Paper - Sustainable construction and development implies investing in the needs of today without compromising the resources of future generations to meet their needs. Reducing user costs by improving fuel economy from pavement type is important to advance sustainable development. An ongoing study of fuel consumption by vehicles traveling on rigid versus flexible pavements at Florida International University (FIU) Department of Civil and Environmental Engineering indicates that rigid pavements provide better fuel economy for the travelling public and commercial carriers. The FIU study along 28 miles of Interstate 95 in Brevard County indicates that travelers in passenger vehicles on rigid pavements use 3.2% less fuel compared to flexible pavements. In addition, the study shows that loaded tractor-trailers along the same corridor the rigid pavement provides 4.5% better fuel economy than the flexible pavement. While benefits are extrapolated estimates, the findings of this study indicate the potential for real sustainable benefits by increasing rigid pavement lane miles into agency work programs.
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