FACTORS AFFECTING THE SELECTION OF CONTRACTORS IN GREEN BUILDING PROJECTS

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Asli Gurgun ◽  
Mehmet Ozbek
Keyword(s):  
Selection Process ◽  
Green Building ◽  
Sustainable Construction ◽  
Extensive Literature ◽  
Rating Systems ◽  
Past Performance ◽  
Building Projects ◽  
Factors Affecting ◽  
Major Factors ◽  
Selection Of

The growing interest in sustainable design and construction introduces new set of risks specific to green building projects. One of the challenges in green building projects that require special consideration is the selection of the appropriate contractors to ensure that the targeted sustainability goals of the projects will be achieved. Rapid growth of green building movement requires that contractors that are willing to be active in sustainable construction learn green building rating systems, application processes, green products, and related laws and regulations. This study investigates major factors affecting the selection of contractors that will be responsible for the construction of projects aiming certification through green building certification systems. An extensive literature survey was completed to identify the significant factors in the selection process, which are important for the successful completion of the projects. It is found that experience in green building projects and certification system procedures, managerial approach, technical approach, price, past performance, and qualifications are important in the selection of contractors in green buildings.

scholarly journals LEED–PDRI Framework for Pre-project Planning of Sustainable Building Projects

2007 ◽  
Vol 2 (3) ◽  
pp. 123-143 ◽  
Author(s):  
Gamini Weerasinghe ◽  
Karthik Soundararajan ◽  
Janaka Ruwanpura
Keyword(s):  
Construction Projects ◽  
Green Building ◽  
The United States ◽  
Project Planning ◽  
Sustainable Construction ◽  
Rating Systems ◽  
Building Projects ◽  
Sustainable Building ◽  
Environmentally Sustainable ◽  
Sustainable Projects

Green buildings help in sustainability, in terms of achieving energy efficiency and minimizing the utilization of natural resources. Additional benefits include long-term sustainable building management and maintenance. There is, therefore, compelling motivation for the building of sustainable projects. This inspiration has led to the development of the leadership in energy and environmental design (LEED) rating systems and projects by the United States Green Building Council and the Canadian Green Building Council. Proper building project management (BPM) of such projects is warranted. Pre-project planning is a crucial part of BPM that ensures delivery and performance of construction projects. Pre-project planning is defined as the process that encompasses all the tasks between project initiation and detailed design. There is a positive relationship between comprehensive pre-project planning and enhanced project performance. Given the motivation for environmentally sustainable projects and proper management of constructing such projects, diligent pre-project planning for such projects is required. This paper investigates the use of the LEED rating system in pre-project planning of sustainable construction projects by developing a matrix that combines the LEED and the Project Definition Rating Index (PDRI) developed by the Construction Industry Institute. The conceptual matrix and its application to a case study demonstrates that the value of linking pre-project planning with LEED to improve the decision making process during planning and designing of building projects to improve sustainability.

Green Building Construction Projects in Singapore: Cost Premiums and Cost Performance

2017 ◽  
Vol 48 (4) ◽  
pp. 67-79 ◽  
Author(s):  
Bon-Gang Hwang ◽  
Lei Zhu ◽  
Yinglin Wang ◽  
Xinyi Cheong
Keyword(s):  
Construction Projects ◽  
Green Building ◽  
Building Construction ◽  
Extensive Literature ◽  
Cost Performance ◽  
Building Projects ◽  
Factors Affecting ◽  
Feasible Solutions ◽  
The Cost ◽  
Significant Factors

This study aims to investigate the cost premiums and cost performance of green building projects. After an extensive literature review, relevant data from 242 traditional and 121 green building projects performed by 30 different companies were collected through a survey in Singapore. The results indicate that the green cost premiums range from 5% to 10% and that project type and size are significant factors affecting the cost premiums. Furthermore, the cost performance is mostly over budget, ranging from 4.5% to 7%. Finally, this study proposes some feasible solutions for cost premiums reduction and cost performance improvement.

scholarly journals Sustainable Construction by Means of Improved Material Selection Process

2019 ◽  
Vol 3 (1) ◽  
pp. 85 ◽  
Author(s):  
Koorosh Gharehbaghi ◽  
Maged Georgy
Keyword(s):  
Energy Savings ◽  
Material Selection ◽  
Selection Process ◽  
Sustainable Construction ◽  
Construction Operation ◽  
Selection Factors ◽  
Strength And Durability ◽  
Operation Cost ◽  
Selection Of

Whilst sustainable construction relates to both a building’s structure and the use of proper life cycle processes, the selection of the most appropriate material/s is deemed a considerable undertaking. Throughout a building’s lifecycle that extends from design, construction, operation, maintenance, renovation, until demolition, the selection of sustainable material/s is a particularly crucial task for the development and establishment of such structures. Traditionally, there are three main materials for general construction: (1) Steel, (2) Concrete and (3) Timber. These materials not only influence the function within the structure, but also affect the operation cost and energy usage. Operation cost reduction and energy savings are typically elements of the sustainable construction sphere. However, in developing countries, there is a variety of highly critical factors, which can impact material selection as well as the long-term sustainability of the structure, including: Fire Performance, Environmental Impact, Structural Performance (strength and durability), and Functioning Capabilities. Accordingly, this paper will first compare the sustainability of these three key materials and then converse with appropriate processes for material selection. Attention will be given to the sustainable construction recompense associated with the different material selection factors. Doing so ensures a more sustainable built environment by means of an improved material selection process.

scholarly journals Evaluating Alternate Post-Mining Land-Uses: A Review

2015 ◽  
Vol 5 (1) ◽  
pp. 14 ◽  
Author(s):  
Charles Mborah ◽  
Kenneth J. Bansah ◽  
Mark K. Boateng
Keyword(s):  
Land Use ◽  
Selection Process ◽  
Land Uses ◽  
Land Resources ◽  
Ownership Type ◽  
Main Challenge ◽  
Literature Reviews ◽  
Ultimate Objective ◽  
Major Factors ◽  
Selection Of

<p>The ultimate objective of post-mine land-use and reclamation planning is to identify appropriate alternate land uses to which mined land could be put. This will ensure that land-use and morphology of the location will be capable of supporting either the prior land-use or pre-mining environment. The main challenge is usually, the choice of variables that must be considered in deciding a particular post-mining land-use. Literature reviews were conducted to identify the major factors needed to be considered in the selection of a post-mining land-use. This paper also looks at the most commonly practiced and accepted post-mining land-use techniques. Factors identified as important in the selection process include land resources (e.g. physical, biological and cultural characteristics), ownership, type of mining activity, legal requirements, location, needs of the community, economic, environmental, technical and social factors. In a broad categorization, all post-mining land-uses could be placed under one of the following land-use: agriculture, forestry, lake or pool, intensive recreational land-use, non-intensive recreational land-use, conservation and pit backfilling. However, the objective of any particular post-mining land use should be achieving economic and sustainable outcomes which meet human wants and needs, and protect life and the environment.</p>

scholarly journals Effects of Design Quality on Delay in Residential Construction Projects

2021 ◽  
Vol 28 (1) ◽  
pp. 118-129
Author(s):  
Ibrahim Mahamid
Keyword(s):  
Construction Projects ◽  
Design Quality ◽  
Frequent Change ◽  
Building Projects ◽  
Factors Affecting ◽  
Schedule Delay ◽  
Major Factors ◽  
Design Schedule ◽  
The Impact ◽  
Project Delay

This study is conducted to establish the effect of design quality on project delay in building projects. It aims at: 1) investigating the major factors of design quality, 2) identifying the main delay factors in building projects, 2) establishing the relationship between design quality and delay in building projects. To achieve these objectives, a questionnaire survey is performed. Seventeen (17) factors that might affect design quality, and 15 delay factors are listed in a questionnaire form. Sixty (60) contractors and 40 consultants are asked to identify the severity of the identified factors. Results indicate that the top factors affecting design quality are: delay in payments by client for design services, staff allocation for many projects at the same time, copying and modifying from previous work to minimize time and cost, tight design schedule, lack of designer knowledge with techniques and materials available in the market. The study also concludes that the top five delay factors include: payments delay, poor labor productivity, lack of skilled manpower, frequent change orders and rework. Regression analysis for data collected from 36 building projects shows a good correlation between design quality and delay in projects. This study is the first one that addresses the problem of design quality in the West Bank in Palestine. Furthermore, it is the first study that addresses the effect of design quality on project delay in Palestine and the neighboring countries. It is hoped to be helpful for researchers and professionals to understand the impact of design quality on schedule delay.

scholarly journals A Study of the Green Building Benefits in Apartment Buildings According to Real Estate Prices: Case of Non-Capital Areas in South Korea

2020 ◽  
Vol 12 (6) ◽  
pp. 2206
Author(s):  
Kee Han Kim ◽  
Sang-Sub Jeon ◽  
Amina Irakoze ◽  
Ki-young Son
Keyword(s):  
Real Estate ◽  
South Korea ◽  
Green Building ◽  
Seed Certification ◽  
Factors Affecting ◽  
The Real ◽  
The Real Estate ◽  
Additional Costs ◽  
Real Estate Prices ◽  
Major Factors

Recently, the importance of green building certification in consideration of environmentally friendly factors is being emphasized more when constructing buildings in South Korea. The Green Standard for Energy and Environmental Design (G-SEED) is one of the strategies used by the Korean government to effectively reduce building environmental loads. However, due to the large investment needed to acquire green building certification, building owners, stakeholders, and designers often contemplate how to balance G-SEED certification benefits and the additional costs they involve. Therefore, the purpose of this study was to assess the benefits of G-SEED certification in terms of post-occupancy financial advantages through a comparative analysis of real estate prices of apartments in the Yeongnam area. All of the major factors affecting apartment real estate prices in South Korea were considered, and the real estate price difference between G-SEED certified and non-certified apartments was determined through a one-sample t-test. The results demonstrated that G-SEED certified apartment real estate prices were 9.52% higher than non-certified apartments. This study concluded that G-SEED certification–related investment is worth the additional cost as it increases the real estate value of a building.

Green building projects: schedule performance, influential factors and solutions

2015 ◽  
Vol 22 (3) ◽  
pp. 327-346 ◽  
Author(s):  
Bon-Gang Hwang ◽  
Xianbo Zhao ◽  
Lene Lay Ghim Tan
Keyword(s):  
Negative Impact ◽  
Green Building ◽  
High Response Rate ◽  
Influential Factors ◽  
Clear Understanding ◽  
Critical Factors ◽  
Building Projects ◽  
Content Type ◽  
Factors Affecting ◽  
Schedule Performance

Purpose – The purposes of this paper are to: investigate schedule performance of new and retrofitting green building projects; identify the critical factors that influence the schedule performance of new and retrofitting green building projects; and provide solutions to improve schedule performance of new and retrofitting green building projects. Design/methodology/approach – A questionnaire survey were conducted and responses were received from 34 firms experienced in green building projects in Singapore. After the data from the survey had been analyzed, face-to-face interviews were conducted with two senior project managers to solicit comments on the survey results. Findings – This study identified the degree of project delay in 98 new green building projects and 51 retrofitting green building projects in Singapore. The result indicated that 22 percent of the Singaporean green building projects were plagued with delay and retrofitting projects had a significantly higher likelihood of delay and significantly longer extension than new projects. In addition, “consultant cooperation to solve problems” was the most influential to schedule performance of both new and retrofitting green building projects, and the two project groups agreed on the overall ranking of the factors affecting schedule performance. Research limitations/implications – There may be geographical limitation on the conclusions drawn from the findings. Also, the sample size was still small, despite a relatively high response rate. In addition, the majority of the respondents were contractors as other project players were reluctant to respond to the survey. Practical implications – This study provides a clear understanding of the schedule performance of green building projects as well as the critical factors that should be highlighted when constructing green building projects. Also, strategies to overcome the negative impact of these factors allow practitioners to better deal with the potential causes of delay and to attain the schedule performance. Originality/value – Although construction delays have been widely investigated in previous studies relating to construction management, few have attempted to analyze the schedule performance of new and retrofitting green buildings. Thus, this study adds significantly to the existing research on both green building and construction delay.

scholarly journals A CHECKLIST FOR ASSESSING SUSTAINABILITY PERFORMANCE OF CONSTRUCTION PROJECTS

2007 ◽  
Vol 13 (4) ◽  
pp. 273-281 ◽  
Author(s):  
Li-Yin Shen ◽  
Jian Li Hao ◽  
Vivian Wing-Yan Tam ◽  
Hong Yao
Keyword(s):  
Sustainable Development ◽  
Construction Projects ◽  
Sustainable Construction ◽  
Management Skills ◽  
Factors Affecting ◽  
Sustainability Performance ◽  
Sustainable Performance ◽  
Project Sustainability ◽  
Major Factors ◽  
Construction Practice

Construction sustainability performance is indispensable to the attainment of sustainable development. Various techniques and management skills have previously been developed to help improving sustainable performance from implementing construction projects. However, these techniques seem not being effectively implemented due to the fragmentation and poor coordination among various construction participants. There is a lack of consistency and holistic methods to help participants implementing sustainable construction practice at various stages of project realisation. This paper develops a framework of sustainability performance checklist to help understanding the major factors affecting a project sustainability performance across its life cycle. This framework enables all project parties to assess the project sustainability performance in a consistent and holistic way, thus improving the cooperation among all parties to attain satisfactory project sustainability performance.

scholarly journals The Role of Contractor's Experience Factors In The Process of Prequalification for Green Buildings Projects.

2019 ◽  
Vol 8 (9) ◽  
pp. 1297-1302 ◽  
Keyword(s):  
Geometric Mean ◽  
Health And Safety ◽  
Green Building ◽  
Green Buildings ◽  
Safety Performance ◽  
Building Projects ◽  
Expert’S Opinion ◽  
Potential Risks ◽  
Selection Of

Few numbers of articles dealt with the factors that affecting the selection of contractors in green buildings. This study has conducted to identify the Role Of Contractor's Experience Factors In The Process Of Prequalification For Green Buildings Projects. A total of four sub-factors which are (Experience In Delivering Green Building, The Contractor's & Sub-Contractors Experience In Construction Of Intended Product/Project Type, Recommendation Letters From Past Client, Past Health And Safety Performance); Classified as being used widely in the process of contractors’ prequalification in Turkey, and falls according to the opinion of the experts under the factor of Contractor’s Experience. These sub-factors have extracted from a rigorous literature review of a gross 120 articles published in the past 18 years. Then nine extensive interviews have established with engineers and architects who enrolled in Green Building projects, to score the above-mentioned sub-factors relatively on a scale from (1 to 9) to facilitate the utilization of the Analytical Hierarchy Process method (AHP). To avoid any variations in the expert's opinion regarding the priorities Geometric Mean was adopted, and finally, the weight of the sub-factors that used during the process of selection has determined. The results showed that the factors are ranked as the following: (Experience In Delivering Green Building), (The Contractor's & Sub-Contractors Experience In Construction Of Intended Product/Project Type), (Past Health And Safety Performance), (Recommendation Letters From Past Client) Respectively. Furthermore, both of (Experience In Delivering Green Building), and (The Contractor's & Sub-Contractors Experience In Construction Of Intended Product/Project Type) have recognized as dominant factors with a total weight of 58.5%. according to the calculations that based on the evaluations of interviewees.This study aids to minimize the potential risks associated with the decision-making process, which related to the selection of the best contractor. In other words, it helps to award the project to a contractor who can achieve the successful completion of the project, with a preliminary guarantee of attainment for Green Certificate for it through the accumulated experience in this area

scholarly journals Critical Success Factors for Implementation of Green Building in India

2021 ◽  
Vol 1203 (3) ◽  
pp. 032061
Author(s):  
Boddapati Ganesh Kumar ◽  
Abhay Tawalare
Keyword(s):  
Success Factors ◽  
Small Sample Size ◽  
Green Building ◽  
Green Buildings ◽  
Small Sample ◽  
Primary Data ◽  
Extensive Literature ◽  
Critical Factors ◽  
Factors Affecting ◽  
Building Technology

Abstract For the sustainable built environment, Green Building technology is the most widely adopted trend worldwide, however, it is in a nascent stage in India. Even though the use of green building technology is advantageous over the lifecycle of the project, people are hesitant to adopt. Therefore, this study aims at identifying the critical factors affecting the implementation of green buildings in India. For this purpose, an extensive literature review was done to identify factors affecting the implementation of green buildings. In total 27 factors were identified which may be critical for the adoption of green building technology widely in an Indian context. The questionnaire was prepared using the five-point Likert scale. The questionnaire was sent through emails to 150 consultants in India and 52 valid responses received in return. The primary data is analyzed using factor analysis. The critical factors found are time and knowledge constraints; technical constraints; authenticity of research and awareness about Green Building. Though the findings of this study are based on the small sample size, it will be beneficial to the policymakers

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