Abstract
A method for estimating the in situ coefficient of rolling friction of a parking garage incline is developed from fundamental physics principles and tested with experimental data. At Florida Gulf Coast University’s Parking Garage #1, between Levels 3 and 4, an SUV starts from rest at the top of the incline and accelerates down the slope under its own weight opposed by friction. Experimental measurements of displacement, time interval, and incline angle, along with the relevant physical analysis of rolling friction on an incline, produce an estimated value of μ_r=0.04±0.01 for the coefficient of rolling friction. In the trial conducted, 59% of the initial gravitational energy was lost due to friction (i.e. an efficiency of η≈41%).
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