Sustainable practices at construction sites should be considered from the start of the project, meaning during the design phase. A model for the implementation of sustainability at a site is an important management tool, and its adoption can indicate good practices and propose an assessment of local conditions. Thus, the main contribution of this article is to propose a practical model to evaluate the level of implementation of sustainable practices at construction sites. The model was based on sustainability certifications and validated at six construction sites in Brazil. The results indicate that construction companies that possess environmental certifications have better levels of implementation of good practices at their work sites. However, it was noted that it is not necessary for a company to obtain an environmental certification; rather, it is necessary for sustainability strategies to become corporate culture.

Goal: This research aim is to answer the question: which Maturity Model (MM) is suitable to evaluate LC implantation in Brazilian Small-Medium Sized Enterprises (SME) of construction. Design / Methodology / Approach: A literature review was carried out to identify MM related to LC. Then, a case study was conducted applying selected MM in one SME located in São Paulo country town state. The data collection was carried out from April to August of 2018 with professionals of the construction company. A content analysis was used to lead the suited MM through the case study outcomes. Results: The case study results were analyzed and guide to the suitable MM for this scenario. Improvements to the MM and complementary tools for companies starting on LC implementation are discussed. It was verified that the elected MM has many advantages and can be used in different Brazilian SME of construction. Limitations of the investigation: The MM assessment cover just one project and the content analysis classification criteria embrace this project issues and the experience provide by this application. Practical implications: This paper point out the suitable MM to be used by construction practitioners in Brazilian construction projects that are starting lean implementation an SME seeking to meet the gap of elect one model to fill this goal and spread lean philosophy in this scenario. Originality / Value: This paper contributes to the LC body of knowledge discussing the individuality of Brazilian SME construction projects and the challenge of choosing the MM that fit these companies, leading to method selection criteria that support this issue.

Resumorelevante o papel da Tecnologia da Informação e Comunicação (TIC) aplicada à cadeia produtiva da construção, em particular na gestão de equipamentos de segurança, cujas práticas convencionais de controle têm mostrado eficiência limitada. Sendo assim, este trabalho apresenta o estudo do desenvolvimento de um sistema de monitoramento e controle remoto de equipamentos de segurança utilizando a tecnologia Radio Frequency Identification (RFID) administrado pelo software, também desenvolvido nesta pesquisa, intitulado Controle de Obras por RFID. A rotina de ensaios combinou testes de laboratório para hospedagem e validação do sistema e experimentos em um canteiro de obras para a verificação do sistema em um ambiente real de construção. O modelo mostrou-se eficiente na identificação e localização dos equipamentos por meio da indicação de sua posição em imagens em planta. O modelo forneceu também relatórios gráficos e textuais que exibem as características de cada equipamento e apresentam os seguintes dados: nome, obra, local, marca, material, estado de conservação, previsão de revisão e responsável. A introdução da TIC no desenvolvimento de ferramentas, como o sistema proposto por este estudo, contribui para o avanço da gestão de equipamentos de segurança no canteiro de obras, podendo ser extrapolado para a gestão de outros componentes. Palavras

The purpose of this paper is comparing five Maturity Models (MM) developed to measure the company's adherence to Lean Construction (LC) principles. Methods were applied to the same project and results show that project classification was equivalent in the five systems for LC principles adherence. This MM have differences between origins, scope, application and results presentation, showing the diversity existent in LC philosophy. For this case study, all five methods showed adherence to lean principles and the results are graphically presented to easily compare the obtained results from the application of them.

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