The development of the Impulse Index as an indicator of pavement condition has been previously described in a report of the College of Engineering Research Division of Washington State University entitled, "Pavement Deflection Measurement--Dynamic--A Feasibility Study, Final Report," June 1970, by Frank W. Brands, PE and John C. Cook, PE.
Implementation of automatic data acquisition using impulse testing requires the development of a mechanical device to set an instrument package on the pavement, deliver an impulse of energy, and retrieve the instrument package. This is to be done automatically with the vehicle proceeding down the highway. This report describes a test model built to facilitate the determination of data necessary for design of a prototype vehicle.
Washington State University. College of Engineering. Research Division.
Deflection, Dynamic tests, Evaluation, Impulse tests, Mathematical models, Pavement performance, Pavements, Test vehicles.