The aim of this study is to know some implications of alcohol consumption and its relation with the work performed by the workers in a construction company, in the city of Santiago, state of Rio Grande do Sul. a research of applied nature, qualitative-quantitative approach, descriptive-exploratory objectives and bibliographic, survey and field procedures. The results show that all workers use alcohol and / or cigarettes. This may have been triggered by frustrations at work, such as low pay and low professional growth prospects. However, even if it was not motivated by work-related issues, it has aggravated it. Alcoholism is a problem whose origin is more complex: social inequality. Access to education is deficient and causes inequality in training and the consequent search for a better job. Until a fair social equality is achieved, strategies must be made available, adequate to the reality of each service, for the prevention of diseases and the promotion of workers' health.

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The study uses the Theory of Graphs in the implementation of bike lane in city with population between 70 and 100 thousand inhabitants, so that it is possible to calculate the shortest path between two vertices. The edges of this graph are the streets and avenues of the city. The process of choosing these streets is defined as Routing Problem in Arches based on the Smallest Path Problem can minimize costs, distances and path time. We conclude that graph theory has been successfully applied in a path defined with the aid of issues related to the graph.

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