Search results

1 – 5 of 5
To view the access options for this content please click here
Article
Publication date: 1 December 2014

Abdul-Rahman, Chen Wang, Azli Mohd Rahim, Siaw Chuing Loo and Nadzmi Miswan

Numerous researchers proved Vertical Greenery System VGS beneficial to buildings and surroundings. However, it is still not widely applied in the tropics like Malaysia…

Abstract

Numerous researchers proved Vertical Greenery System VGS beneficial to buildings and surroundings. However, it is still not widely applied in the tropics like Malaysia. This paper aims to determine the perceptions of VGS among the end users before it can be improved. A survey was conducted among 40 respondents, the end users of VGS in selected buildings within Klang Valley area. The collected data was analysed using statistical tests. From the findings, the primary benefits of VGS perceived by end users are enhancing visual quality, bringing nature harmony, reducing stress and reducing the urban heat island effects. The perceptions contradict with the results of ANOVA test between reducing the urban heat island effects and other VGS benefits that proves the need and effort to work on VGS in Malaysia.

Details

Open House International, vol. 39 no. 4
Type: Research Article
ISSN: 0168-2601

Keywords

To view the access options for this content please click here
Article
Publication date: 4 June 2019

Sheila Conejos, Michael Yit Lin Chew and Fikril Hakim Bin Azril

Vertical greenery systems (VGS) have been a widely accepted design strategy that contributes to creating sustainable built environments. However, green building…

Abstract

Purpose

Vertical greenery systems (VGS) have been a widely accepted design strategy that contributes to creating sustainable built environments. However, green building technologies (e.g. VGS) have grown in complexity which poses maintainability challenges. Designing with maintainability in mind is crucial in delivering efficient and sustainable buildings. This paper aims to assist designers and allied professionals in terms of integrating maintainability and sustainable design in developing high-rise VGS directly from its design inception.

Design/methodology/approach

The study is grounded on the “Green Maintainability” concept which link maintainability, sustainability and facility management right at the outset. The Green Maintainability factors are translated into critical design criteria which are used to analyze the selected instrumental case studies to evaluate the high-rise VGS performance and maintainability potential. A qualitative approach via the triangulation of data collected from relevant literatures, field surveys and walkthrough interviews is undertaken.

Findings

Findings have shown that the major VGS defects which are mostly occurring in the case studies are issues concerning fallen leaves and dirt accumulation; safety issues during cleaning and repairs; insufficient maintenance access; algae/ mould growth; withering plants; water stagnation/ ponding; poor/faulty irrigation and water dripping and unavailability of natural elements. Best practices and lessons learned revealed few design oversight and technical issues concerning high-rise VGS façade implementation. While maintenance cost, biodiversity and lack of coordination among involved professionals are the additional issues which emerged during the stakeholders’ walkthrough interviews.

Originality/value

Current researches conducted on the maintainability of green building technologies (e.g. high-rise VGS) are still few. This research study is the first comprehensive assessment to determine the green maintainability potential and performance of high-rise VGS in tropical conditions.

To view the access options for this content please click here
Article
Publication date: 8 August 2016

Michael Y.L. Chew and Sheila Conejos

The use of green wall technology in green buildings is a growing trend; however, more research is required about their maintainability, taking into account that…

Abstract

Purpose

The use of green wall technology in green buildings is a growing trend; however, more research is required about their maintainability, taking into account that maintainability at the design stage is a valuable strategy in achieving building efficiency and sustainability. Thus, the purpose of this paper is to determine the issues in operating and maintaining green walls, particularly in tropical areas like Singapore, leading to the development of a green maintainability framework.

Design/methodology/approach

This research uses a qualitative method that combines a thorough and systematic literature review, multiple case studies, field observation surveys and selected instrumental case studies with building plan appraisal and interviews to investigate the potential issues associated with the maintainability of green walls in tropical areas like Singapore.

Findings

The findings show that technical and environmental issues/defects are prevalent in the operation and maintainability of green wall technologies applied in green buildings located in tropical regions. Proper considerations of these findings will encourage green building designers and facilities managers to collaborate in the effective implementation of operations and maintenance of green building technologies.

Originality/value

This research gives new and significant information while identifying a clear knowledge gap. The paper recommends the formulation of a green maintainability framework with a set of design criteria that will serve as a benchmark in the future design of green walls. The green maintainability framework would be a valuable addition to green facilities management in ensuring the long-term maintainability and sustainability of existing and new green walls in tropical areas specifically in Singapore.

Details

Structural Survey, vol. 34 no. 4/5
Type: Research Article
ISSN: 0263-080X

Keywords

To view the access options for this content please click here
Article
Publication date: 3 April 2020

Mostafa Fadaeefath Abadi, Fariborz Haghighat and Fuzhan Nasiri

One of the most critical infrastructures is a data center (DC) because of it having many servers, computers and other equipment. DCs provide online services for various…

Abstract

Purpose

One of the most critical infrastructures is a data center (DC) because of it having many servers, computers and other equipment. DCs provide online services for various companies in the information technology (IT) industry. DC facilities should provide reliable online services while addressing the required quality and performance level considering maximum reliability and availability. The purpose of this study is to represent and classify the main findings in this area and to identify the main research gaps and shortcomings from the perspective of research.

Design/methodology/approach

This paper provides an organized and systematic literature review focusing on topics regarding the operation and maintenance (O&M) management of DCs.

Findings

Although there are several studies on O&M management systems for industrial systems and facilities, a limited number of studies with few methods and models have focused on DCs so far and these facilities require more attention. This paper identifies the issues and challenges for DC buildings and facilities and provides a conclusion of the findings to highlight the main research limitations for discovering new potential methods as future research opportunities.

Research limitations/implications

The paper has highlighted the main practical issues of DCs in terms of maintenance management. Several research works have been discussed specifically for DC’s maintenance, which makes this paper a credible source for researchers, maintenance managers and companies involved in the area of DC. Because several of the reviewed literature were based on real case studies, decision-makers in the DC maintenance sector can take advantage of new research on maintenance scheduling to reduce the costs of maintenance.

Originality/value

The paper has presented a comprehensive list of frequent keywords in recent publications related to O&M management for DCs. It has provided a categorized list of publications based on by their topic, methodology and case study. Because this paper has discussed research works specifically for DC’s maintenance, it is a credible source for researchers, maintenance managers and companies involved in the area of DCs.

Content available
Article
Publication date: 21 July 2020

Prajowal Manandhar, Prashanth Reddy Marpu and Zeyar Aung

We make use of the Volunteered Geographic Information (VGI) data to extract the total extent of the roads using remote sensing images. VGI data is often provided only as…

Abstract

We make use of the Volunteered Geographic Information (VGI) data to extract the total extent of the roads using remote sensing images. VGI data is often provided only as vector data represented by lines and not as full extent. Also, high geolocation accuracy is not guaranteed and it is common to observe misalignment with the target road segments by several pixels on the images. In this work, we use the prior information provided by the VGI and extract the full road extent even if there is significant mis-registration between the VGI and the image. The method consists of image segmentation and traversal of multiple agents along available VGI information. First, we perform image segmentation, and then we traverse through the fragmented road segments using autonomous agents to obtain a complete road map in a semi-automatic way once the seed-points are defined. The road center-line in the VGI guides the process and allows us to discover and extract the full extent of the road network based on the image data. The results demonstrate the validity and good performance of the proposed method for road extraction that reflects the actual road width despite the presence of disturbances such as shadows, cars and trees which shows the efficiency of the fusion of the VGI and satellite images.

Details

Applied Computing and Informatics, vol. 17 no. 1
Type: Research Article
ISSN: 2634-1964

Keywords

1 – 5 of 5