Leaders and coworkers have a critical influence on construction workers’ safety behavior, but limited attention has been paid to how they work together. This study took an integrative perspective, exploring the combined effects of leaders (safety leadership) and coworkers [coworkers’ safety knowledge and behavior (CSK/B)] on construction workers’ safety behavior (compliance and participation) through their risk perception. Data were collected using a questionnaire survey administered to 348 frontline construction workers in China, and hierarchical linear regression was used to test the hypotheses. Results show that both safety leadership and CSK/B positively affected workers’ safety compliance and participation via risk perception. In addition, compared with safety leadership, CSK/B had a stronger impact on workers’ risk perception, as well as a stronger impact on safety compliance and safety participation via risk perception. This study deepens understanding of the forming mechanism of construction workers’ safety behavior by examining the mediating role of risk perception and comparing the influence of safety leadership and CSK/B. Practically, this knowledge will enable construction managers to develop appropriate strategies for fostering construction workers’ safety behavior.

Sustainable development has been commonly identified as a vital target in the construction industry. Studies have examined different management strategies and procedures to promote resource utilization efficiency, while the human factors in sustainable construction have received far less attention. This paper investigates the influence of Project Citizenship Behavior (PCB) on project performance in the sustainable construction context. After introducing the concept of “relationship sustainability,” a moderating model is established. Data are collected from 152 experienced construction project managers in China. The results show positive relationships between most dimensions of Project Citizenship Behavior and construction sustainability performance, in spite of the negative effect of taking charge on relationship sustainability. Moreover, the degree of complexity of projects acts as a moderator in the relationship between Project Citizenship Behavior and construction sustainability performance. This paper endeavors to enrich the knowledge of sustainable construction by regarding human behavioral factors as important resources and explaining their effect on project sustainability, thus shedding light on the theory of sustainable construction by extending it to the micro-level analysis, as well as offering guidelines about how to raise the sustainability level of construction projects.

Purpose: Early termination of public–private partnerships (PPPs) in China is caused by various risk factors, resulting in significant losses. This study aimed to clarify the key factors and identify the causal relationships among these factors.Design/methodology/approach: Social network analysis (SNA) was used to analyze 37 risk factors that were summarized from 97 early terminated PPP cases and to identify the relationships among these key risk factors. Interpretive structural modeling (ISM) was conducted to explore the causal relationships. Data were collected from case documents, questionnaires and interviews.Findings: A total of 17 key risk factors were identified and distributed in a hierarchical structure with six tiers. Among these key risk factors, the root causes affecting the early termination of PPP projects were government oversight in decision-making, local government transition, policy and law changes and force majeure. The direct cause was insufficient returns. Furthermore, local government and private sector defaults were essential mediating factors. Local government transition and the low willingness of the private sector were highlighted as potential key risks.Research limitations/implications: The cases and experts were all from China, and outcomes in other countries or cultures may differ from those of this study. Therefore, further studies are required.Practical implications: This research provides knowledge regarding the key risk factors leading to the early termination of PPP projects and guidance on avoiding these factors and blocking the factors' transmission in the project lifecycle.Originality/value: This study contributes to the knowledge of risk management by emphasizing the importance of local government transition, the low willingness of the private sector and project cooperation and operation, whose significance is ignored in the existing literature. The proposed ISM clarifies the role of risk factors in causing early termination and explains their transmission patterns.