China’s construction industry developed rapidly and safety production has become a vital issue. Improving the safety behavior of construction workers is an important measure to effectively decrease construction safety accidents. At present, a New Generation of Construction Workers (NGCWs) born after 1980 has gradually become the main force of construction companies in China and the special group characteristics coming from the intergenerational difference may make them behave differently in safety-related activities, therefore, it is very important to study how to promote their safety behavior. This paper aimed to explore the influencing mechanism of job satisfaction on the safety behavior of NGCWs and examine the mediating role of safety knowledge sharing and work engagement. Confirmatory factor analysis and structural equation modeling analysis were applied to test the theoretical model. Empirical research results indicated that job satisfaction can effectively promote safety behavior through safety knowledge sharing and work engagement. Safety knowledge sharing plays a complete mediating role between job satisfaction and safety compliance behavior, as well as between job satisfaction and safety participation behavior. Moreover, work engagement plays a complete mediating role between job satisfaction and safety participation behavior, which can provide valuable management references for China’s construction companies to strengthen their safety behavior.

Reclaimed asphalt pavement (RAP) has received wide application in asphalt pavement construction and maintenance and it has shown cost-effectiveness over virgin hot mix asphalt (HMA). HMA with a high content of reclaimed asphalt (RA) (e.g., 40%) is sometimes used in practice, however, it may have significant adverse effects on the life cycle performance and related costs. In particular, challenges may arise as the life cycle performance of RAP is also affected by local climatic conditions. Thus, it is important to investigate whether it is still economic to use RAP under future local climate, with consideration of life cycle performance. A case study was conducted for various road structures on Interstate 95 (I-95) in New Hampshire (NH), USA for the investigation. The case study utilized dynamic modulus testing results for local virgin HMA and HMA with 40% RA (as major material alternatives) to predict life cycle performance of the selected pavement structures, considering downscaled future climates. Then, a life cycle cost analysis (LCCA) was considered to estimate and compare the life cycle cash flow of the investigated road structures. Responsive maintenance (overlay) and effectiveness were also considered in this study. It was found that using 40% RA in HMA can reduce agency costs by up to approximately 18% under the 2020–2040 predicted climate and NH should consider this practice under predicted future climate to reduce agency costs.

The rapid construction of emergency hospitals in areas with a severe COVID-19 outbreak was one of the effective ways to contain and fight the pandemic. However, such rapid construction megaprojects need more than a formal management system to drive the organizational citizenship behavior (OCB) of participants in order to compensate for the lack of formal rules and regulations. Two emergency hospitals especially built for COVID-19 are taken as case studies in this paper to establish a mechanism model and examine the impact of the perceived strength of the COVID-19 event on the emergency megaproject citizenship behavior (EMCB) based on affective events theory (AET). Data from 340 project participants in the two hospitals were collected and tested using structural equation modeling. The results demonstrate that first, the positive affect induced by the COVID-19 event is the direct antecedent that promotes EMCB. Participants’ cognition of event criticality and event novelty was seen to have a positive driving effect on the positive affect. However, their cognition of event urgency and event disruption only triggers negative affect. Second, the positive affect induced by the COVID-19 event was seen to have a strong positive and direct promoting effect on the six dimensions of EMCB. Contrary to expectations, the negative affect induced by the COVID-19 event does not significantly influence the six dimensions of EMCB. This study provides empirical suggestions for project managers on how to motivate EMCB through public emergency management to help achieve project objectives.

In the context of the increasingly severe energy crisis and global warming, green buildings and their energy-saving issues are being paid more attention in the world. Since envelope optimization can significantly reduce the energy consumption of green buildings, value engineering (VE) technology and building information modeling (BIM) technology are used to optimize the envelope of green buildings, which takes into account both energy saving and life cycle cost. The theoretical framework of optimization for green building envelope based on BIM-VE is proposed, including a BIM model for architecture, a life cycle cost analysis model, energy-saving analysis model, and a value analysis model. In the life-cycle cost model, a mathematical formula for the life-cycle cost is established, and BIM technology is used to generate a bill of quantity. In the energy-saving analysis model, a mathematical formula for energy saving is established, and BIM technology is used for the building energy simulation. In the scheme decision-making sub-model, VE technology integrating life cycle cost with energy saving is used to assess the envelope schemes and select the optimal one. A prefabricated project case is used to simulate and test the established methodology. The important results show that the 16 envelope schemes make the 16 corresponding designed buildings meet the green building evaluation standards, and the optimal envelope scheme is the “energy-saving and anti-theft door + exterior window 2+ floor 1+ exterior wall 1 + inner shear wall + inner partition wall 2 + planted roof” with the value 10.80 × 10⁻² MW·h/ten thousand yuan. A significant finding is that the value generally rises with the increase of energy-saving rate while the life cycle cost is irregular with the increase of energy-saving rate. Compared with previous efforts in the literature, this study introduces VE technology into architectural design to further expand the current boundary of building energy-saving theory. The findings and suggestions will provide a valuable reference and guidance for the architectural design industry to optimize the envelope of green buildings from the perspective of both energy saving and life cycle cost.

As prefabricated buildings play a significant role in the global fight against the new coronavirus “COVID‐19,” they attract more global attention than other types of buildings. Lean construction helps to improve the benefits of enterprises and the working environment of workers. However, prefabricated buildings are encountering various challenges in implementing on‐site lean construction. According to a cause‐and‐effect relationship, it will be more meaningful to explore the critical causes hindering on‐site lean construction, namely, the critical barriers. Hence, this paper establishes a research methodology framework based on multimethod collaboration, including the exploratory factor analysis model regarding critical barriers, the exploratory factor evaluation model regarding organizational capabilities, and the important findings and suggestions. Thirty‐one critical barriers of on‐site lean construction for prefabricated buildings are identified via literature analysis, field survey, and semistructured interview. After pre‐exploratory factor analysis, thirty critical barriers are finally retained and prioritized, and six common components are extracted and nominated. A large‐scale project using the Engineering, Procurement, and Construction (EPC) mode is selected as a case study to evaluate its construction organizational capability to deal with the six common components. The important findings indicate that the inadequate professional management capability of managers is the most critical barrier, and the construction organization from the project case is fully capable of dealing with the common components during on‐site lean construction. Six corresponding substantive suggestions are also proposed according to domain experts, and the most prioritized one of them is that an internal training or external recruitment is suggested to solve the inadequate professional management capability of managers. The internal training should take the form of seminars and training courses that invite senior prefabricated project management experts to participate. The external recruitment needs to focus on the management experience, lean skills, and leadership of managers in prefabricated projects. The established methodology framework proposes a new idea for the barrier analysis and corresponding organizational capability evaluation of on‐site lean construction from the perspective of the specific prefabricated construction industry rather than the entire construction industry. Due to the special construction mode of prefabricated buildings, it further expands the current boundary of lean construction methodology. The findings and suggestions will provide a valuable reference and guidance for the prefabricated construction industry to solve the barriers regarding on‐site lean construction.

As a sustainable and cleaner type of facility, prefabricated buildings face more design barriers than traditional non-prefabricated buildings. Identifying and managing these barriers is key to improving the success rate of prefabricated building design. However, direct studies on these design barriers are extremely rare. The present study solved this problem by combining multiple methods, including grounded theory (GT), structured self-intersection matrix (SSIM), analytic network process (ANP), and the linear weighted sum method (LWSM). GT was adopted to identify the barriers to prefabricated building design and then SSIM was used to analyze the interactions among them. The eight design barriers were finally identified and classified into three clusters: technical barriers, economic barriers, and management barriers. A further analysis found that there is dependence and feedback among these clusters. The technical barrier cluster and management barrier cluster experience self-feedback. A network model based on ANP was next established to calculate the weights of the barrier elements and then this model was combined with LWSM to evaluate the overall design barrier strength of a project case. The results showed that architectural individualization has the greatest impact on prefabricated building design, followed by the collaborative issues among multiple units and professional designer issues. The overall design barrier strength of the project case was larger. Therefore, the first suggestion provided to the facility management sector is to establish a library for standard house types to achieve architectural design through multihouse combinations.