Chapter
May 13, 2014
A Stochastic Process to Model the Fluctuations of Asphalt Cement Price
Authors: Mohammad Ilbeigi [email protected], Baabak Ashuri [email protected], and Yang Hui [email protected]Author Affiliations
Publication: Construction Research Congress 2014: Construction in a Global Network
Abstract
Transportation agencies and highway contractors are facing great challenges of variations in construction costs for transportation projects. Significant volatility in costs of construction materials, such as asphalt cement, is one of the most important drivers of uncertainty about transportation project costs. This type of uncertainty leads to serious difficulties for contractors in estimating project costs accurately. However, there is little knowledge about how asphalt cement price fluctuates over time. This gap in knowledge makes it difficult for contractors and transportation agencies to estimate project costs accurately. The research objective of this paper was to model fluctuations of asphalt cement price by using an appropriate stochastic process. It is concluded that the geometric brownian motion (GBM) is a good stochastic process to model random variations of asphalt cement price over time. A probabilistic approach based on the Monte Carlo simulation is applied on the GBM model to simulate future random paths for asphalt cement price index. It is expected that this work helps contractors and transportation agencies systematically analyze variations in the price of asphalt cement and develop more accurate estimations for their transportation projects.
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© 2014 American Society of Civil Engineers.
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Published online: May 13, 2014
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Graduate Research Assistant, Economics of the Sustainable Built Environment (ESBE) Lab, School of Building Construction, Georgia Institute of Technology, Atlanta, Georgia.E-mail: [email protected]
Director, Assistant Professor, Economics of the Sustainable Built Environment (ESBE) Lab, Chair Integrated Project Delivery Systems, School of Building Construction Georgia Institute of Technology, Atlanta, Georgia.E-mail: [email protected]
Master's Student, School of Industrial and Systems Engineering, Georgia Institute of Technology, Atlanta, Georgia.E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.