Ju-Hyung Kim

Design errors are one of the major risk factors causing rework and delay. Therefore, accurate cost analysis of potential economic losses attributable to design errors is crucial from a practical point of view. This paper proposes a basis for establishing building information modeling (BIM) investment strategies by quantifying the various costs associated with design errors for error prevention. The design errors were classified into three basic types: simple design (Type 1); rework-related (Type

The competitiveness of construction firms may be achieved by effective decision-making and high productivity. Therefore, it is necessary to analyze the efficiency and productivity of construction firms. This study aims to compare the efficiency and productivity of Chinese, Japanese and Korea construction firms between 2005 and 2011 using Data Envelopment Analysis (DEA) and DEA-based Malmquist methods. The analysis process is as follows: 1) Decision Making Units, input and output variables are se

Green retrofit is regarded as an effective environmental measure to reduce greenhouse gas emissions in high energy-consuming commercial buildings. However, the current retrofitting rate of complex structures is lower than the expected rate. This study proposed a method of stimulating the interaction of multiple agents (government, developers, and occupants) involved in the green renovation of China’s commercial buildings. To this end, the evolutionary game theory was applied to determine the mul

COVID-19 has forced people to spend more time indoors due to lockdown and social distancing, and clients demand personalized indoor spaces designed to increase individual satisfaction indoors. Consequently, various fourth industrial revolution technologies have been applied to support construction spaces to satisfy those clients lacking architectural knowledge and experience by reflecting individual tendencies and perceptions to build personalized indoor spaces. Therefore, it is crucial to under

This paper presents the methods used and a case study of a project management system (PMS) to manage daily progress in the construction of multiple apartment buildings in South Korea. A dilemma encountered in previous research in the field of progress management is that efforts to enhance data accuracy cause the data handling workload to soar. A main feature of the method presented by the writers for calculating the budgeted cost work schedule is to allocate the project budget into control attri

This paper is about intelligent Program Management Information System (iPMIS) to support decision-making and management of urban renewal mega projects over their life cycle in Korea. Program management focuses on soft issues i.e. benefits, stakeholders, and governance. A challenge is the diversity of urban renewal projects in terms of process and organization structure. The authors clarify the general requirements of systems to support program management while coping with diversity as follows: o

The performance of construction companies is closely related to the macroeconomy and is, therefore, subject to macroeconomic fluctuations. That, in some instances, can lead to their insolvency. An analysis of how macroeconomic changes affect construction companies is thus necessary. Hence, we analyzed impacts of macroeconomic fluctuations on insolvency in construction companies by establishing a vector error correction model (VECM) using macroeconomic variables. This model generates the expected

As the number of overseas projects increase, capabilities of managers should be comprehended by handling risks. Therefore, comparison of project managers’ risk perception and risk handling costs from actual cases is necessary to set the management direction. Thus, eleven risk factors that occur frequently in overseas construction were classified into three categories . Perception of 54 international construction managers were collected by survey and ranked by using relative importance index. Con

This study examines the case of a shopping mall in Seoul, South Korea, based on its offline retail sales data during the period of the enforcement of the COVID-19 pandemic social distancing policy. South Korea implemented strict social distancing, especially in retail categories where people eat out, due to the danger of spreading infectious disease. A total of 55 retail shops’ sales data were analyzed and classified into five categories: fashion, food and beverage (f&b), entertainment, cosm

The external wall insulation method was introduced to enhance the energy efficiency of existing buildings. It does not cause a decrease of inner space and costs less in comparison to methods that insert insulation panels inside walls. However, it has been reported that external wall insulation boards are disconnecting from walls due to malfunctions of the adhesive. This causes not only repair costs, but also serious injury to pedestrians. Separation problems occur when the bonded positions are i

In sustainable international development projects, a negotiation guideline for donor and recipient countries is essential to reduce conflicts among various stakeholders in project-based organizations (PBOs) consisting of leadership, senior executioner board, change management board, and executioner. This paper presents a guide focusing on the roles and responsibilities (R&R) of stakeholders according to the hierarchy in PBOs. R&R are classified to keep sustainability at multiple levels while bal

Given the COVID-19 pandemic and the resulting social distancing measures with inevitable telecommuting, capturing user emotions is essential as it affects both satisfaction and task performance. Therefore, the purpose of this study was to analyze emotions and task performance in terms of dislike and personalized decision-making in indoor spaces. To facilitate experiments with participants, a mixed-reality environment was utilized with the Pleasure, Arousal, Dominance (PAD) test and cognitive tes