽  
Jonathan P. San Diego ◽  
Melanie Nasseripour ◽  
Avijit Banerjee
Keyword(s):  
Risk Factors ◽  
Qualitative Study ◽  
Perceived Risk ◽  
Dental Education ◽  
Dental Students ◽  
General Context ◽  
Structured Interviews ◽  
Factors Affecting ◽  
The Uk ◽  
Dental Professionals

Aims: This study aimed to identify the risk factors of using DSM to provide an insight into the inherent implications this has on dental professionals in practice and trainee professionals’ education. Materials and methods: Twenty-one participants (10 dental professionals and 11 undergraduate and postgraduate dental students) participated in this qualitative study using semi-structured interviews in a dental school in the UK. The interviews were analysed and categorised into themes, some of which were identified from previous literature (e.g., privacy and psychological risks) and others emerged from the data (e.g., deceptive and misleading information). Results: The thematic analysis of interview transcripts identified nine perceived risk themes. Three themes were associated with the use of DSM in the general context, and six themes were related to the use of DSM in professional and education context. Conclusions: This study provided evidence to understand the risk factors of using DSM in dental education and the profession, but the magnitude of these risks on the uptake and usefulness of DSM needs to be assessed.

scholarly journals Economic burden of childhood diarrhea in Burundi

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Fulgence Niyibitegeka ◽  
Arthorn Riewpaiboon ◽  
Sitaporn Youngkong ◽  
Montarat Thavorncharoensap
Keyword(s):  
Economic Burden ◽  
Cost Model ◽  
Primary Treatment ◽  
Management Program ◽  
Community Based ◽  
Factors Affecting ◽  
Hospitalization Costs ◽  
Illness Study ◽  
The Cost ◽  
Substantial Economic Burden

Abstract Background In 2016, diarrhea killed around 7 children aged under 5 years per 1000 live births in Burundi. The objective of this study was to estimate the economic burden associated with diarrhea in Burundi and to examine factors affecting the cost to provide economic evidence useful for the policymaking about clinical management of diarrhea. Methods The study was designed as a prospective cost-of-illness study using an incidence-based approach from the societal perspective. The study included patients aged under 5 years with acute non-bloody diarrhea who visited Buyenzi health center and Prince Regent Charles hospital from November to December 2019. Data were collected through interviews with patients’ caregivers and review of patients’ medical and financial records. Multiple linear regression was performed to identify factors affecting cost, and a cost model was used to generate predictions of various clinical and care management costs. All costs were converted into international dollars for the year 2019. Results One hundred thirty-eight patients with an average age of 14.45 months were included in this study. Twenty-one percent of the total patients included were admitted. The average total cost per episode of diarrhea was Int$109.01. Outpatient visit and hospitalization costs per episode of diarrhea were Int$59.87 and Int$292, respectively. The costs were significantly affected by the health facility type, patient type, health insurance scheme, complications with dehydration, and duration of the episode before consultation. Our model indicates that the prevention of one case of dehydration results in savings of Int$16.81, accounting for approximately 11 times of the primary treatment cost of one case of diarrhea in the community-based management program for diarrhea in Burundi. Conclusion Diarrhea is associated with a substantial economic burden to society. Evidence from this study provides useful information to support health interventions aimed at prevention of diarrhea and dehydration related to diarrhea in Burundi. Appropriate and timely care provided to patients with diarrhea in their communities and primary health centers can significantly reduce the economic burden of diarrhea. Implementing a health policy to provide inexpensive treatment to prevent dehydration can save significant amount of health expenditure.

Sign in / Sign up

Export Citation Format

Share Document