scholarly journals Construction delays: a case study in the Brazilian Amazon

2017 ◽  
Vol 17 (3) ◽  
pp. 167-181 ◽  
Author(s):  
Luiz Mauricio Furtado Maués ◽  
Wylliam Bessa Santana ◽  
Paulo Cerqueira dos Santos ◽  
Renato Martins das Neves ◽  
André Augusto Azevedo Montenegro Duarte
Keyword(s):  
Factor Analysis ◽  
Construction Projects ◽  
City Planning ◽  
Brazilian Amazon ◽  
Construction Time ◽  
Construction Companies ◽  
Industrial Sectors ◽  
Planning Department ◽  
The Government

Abstract he construction industry is one of the industrial sectors with the lowest rates of fulfilment of contract deadlines, especially in developing countries. This fact has been the focus of considerable discussions seeking to identify the causes of the delays. The main purpose of this paper is to use factor analysis to identify the factors that are correlated with delay, contemplating exclusively residential real estate projects and using a city in the Brazilian Amazon as a case study. Based on the database from the government agency that authorises constructions in the city of Belém (City Planning Department - Secretaria Municipal de Urbanismo, SEURB) and data from construction companies, the study investigated 274 construction projects from the past 11 years. Factor analysis and work with the variables that can be identified and measured in the initial phase of the project, i.e., during the feasibility study, demonstrate that the physical characteristics of the apartments and the construction project are the primary causes for variations in construction delays; these causes have not yet been reported in the literature. We hope that the results of this study will contribute to more consistent forecasting of construction time, minimising the risk of delays.

scholarly journals Application of BIM and 3D Laser Scanning for Quantity Management in Construction Projects

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Thu Anh Nguyen ◽  
Phong Thanh Nguyen ◽  
Sy Tien Do
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Laser Scanning ◽  
Essential Role ◽  
Industrial Revolution ◽  
Management Process ◽  
3D Laser Scanning ◽  
Economic Sectors ◽  
Construction Companies

The construction industry has played an essential role in the process of modernization and industrialization and it has also been a major factor in determining the development of the infrastructure for other economic sectors. Construction companies consider the measurement of work progress, which often wastes time and has a low resolution, to be one of the most challenging problems faced by project management. Therefore, this research aimed to propose practical solutions by applying recent technological achievements of the 4.0 industrial revolution to improve the efficiency of the quantity management process. By utilizing the advantages and features of a BIM model and 3D laser scanning, this paper proposes that adopting a BIM model and 3D laser scanning has the potential to improve the accuracy and efficiency of the quantity management process. The case study demonstrated some typical tasks to evaluate accuracy and efficiency as well as to showcase the research proposal.

scholarly journals Integration of digital technologies in the field of construction in the Russian Federation

2019 ◽  
Vol 11 (3) ◽  
pp. 38-47 ◽  
Author(s):  
Elena Aleksandrova ◽  
Victoria Vinogradova ◽  
Galina Tokunova
Keyword(s):  
Russian Federation ◽  
Construction Projects ◽  
High Performance ◽  
Digital Technologies ◽  
Unmanned Vehicles ◽  
Business Relationships ◽  
Construction Companies ◽  
Digital Ecosystem ◽  
The Russian Federation ◽  
The Government

Abstract The article presents the study that mainly focused on the changes made as a result of collaborative innovations in business relationships developed during the period of digitalisation in the construction field of the Russian Federation. It is a conceptual piece of work based on the systematic approach to the analysis, literature review and comparative analysis. The digitalisation of investment and construction projects is technologically based on the integration of solutions, such as the building information model (BIM), high-performance IT-systems, cloud platforms and the Internet-of-Things, resulting in unified and constant connectivity, specialised mobile applications, robotic equipment, unmanned vehicles, additive technologies, AR/VR services for the analysis of Big-Data, and blockchain technologies. The integration of digital technologies is a radical innovation, which highlights collaborative innovations in business relationships and makes it possible to form a united digital ecosystem that allows firms to manage, control and regulate the full lifecycle of a construction project, and then, the property in real-time. The contribution of this work to the construction field is the offered model for the creation of a digital ecosystem and the described role of the government in the model. Also, this work can be used for the integration of BIM technologies in construction companies.

Roles of Contractors in Implementing Quality Assessment System in Construction (QLASSIC) in Construction Projects

2021 ◽  
Vol 15 (S1) ◽  
pp. 53-69
Author(s):  
Mohd Shazreen Seman ◽  
Mohd Reza Esa ◽  
Mohd Reeza Yusof
Keyword(s):  
Quality Assessment ◽  
Construction Industry ◽  
Construction Projects ◽  
Poor Quality ◽  
Technical Committee ◽  
Assessment System ◽  
Construction Companies ◽  
Industry Standard ◽  
The Government ◽  
Questionnaire Surveys

In recent decades, the construction industry has been widely criticized for its lack of efficiency and productivity, and it has been shown that the Malaysian construction industry records poor quality on its projects. To overcome this issue, the Technical Committee on Quality Assessment in Construction with the support of the Construction Industry Development Board (CIDB) has introduced Quality Assessment System in Construction (QLASSIC). QLASSIC is a scoring system that is used to assess and evaluate the performance of construction buildings. It is based on the Construction Industry Standard (CIS 7:2006). Unfortunately, this assessment system had poor implementation since its introduction in November 2006. QLASSIC was not extensively implemented and was taken lightly by the contractors and developers in Malaysia. There are still a huge number of contractors that are not aware of QLASSIC even the big construction companies. Thus, this research is aimed at investigating the contractor’s perspective towards the implementation of QLASSIC in the construction industry in Malaysia. Three objectives are developed to achieve the aim: (1) identification of the needs to implement QLASSIC; (2) investigation of issues and challenges to implement QLASSIC and (3) recommendation of strategies to implement QLASSIC. Structured questionnaire surveys were distributed to the G7 and G6 contractors in the Klang Valley area; which may have or may not have experience in implementing QLASSIC in their projects. The result revealed that majority of the respondents were aware and understand the needs of QLASSIC implementation, but there were still few who were unfamiliar with the QLASSIC. The current level of implementation of QLASSIC in Malaysia is still not satisfactory due to several issues and challenges acting as barriers to its implementation. Therefore, the initiatives from the government are important to promote QLASSIC implementation in the construction industry. By doing this, the contractors would be aware of the implementation of QLASSIC in the construction industry. The significance of this research is that it will assist contractors and other construction players in comprehending the implications and importance of QLASSIC implementation.

scholarly journals CASH FLOW FORECASTING WITH RISK CONSIDERATION USING BAYESIAN BELIEF NETWORKS (BBNS)

2017 ◽  
Vol 23 (8) ◽  
pp. 1045-1059 ◽  
Author(s):  
Mostafa KHANZADI ◽  
Ehsan ESHTEHARDIAN ◽  
Mahdiyar MOKHLESPOUR ESFAHANI
Keyword(s):  
Risk Factors ◽  
Cash Flow ◽  
Construction Projects ◽  
Bayesian Belief Networks ◽  
Influence Diagrams ◽  
Belief Networks ◽  
Cash Flow Management ◽  
Construction Companies ◽  
Cash Flow Forecasting

Cash-flow management is very important for contractors given that inadequate cash resources typically are the main causes for bankruptcy of construction companies. In comparison to most other industries, the construction industry is severely plagued by risk, and the success of construction projects usually depends on valuating all risks. However, conventional methods suggested by extant research on cash flow forecasting do not consider comprehensive identifica­tion of risk factors, interactions between the factors, and simultaneous occurrences of the factors. This study introduced a simple and appropriate probabilistic cash flow forecasting model using Bayesian Belief Networks (BBNs) to avoid bankruptcy of contractors by considering influence diagrams and risk factors that affect a project. Workability and reli­ability of the proposed approach was tested on an important building construction project in Iran as a real case study, and the results indicated that the model performed well.

scholarly journals Highway Expenditures and Associated Customer Satisfaction: A Case Study

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Alexander Paz ◽  
Hanns de la Fuente-Mella ◽  
Ashok Singh ◽  
Rebecca Conover ◽  
Heather Monteiro
Keyword(s):  
Customer Satisfaction ◽  
Traffic Safety ◽  
Construction Projects ◽  
Transportation System ◽  
Department Of Transportation ◽  
Southern Nevada ◽  
Highway Transportation ◽  
System Data ◽  
The Government

This study analyzes the satisfaction of the Nevadans with respect to their highway transportation system and the corresponding expenditures of Nevada Department of Transportation (NDOT). A survey questionnaire was designed to capture the opinions of the Nevadans (customers) about a number of characteristics of their transportation system. Data from the financial data warehouse of the NDOT was used to evaluate expenditures. Multinomial probit models were estimated to study the correlations between customers’ opinion and the government expenditures in transportation. The results indicate the customer satisfaction is decreasing with respect to traffic safety throughout Northwestern and Southern Nevada highways. In addition, users of Northwestern highways are more likely to be satisfied, compared to their counterparts, with increasing construction spending to reduce the time taken to complete construction projects. In Southern Nevada highways, customers’ satisfaction increases with the expenditures associated with reduction of congestion. These insights are examples of the conclusions that were obtained as a consequence of simultaneously considering customer satisfaction and the corresponding expenditures in transportation.

scholarly journals Productivity Metrics and Its Implementations in Construction Projects: A Case Study of Singapore

2021 ◽  
Vol 13 (21) ◽  
pp. 12132
Author(s):  
Ming Shan ◽  
Yu-Shan Li ◽  
Bon-Gang Hwang ◽  
Jia-En Chua
Keyword(s):  
Construction Projects ◽  
Statistical Tests ◽  
Construction Productivity ◽  
Construction Companies ◽  
Four Levels ◽  
Project Company ◽  
Different Levels ◽  
Design Score ◽  
Assessment Results

Although some studies have used or developed different types of metrics to assess construction productivity in the existing literature, few of them investigated those metrics systematically and the differences between assessment results. This study examined the various types of metrics used in the assessment of the productivity of construction projects. First, a literature review was conducted first to identify prevailing productivity metrics at four levels, namely trade, project, company, and industry. Then, the questionnaire was developed and disseminated to 53 Singapore-based construction companies for data collection. Subsequently, non-parametric statistical tests were conducted to analyze the data collected by the questionnaire. Results showed that the top five metrics in terms of usage frequency and relative importance were “constructability score”, “buildable design score”, “square meter of built-up floor area per man-day”, “square meter per dollar”, and “output per worker.” In addition, results showed that differences existed in the assessment results when productivity metrics at different levels were used to conduct the same measurement. This is the first study to explore the most widely used metrics in productivity assessments of construction projects and investigate possible differences in assessment results. This study could help the authorities to review, evaluate, and modify the productivity metrics used in practice. Thus, this study is beneficial to the practice as well.

scholarly journals Identification of risk factors leading to cost and time overrun in B-O-T projects

2021 ◽  
Vol 10 (1) ◽  
pp. 10
Author(s):  
Anue Marry Mathew ◽  
Neena S Lal
Keyword(s):  
Economic Growth ◽  
Construction Projects ◽  
Capital Expenditure ◽  
Growth Time ◽  
Cost Overrun ◽  
Managerial Skills ◽  
Term Operation ◽  
Construction Companies ◽  
Huge Impact ◽  
The Government

As infrastructural investments are vital in developing countries, it’ll not solely facilitate to foster the economic growth of a nation, however it’ll additionally act as a platform within which new kinds of partnership and collaboration may be developed. The developments of BOT have attracted participation of native and foreign non-public sector capitalist to secure funding and to deliver projects on time, within the budget and to the desired specifications. There are many complexities in projects because of the variety of factors in project’s trend and also the dependence of project primarily on national factors. Because of these complexities and their long-term operation, the projects meet with uncertainty and numerous risks. Effective risk management methods and good managerial skills are required in guaranteeing the success of the project. In recent years, due to substantial increase in the amount of construction companies along with the changes in the government administrations, the construction projects are exposed to cost and time overrun and has huge impact on the progress of works within the industry. Although, the sector is considered to be a key driver of economic growth, time and cost overruns threaten to limit the sector’s potential to help achieve the desired growth and ensure efficient capital expenditure. Keywords—BOT, cost overrun, delays, risk

scholarly journals Effect of Building Information Modeling (BIM) on reduced construction time-costs: a case study

2020 ◽  
Vol 202 ◽  
pp. 02012
Author(s):  
Moh Nur Sholeh ◽  
Shifa Fauziyah ◽  
Riqi Radian Khasani
Keyword(s):  
Construction Projects ◽  
Building Information Modeling ◽  
Information Modeling ◽  
Late Time ◽  
Construction Time ◽  
Interesting Study ◽  
Cut Time ◽  
Building Information ◽  
Technological Developments

Building Information Modeling (BIM) is an interesting study to be explored by technological developments. Especially with the Covid-19 pandemic, construction actors are encouraged to work according to the applicable protocol. BIM as integrated tool for managing projects from the beginning to the end of the work. On one side the classic problems of construction projects are high costs, late time, and quality that is not according to specifications. The purpose of this study is to analyze the effect of the use of BIM in construction projects on time and cost. A case study was carried out on a construction project that had implemented BIM. The results showed the use of BIM could cut time by 50% faster and reduce costs by 52.36%. This time and cost-effectiveness are caused by the number of workers needed and the reduced duration so that it has an impact on fundin.

Sign in / Sign up

Export Citation Format

Share Document