01593511

Component

The recently developed deflection-induced pavement-vehicle interaction analysis links the structural performance of the pavement to the fuel consumption of moving vehicles and the subsequent greenhouse gas emissions during the pavement use-phase. Accurate estimations of these impacts are tightly dependent on the proper evaluation of pavement structural parameters, including the properties of the surface course and underlying layers. A recent study demonstrated that inertia and damping effects of underlying layers must be taken into account for pavements subjected to dynamic loads, and that accurate parameters of pavement model could be backcalculated using the falling weight deflectometer measurements. In this paper, the pavement-vehicle interaction analysis is modified accordingly. Then, a case study is performed using multiple time histories of falling weight deflectometer deflections collected over a year’s time for a rigid and a flexible pavement. Analysis of deflection basins showcases how falling weight deflectometer measurements can be used for estimating the deflection-induced vehicle fuel consumption for both rigid and flexible pavements. The simplicity and accuracy of the demonstrated analyses show a lot of promise for wider application of this methodology, especially regarding sustainable development of pavement network.

This paper was sponsored by TRB committee AFD00 Section - Pavement Management.

01584066

16-6246

English

17p

2016

Transportation Research Board 95th Annual Meeting

Digital/other

Figures; References; Tables

Backcalculation; Case studies; Deflection; Falling weight deflectometers; Flexible pavements; Fuel consumption; Rigid pavements

Highways; Pavements

Transportation Research Board Annual Meeting 2016 Paper #16-6246

TRIS, TRB, ATRI

Jan 12 2016 6:46PM