ENVIRONMENTAL SECURITY STRUCTURE FORMING THE GROUNDWORK FOR A TERRITORIAL ENVIRONMENTAL PASSPORT

Abstract. Aim. The aim of the study is to develop an environmental passport based on the structure of integrated environmental safety for construction projects. With each year that passes, environmental problems are coming increasingly to the fore. As part of mitigation efforts, an environmental passport is required to assess and control the environmental safety of construction areas and building sites.Method. The study is based on the development of a sound model of integrated environmental safety in construction projects and a methodology for calculating its indicators, in particular, the indicator of “degree of concentration”. The methodology of ranking the factors by importance is applied.Results. The structure of a building site's environmental passport is presented, taking the entire spectrum of its direct impact and environmental pollution into account, as well as the indirect impact, energy efficiency and autonomy of the site. The scope of the environmental passport comprises the entire building lifecycle, from design to operation and liquidation. An environmental passport en-ables the identification of problematic impacts on the geophraphical area from an environmental point of view, as well as giving recommendations for resolving problems. The threshold of environ-mental safety is set for each geographical area under assessment (i.e., for each building project and geographical area, it is determined by the composition of relevant factors) and the existing level of environmental pollution is determined along with the ecological reserve of the area and its steady state range, i.e., the acceptable level of deviation of environmental safety indicators, which depends on temporary factors and the objective reality of the functioning of the infrastructure of the evaluated territory. For the design and construction of building projects, indicators of environmental reserve and technogenic pressure of the facility are of fundamental importance when making decisions.Conclusion. The article presents a rational assessment of the main indicators of the environmental pass-port, providing the structure of a comprehensive assessment of environmental safety. The research results are presented and the scope of the environmental passport proposed in the assessment of geo-graphical areas and evaluation of facilities and design.

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A review of causes of variation order in the construction of terrace housing projects in Malaysia

MATEC Web of Conferences ◽

10.1051/matecconf/201927703013 ◽

2019 ◽

Vol 277 ◽

pp. 03013

Author(s):

Noraziah Mohammad ◽

Zabidi Hamzah

Keyword(s):

Construction Industry ◽

Construction Projects ◽

Construction Project ◽

Extensive Literature ◽

Time Cost ◽

Construction Time ◽

Building Projects ◽

Housing Projects ◽

Building Project

Variation order refers to any changes from the scope, plan, specification or contract document in the construction project. This changes of work is a common problem in construction projects in Malaysia. It is inevitable in any construction project and this problem can become more serious when variation order causes work progress to be impaired as a results it increased the construction time and cost that affects the construction industry in Malaysia. This paper critically review the causes of variation order in the construction industry on the double-storey terrace housing project in Malaysia. The discussions began with the construction industry in Malaysia and then related parties involved in the construction industry. The extensive local and abroad literature review on the definitions of variation order and analysis of past studies conducted on variation order and the previous study of the prediction model of variation. The extensive literature on variation order in the construction of building project may help to improve the performance in term of time, cost and quality of the construction of building projects in Malaysia.

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An Analysis of Construction Failure Factors to Stakeholder Coordinating Performance in the Finishing Phase of High-Rise Building Projects

Advances in Civil Engineering ◽

10.1155/2020/6633958 ◽

2020 ◽

Vol 2020 ◽

pp. 1-14

Author(s):

Viet T. Nguyen ◽

Sy T. Do ◽

Nhat M. Vo ◽

Thu A. Nguyen ◽

Son V. H. Pham

Keyword(s):

Factor Analysis ◽

Construction Projects ◽

Project Planning ◽

Analysis Method ◽

Building Projects ◽

High Rise ◽

High Rise Building ◽

Building Project ◽

Construction Works ◽

Failure Factors

A poorly coordinated performance among stakeholders in the finishing phase can impair the performance of a high-rise building project. Therefore, it is necessary to analyze construction failure factors (CFFs) to stakeholder coordinating performance (SCP) in the finishing phase of high-rise building projects and to uncover their underlying relationships. CFFs to SCP in construction projects, especially in the finishing phase of high-rise building projects, have not yet been discovered. The study identified 30 CFFs to the SCP and ranked them according to the perspective of the stakeholders, including owners/consultants and contractors/subcontractors. Additionally, four factors of the CFFs, namely, traditional adversarial relationship, poor project planning and organization, incompetent parties, and delays of parties toward construction works were extracted by the factor analysis method. This study fills the gap in knowledge related to the coordination performance in construction projects. The findings could help stakeholders to enhance their coordinating performance in high-rise building projects.

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Effect of Manpower and Resource Factors on Labor Productivity at House Building Projects in DHA Lahore

Management Science and Business Decisions ◽

10.52812/msbd.14 ◽

2021 ◽

Vol 1 (1) ◽

pp. 12-20

Author(s):

S. Mutahir Hussain Shah ◽

Muhammad Nawaz ◽

Aimen Batool

Keyword(s):

Literature Review ◽

Construction Industry ◽

Labor Productivity ◽

Construction Projects ◽

Project Manager ◽

Quality And Safety ◽

Building Projects ◽

Low Performance ◽

Building Project ◽

House Building

Construction industry suffers numerous issues and complicated factors like price, period, quality and safety. It is said that Construction projects are versatile because they associate with contractors, architects, advisers, designers, the project owners, etc. Keeping in view of above factors, objective of this research is to highlight those factors which have impact on labor productivity in house building project. Through literature review as well as discussion with different consultants, several factors of productivity were identified. Out of which 20 factors were selected, which were later categorized into two sets, for analyzing in the current study. A comprehensive questionnaire was prepared and sent to project manager, engineers, designers, and builders. It was found, that total expense of construction comes to much higher as it was originally calculated. It is suggested that human resource should be developed through an effective and well planned training program, so that construction project do not suffer due to low performance. The mentioned factors are supposed to help in completed the construction projects effectively.

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Optimization of management decisions in management of investment-building projects

Transport development ◽

10.33082/td.2018.1-2.03 ◽

2018 ◽

pp. 26-40

Author(s):

Georgiy Balduk

Keyword(s):

Construction Projects ◽

Optimal Investment ◽

Project Manager ◽

Point Of View ◽

End User ◽

Management Decisions ◽

Operational Decisions ◽

Building Projects ◽

Managerial Decisions ◽

Complex Criterion

The purpose of the work is to improve the success of investment and construction projects by increasing the success of management decisions based on their optimization. The paper analyzes the concept of optimization of the solution and the general principles of this process. The analysis results: the certain incorrectness of using separate criteria of optimization of the decision for strategic and operational decisions in the management of investment-construction projects is substantiated; it is suggested to use a complex criterion for optimizing managerial decisions taking into account the constraints and the potential of their success. In the article methods of making optimal strategic and operational decisions for management of investment-construction projects, with optimiza-tion of decisions on the basis of a complex criterion, are developed. The proposed approach allows the project manager to adopt optimized, potentially successful management solutions. Also, the method of selecting the optimal investment and construction projects from the point of view of the end user.

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DEVELOPING A CONSTRUCTION-DURATION MODEL BASED ON A HISTORICAL DATASET FOR BUILDING PROJECT / STATYBŲ PROJEKTO REALIZAVIMO TRUKMĖS MODELIO, PAGRĮSTO ISTORINIAIS DUOMENIMIS, KŪRIMAS

Journal of Civil Engineering and Management ◽

10.3846/13923730.2011.625641 ◽

2011 ◽

Vol 17 (4) ◽

pp. 529-539 ◽

Cited By ~ 14

Author(s):

Ming-Chiao Lin ◽

Hui Ping Tserng ◽

Shih-Ping Ho ◽

Der-Liang Young

Keyword(s):

Regression Model ◽

Construction Projects ◽

Predictive Accuracy ◽

Predictive Ability ◽

Duration Model ◽

Prediction Errors ◽

Building Projects ◽

Model Based ◽

Contract Duration ◽

Building Project

The delay of vast building projects is still a common problem. This situation is extraordinarily severe to steel reinforced concrete (SRC) building projects that keep going to promote a new structure system in Taiwan's construction industry. The aim of this study is to develop a feasible contract duration model based upon few SRC building cases. A logical approach is employed to select and assure the “good” regression model identified when project characteristics were known and external uncertainties were reasonably estimated. Different necessary diagnostics had been adopted to examine the aptness of the model before inference. The cross-validation is used to validate the appropriateness of the variables selected and magnitudes of the regression coefficients. The mean of the square prediction errors (MSPR) is selected to measure the predictive ability of the model proposed, and the result shows that the predictive ability of the selected regression model could be adequate. Finally, several cases are taken to test the predictive accuracy of the model proposed, and the result shows that the actually necessary construction duration is considerably closed to the duration predicted by the mode. It is concluded that the predictive duration model proposed could be applicable to the SRC construction projects with a reasonable reliability. Santrauka Vėlavimas realizuojant stambius statybų projektus tebėra dažna problema. Ši situacija ypač rimta dirbant su gelžbetoninių statybų projektais, kuriais populiarinama naujų konstrukcijų sistema Taivanio statybų sektoriuje. Šiuo tyrimu siekiama sukurti tinkamą sutarties trukmės modelį, pagrįstą keliais gelžbetoninės statybos atvejais. Atrenkant ir užtikrinant, kad būtų sudarytas ,,geras“ regresijos modelis, kai projekto savybės žinomos, o išoriniai neapibrėžtumai pakankamai įvertinti, taikytas loginis metodas. Prieš darant išvadas modelio tinkamumas buvo išnagrinėtas naudojant skirtingas būtinos diagnostikos priemones. Naudojant kryžminį patikrinimą pagrindžiamas pasirinktų kintamujų tinkamumas ir regresijos koeficientų vertės. Siekiant įvertinti siūlomo modelio tinkamumą prognozuoti, apskaičiuotos vidutinės kvadratinės prognozavimo paklaidos (angl. Mean of the Square Prediction Errors, MSPR). Rezultatas rodo, kad pasirinktasis regresijos modelis prognozuoja gana gerai. Pagaliau pasirinkus kelis atvejus išbandomas siūlomo modelio prognozių tikslumas. Rezultatas rodo, kad faktinė bū tina statybų trukmė gana artima modelio prognozuojamai trukmei. Daroma išvada, kad siūlomą trukmės prognozių modelį galima taikyti gelžbetoninės statybos projektuose, o jo rezultatai bus gana patikimi.

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Usage of Interface Management System in Adaptive Reuse of Buildings

Buildings ◽

10.3390/buildings9050105 ◽

2019 ◽

Vol 9 (5) ◽

pp. 105 ◽

Cited By ~ 5

Author(s):

Ekin Eray ◽

Benjamin Sanchez ◽

Carl Haas

Keyword(s):

Construction Projects ◽

Adaptive Reuse ◽

Project Delivery ◽

Interface Management ◽

Building Projects ◽

Planning Methods ◽

New Construction ◽

Definition Of ◽

Building Project

Adaptive reuse of buildings is considered a superior alternative for new construction in terms of sustainability and a disruptive practice in the current capital project delivery model for the renewal of today’s built environment. In comparison to green-field construction projects, adaptive reuse projects require distinct stages, definition of interfaces, decision gates, and planning methods in order to secure the success of the building project. Unfortunately, little research has been done regarding establishing feasible systems for the planning, assessment, and management of adaptive reuse projects, leading to underperforming building projects outcomes. Interface management (IM) can improve renovation projects outcomes by defining appropriate ways to identify, record, monitor, and track project interfaces. IM has the potential of bringing cost and time benefits during adaptive reuse projects execution. The aim of this study is to develop a reference framework for implementing IM for adaptive reuse projects. First, the inefficiencies of redevelopment projects are explained inside of a circular economy (CE) context. Second, an ontology of IM for adaptive reuse projects is defined based on the current barriers to adaptive reuse and the most common interface problems in construction projects. Third, the defined ontology is expanded through a case study by showing examples of adaptive reuse barriers on a case project, and how IM could have been part of the solution for these problems. Finally, this study concludes with the suggestions on interface management systems (IMS) implementation for future adaptive reuse projects.

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Best Value Procurement (BVP) in Norwegian Construction Projects

Periodica Polytechnica Architecture ◽

10.3311/ppar.12862 ◽

2019 ◽

Vol 50 (1) ◽

pp. 12-20

Author(s):

Glumur Orri Högnason ◽

Paulos Wondimu ◽

Ola Lædre

Keyword(s):

Construction Projects ◽

Selection Method ◽

Medium Size ◽

Literature Study ◽

Contractor Selection ◽

Best Value ◽

Infrastructure Project ◽

And Control ◽

Building Project ◽

Creative Construction

The traditional contractor selection method, based on lowest price, has resulted in conflict, low quality products and a waste of resources. The need for an alternative supplier selection method has resulted in Best Value Procurement (BVP). BVP seeks to increase project value by utilizing the expertise of the contractor, while reducing the client’s management, direction and control. Currently, pilot projects in the Norwegian construction industry are testing the method. This paper addresses 1) how BVP is implemented in practice, 2) what the experiences with BVP are, and 3) how BVP should be performed in future projects. The research was carried out through a literature study and two Norwegian case studies. A building project and a medium-size infrastructure project in the Norwegian public sector were investigated through nine semi-structured, in-depth interviews and document studies. The findings show that the practical use of BVP is in accordance with the theoretical approach. Furthermore, the experiences with BVP are mainly positive. However, some challenges have been identified, such as the clients’ and contractors’ lack of knowledge and experience with the BVP method. This may reduce the potential project value. The conclusion is that BVP is an effective and promising method for contractor selection and project management. However, for the success of future projects using the method, clients and contractors may benefit from more knowledge and experience with BVP. This can be done by training and by being persistent in using BVP in future projects. This paper is a revised version of a paper that has been published in the proceedings of the Creative Construction Conference 2018.

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The Research of Risk Management in Project Contracts

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.357-360.2546 ◽

2013 ◽

Vol 357-360 ◽

pp. 2546-2549 ◽

Cited By ~ 1

Author(s):

Rong Jie Zhu ◽

Ying Peng ◽

Yang Sun

Keyword(s):

Risk Management ◽

Construction Projects ◽

Management Process ◽

Building Projects ◽

Sources Of Risks ◽

And Control

The risk of project contracts is the uncertainty that exists alongside a contract. It is the pressing issue for contractors to prevent and control risks as the peculiarity of building projects brings about series of uncertain risks. By going through the management process of contracts for construction projects, this thesis analyzes the sources of risks and gives ideas and suggestions for designing effective measures to avoid project contracts risks.

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Explicating Mechanical and Electrical Knowledge for Design Phase of Green Building Projects

Journal of Information & Knowledge Management ◽

10.1142/s0219649216500027 ◽

2016 ◽

Vol 15 (01) ◽

pp. 1650002

Author(s):

Zohreh Pourzolfaghar ◽

Rahinah Ibrahim ◽

Nor Mariah Adam

Keyword(s):

Conceptual Design ◽

Construction Projects ◽

Green Building ◽

Design Phase ◽

Building Projects ◽

Flow Problems ◽

Conceptual Design Phase ◽

Construction Knowledge ◽

Building Project

Construction projects usually encompass numerous disciplines, requiring the integration of knowledge from civil, mechanical, electrical and other engineering domains. Some researchers contend that the integration of construction knowledge and experience at the early design phase would improve the overall project performance. Domination of tacit knowledge during design phase of building projects is the major source of knowledge flow problems between involved professionals. Therefore, this study intends to explicate the required mechanical and electrical knowledge which has to be considered during the conceptual design phase of a green building project. To fulfil this goal, a case study has been conducted to specify the entity of the required mechanical and electrical knowledge. The primary method for the data collection here is observation. Furthermore, this study employs the triangulation method in order to validate the collected data. The results contain the required mechanical and electrical knowledge which has to be considered during the conceptual design phase of a green building project.

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Factors Affecting the Performance in the Implementation of Government Building Construction Projects: A Case Study in Bole Sub- City of Addis Ababa

10.31224/osf.io/bd3es ◽

2020 ◽

Author(s):

Serkalem Molla ◽

Emer Quezon ◽

Eyob Mekonnen ◽

Woyesa Ararsa ◽

Dumesa Gudissa ◽

...

Keyword(s):

Construction Projects ◽

Raw Materials ◽

Addis Ababa ◽

Commodity Prices ◽

Building Projects ◽

Public Building ◽

Factors Affecting ◽

Importance Index ◽

The Government ◽

Building Project

Building project implementation has so many issues and complex performance, such as time, cost, quality, and safety. This study identified and assessed the essential factors influencing the implementation of public building projects, particularly in the Bole Sub-city of Addis Ababa. There were 46 factors identified, validated, and divided into 9 categories. Questionnaires are distributed to 120 respondents, of which 8 for owners, 25 for consultants, 86 for contractors, and one head of the office. The key factors decided upon were: liquidity of the organization, improved availability of commodity prices for people with high experience and expertise, and the quality of equipment and raw materials in the project. The agreement between the parties on the ranking of factors was calculated based on their Relative Importance Index. Besides, the value of the Cronbach’s Alpha for variables calculated above 0.7, which means the data and scale are reliable and accepted for further analysis to correlate the different groups of factors. Results showed that cost, time, quality, productivity, and customer satisfaction are the top five essential factors affecting the performance of the government public building in the study area.

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