Abstract
Exceeding the approved budget is often an integral part of the implementation of construction projects, especially those where unforeseen threats may occur. Therefore, each construction investment should contain elements of risk forecasting, mainly in terms of the cost of its implementation. Only a small number of institutions apply effective cost control methods, taking into account the specifics of a given industry. Especially small construction companies that participate in the structure of the implementation of large construction projects as subcontractors. The article presents a method by which it is possible to determine, with certain probability, the final cost of railway construction investments carried out in Poland. The method was based on a reliable database of risk factors published in sources. In this article, the main presumptions of the original method are presented, which take into account the impact of potential, previously recognized, risks specific to railway investments, and enable project managers to relate them to the conditions where the implementation of a specific object is planned. The authors assumed that such a relatively simple method, supported by a suitable computational program, would encourage teams that plan to implement railway projects to use it and increase the credibility of their schedules.
Highlights
Sustainable development is considered one of the major global challenges facing the world today and is an important aspect of transport development
To facilitate the application of the computations, we developed a special calculation sheet in Excel, in which user-defined data calculates the percentage index of weighting for individual risk factors and the costs of individual stages of work
In accordance with the assumptions of the method, in the first step, the risk matrices were completed in terms of the consequences of the impact of individual risk factors on the tested object (Figure 2, column 9)
Summary
Sustainable development is considered one of the major global challenges facing the world today and is an important aspect of transport development. As the most environmentally friendly transport, rail transport has an important role in creating sustainable lifestyles and economies. From the point of view of the national economy, the development of the transport sector is a key process in which many other sectors are involved. When properly organized and coordinated, sustainable development of the transport sector leads to synergies with other sectors [1]. Zeng et al noted that using trains to move passengers and goods helps protect the environment by reducing energy consumption and emissions of pollutants such as CO2 into the atmosphere [2]. Given its lower environmental impact and high traffic volume, rail transport can become an important sustainable system in the future [4]. The use of rail transport is an important way to reduce energy consumption and emissions of pollutants into the atmosphere
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