Lean construction (LC) is becoming prevalent, and assessment of the level of LC implementation is vital for organizations to realize their full potential. In meeting that need, lean construction maturity models (LCMMs) play a key role. However, there is less evidence of critical re-views in spite of the significant number of LCMMs available. Therefore, this study was initiated with the aim of systematically reviewing the literature on existing lean-construction-related maturity models (MMs) through a critical review. The study adopted the PRISMA method to review 24 such models using manual content analysis. The study revealed the most common attributes among the models, along with their key strengths and weaknesses. The findings of this study can be directly used to develop more robust LCMMs and enhance the knowledge base on theoretical underpinnings. From an industry perspective, the findings assist organizations to more effectively assess LC maturity. The study invites further research on the area of LC maturity and advocates for developing new MMs addressing these areas identified for improvement.

The social and economic burdens of road accidents have become a governing issue for the authorities and policymakers of developing countries. Moreover, the lack of research on road safety management has hindered the enhancement of road safety in these countries. Thus, this study aimed to improve the road safety standards in Sri Lanka. The objectives of the study are to investigate the causes of road accidents in Sri Lanka, to examine the problems associated with the road conditions existing in Sri Lanka and to propose strategies to improve road safety in Sri Lanka. A qualitative approach was adopted in the study and the empirical data collection commenced with a comprehensive document review to determine the level of road safety management in the country. Thereafter, case study strategy was adopted and three roads in Sri Lanka were selected through purposive sampling as the cases. Non-participatory observations and 20 semi-structured interviews were conducted to collect the required data from the three roads. The collected data were analyzed using code-based manual content analysis. The findings revealed that the roads in Sri Lanka have deficiencies. Eighteen causes of road traffic accidents and nineteen strategies that can enhance road safety in Sri Lanka were identified through the study. Related previous studies have revealed only the statistics, trends, and economic impacts of road accidents in developing countries. Thus, the literature on the management of road safety standards in developing countries is scarce and this study fulfils the research gap. The study adds to the body of knowledge by exploring in detail how the road safety standards in developing countries could be enhanced using Sri Lanka as an example.