Pavement surface profiles induce dynamic ride responses in vehicles which can potentially be used to classify road surface roughness. A novel method is proposed for the characterisation of pavement roughness through an analysis of vehicle accelerations. A combinatorial optimisation technique is applied to the determination of pavement profile heights based on measured accelerations at and above the vehicle axle. Such an approach, using low-cost inertial sensors, would provide an inexpensive alternative to the costly laser-based profile measurement vehicles. The concept is numerically validated using a half-car roll dynamic model to infer measurements of road profiles in both the left and right wheel paths.
Harris, N. K., Gonzalez, A., OBrien, E. J., & McGetrick, P. (2010). Characterisation of pavement profile heights using accelerometer readings and a combinatorial optimisation technique. Journal of Sound and Vibration, 329(5), 497-508. https://doi.org/10.1016/j.jsv.2009.09.035