Fuel Usage Factors in Highway and Bridge Construction (2013) / Chapter Skim
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1 Price adjustments of selected commodities in highway construction are used in construction contracting as a way of limiting risks to the contractor arising from price fluctuations of these commodities over the life of a contract. Fuel usage factors are commonly applied by state and local agencies in calculating fuel cost price adjustments in a contract specification that permits cost escalation and de-escalation.
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2 Fuel usage Factors in Highway and Bridge Construction aggregate and asphalt production, and structure construction. Each of these activities received a high, low, and average factor.
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Fuel usage Factors in Highway and Bridge Construction 3 factor ranges would be useful for 16 states. Urban/rural and hauling distance were the most popular options when selecting additional variables for the system, receiving 20 and 19 selections respectively, although 16 states would not want any additional variables.
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4 Fuel usage Factors in Highway and Bridge Construction The initial engineering analysis consisted of the following three parts: • Creating a list of pay items to study by filtering unsuitable pay items, • Creating a ranking system to apply to the pay items, and • Performing the fuel use ranking of each pay item and pay item category. Historically, the most common categories of pay items used for fuel use factors are grading, asphalt, base stone, and concrete pavement.
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Fuel usage Factors in Highway and Bridge Construction 5 to establish current levels of fuel use across a variety of construction activities and project conditions. The project team utilized several surveys, including an Excel spreadsheet tool and several industry-segment-specific SurveyMonkey surveys, to elicit contractor responses.
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6 Fuel usage Factors in Highway and Bridge Construction might choose approaches and equipment that differ slightly from those presented, the fuel use calculations provided represent realistic baseline numbers for a detailed set of average work tasks. Final Statistical Analysis of Fuel Usage The objective of the BidTabs statistical analysis was to estimate the fuel usage of construction activities using a statistical model that incorporates changing fuel prices and bid prices.
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Fuel usage Factors in Highway and Bridge Construction 7 Data Comparison and Fuel Usage Factor Development In developing the final fuel usage estimates by pay item, the study compares the information available in the existing literature with the fuel usage data developed using the three project methodologies. These sources are as follows.
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8 Fuel usage Factors in Highway and Bridge Construction The research revealed six major additional markets for the results of this study. These include • Other agencies responsible for highway contracting; • Agencies responsible for construction of facilities for other transportation modes; • Associations representing industries that build highways or provide goods to highway builders; • Officials interested in improving planning and budgeting; • Contractors interested in better understanding and managing their fuel use or in preparing more accurate cost estimates; and • Researchers examining energy requirements, emissions, and climate change.
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Fuel usage Factors in Highway and Bridge Construction 9 Category Item of Work Units FUF 1980 FUF Clearing and Removal Clearing Gallons/Acre 191.200 200.000 Pipe Removal Gallons/L.F. 0.863 Pavement Removal - Asphalt Gallons/C.Y.
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10 Fuel usage Factors in Highway and Bridge Construction Project Outreach Plan Another product of this research effort is the outreach and dissemination plan to publicize the results of NCHRP Project 10-81. This project includes a variety of products that will be useful in educating and assisting the highway construction community in the adoption of revised and updated fuel usage factors.
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