ABSTRACT
Deflection information can be used as a global parameter to define the overall performance of a pavement. In this paper, deflection data from an instrumented section on a French motorway is analysed. A method for the measurement of deflections using geophones, embedded in pavement layers, is presented. Geophones measure the vertical velocity, and by treating and integrating their signals, the pavement deflection can be determined. This work focuses on the multiple applications of geophones, using the deflection to gather information on the pavement structure and the traffic on the motorway. It highlights the importance of continuous monitoring of roads, and different possibilities of interpretation of the acquired data from an instrumented road.
