Estudo de caso dos custos de terraplenagem e pavimentação constantes no orçamento da rodovia GO-591 entre o município de Cabeceiras de Goiás/Divisa GO-MG

Abstract

The costs involved in earthworks and paving for a highway can vary widely due to factors such as location, site characteristics, pavement type, material availability, project requirements, and construction delays. Regarding the GO-591 Highway specifically the section between the municipality of Cabeceiras de Goiás and the GO-MG state border significant discrepancies were observed between projected/tendered figures and the costs actually incurred during execution. Given this context, this study aims to identify the primary drivers of cost variations across each phase of the process by critically analyzing the cost differences. To achieve this objective, an exploratory applied research study was conducted using a quantitative approach and a deductive method, enabling a detailed analysis of the variables influencing the project's financial execution. Analysis of the data revealed significant budgetary variations in both service categories studied: earthworks and paving. These variations stemmed from contract amendments necessitated by delays in the physical-financial schedule and contractual price adjustments, as the initial contract stipulated a seven-month completion timeline. However, due to work stoppages and fluctuations in the prices of paving inputs and asphalt materials, the schedule was extended by 18 months, resulting in significant financial impacts on the earthworks and paving components by the project's conclusion