© 2018 Taylor & Francis Group, London.In civil construction, prevention is done by identifying and eliminating and/or controlling the accidents causes. Risk is present everywhere, so it’s essential to prevent that what is a possibility may become a reality. Accidents always bring great damage to companies: humans; social rights; materials; image and confidence on the part of the insurance companies and banking entities. The builder should have in this document an aid in controlling the risks in order to reduce the above losses. Fewer accidents contribute to increased productivity and production quality. The management of worker safety is a matter of great importance to the developer, as is cost management. The present work has as background the study of the problematic related to the area of the security in the construction work. Although in recent years investing, more and more, in this topic has been a reality it has not yet been seen significant improvements in the construction sector. At a first stage of the investigation daily visit to works of the company Augusto and Afonso da Cunha Ld was made. During these visits, the nonconformities found were collected and later analyzed in detail. From this analysis 25 variables were defined, in terms of importance in the occurrence of accident risk. In a second phase of the study, the two-variable variables were cross-checked, which allowed the analysis and interpretation of the dependence relationship between them. By comparison with the mathematical model, a matrix was elaborated where the variables that, when conjugated increase the risk of accident, were observed.

© 2018 Taylor & Francis Group, London.The construction of underground works carries a high prevention in terms of safety, being considered works of high risk. These works are considered of great importance, being necessary the intervention of knowledge where experience, creativity and theory, play an important role. It is necessary to ensure the safety of all actors involved in performing underground works, and companies are responsible for taking all necessary precautions to ensure that the safety plan is implemented correctly. In order to deepen his knowledge on this subject, the author carried out his study entitled “Risk Analysis in the Execution of the Holy Water Tunnel”. With the purpose of develop this work, the researchers were allowed to follow the various phases of the Águas Santas tunnel project. For the risk analysis and hierarchization, the William T. Fine Method was used. It was concluded that In addition to the achievement of a good safety plan, it is the responsibility of all stakeholders to respect all safety rules, from the use of personal and collective protection equipment to signage, in order to reduce or even eliminate the risk of accidents.

© 2018 Taylor & Francis Group, London.In this work the main differences between the machines, tools and equipment of construction site in the civil construction are presented, and to do it so, on this research work is presented a practical example of the types of maintenance required. Given the diversity of machines and equipment, it would not be possible in a job of this type to approach them all, so it was decided to choose one. It is emphasized that it was decided to speak in detail about the cranes, since it is one of the most used equipment in the most diverse works.

© 2015 Elsevier Ltd.This paper aims to assess the impact of environmental noise in the vicinity of primary schools and to analyze its influence in the workplace and in student performance through perceptions and objective evaluation. The subjective evaluation consisted of the application of questionnaires to students and teachers, and the objective assessment consisted of measuring in situ noise levels. The survey covered nine classes located in three primary schools. Statistical Package for Social Sciences was used for data processing and to draw conclusions. Additionally, the relationship of the difference between environmental and background noise levels of each classroom and students with difficulties in hearing the teacher's voice was examined. Noise levels in front of the school, the schoolyard, and the most noise-exposed classrooms (occupied and unoccupied) were measured. Indoor noise levels were much higher than World Health Organization (WHO) recommended values: LAeq,30min averaged 70.5 dB(A) in occupied classrooms, and 38.6 dB(A) in unoccupied ones. Measurements of indoor and outdoor noise suggest that noise from the outside (road, schoolyard) affects the background noise level in classrooms but in varying degrees. It was concluded that the façades most exposed to road traffic noise are subjected to values higher than 55.0 dB(A), and noise levels inside the classrooms are mainly due to the schoolyard, students, and the road traffic. The difference between background (LA95,30min) and the equivalent noise levels (LAeq,30min) in occupied classrooms was 19.2 dB(A), which shows that students' activities are a significant source of classroom noise.

© 2016 The Authors.The goal of this work is to present a simple tool which can assess the lot layout and coverage of a business park by using three indicators. The street frontage indicator evaluates the suitability of the spatial arrangement of the lot in order to ensure proper access to service vehicles, staff and visitors. The lot shape indicator evaluates the performance of the lot design solutions according to the concept of compactness. The land use intensity indicator intends to evaluate the quality of the site being developed regarding its building density. The assessment tool was applied to a business park located in Portugal, proved to be efficient and the results are discussed.