Measurement of pavement deflection under a moving wheel utilizing scanning laser technology

William J. Herr; Wayne G. Johnson

doi:10.1117/12.213550

7 July 1995 Measurement of pavement deflection under a moving wheel utilizing scanning laser technology

William J. Herr, Wayne G. Johnson

Proceedings Volume 2455, Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials; (1995) https://doi.org/10.1117/12.213550
Event: Nondestructive Evaluation of Aging Infrastructure, 1995, Oakland, CA, United States

Abstract

A review is presented of past and current technology used to measure pavement deflection. The configuration for an improved system for deflection measurement which is currently under development is presented. The rolling wheel deflectometer (RWD) based on scanning Lidar profiling is described and rationale and proposed procedures for RWD use and data analysis are presented. Also included are projected calculation procedures for backcalculation of layer moduli from a rolling wheel load.

Citation Download Citation

William J. Herr and Wayne G. Johnson "Measurement of pavement deflection under a moving wheel utilizing scanning laser technology", Proc. SPIE 2455, Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials, (7 July 1995); https://doi.org/10.1117/12.213550

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