01590356

Component

The ability to predict pavement performance can reduce the amount spent on road maintenance and rehabilitation, and ultimately result in the more efficient use of funding. As such, most road agencies monitor the condition of their road networks on a regular basis. However, the lack of a suitable device for assessing the structural performance of the pavement, under load, at a network level, means agencies typically focus on the functional performance of the pavement (surface property characteristics), despite the fact that pavements are usually designed and built to meet specific structural needs. The Greenwood Traffic Speed Deflectometer (TSD) is an innovative device for assessing pavement structural condition and, when fitted with additional pavement data collection systems, can collect both functional and structural pavement condition data simultaneously at highway speed. This eliminates risk and the requirement for traffic control, and enables entire road networks to be surveyed efficiently with a single piece of equipment. This paper documents the journey, or process, required to transform the TSD from a new and innovative technology into a robust system capable of the routine and safe collection of structural and functional condition data across several Australian and New Zealand road networks.

This paper was sponsored by TRB committee AFD20 Standing Committee on Pavement Monitoring and Evaluation.

01584066

16-3190

English

12p

2016

Transportation Research Board 95th Annual Meeting

Digital/other

Figures; Photos; References

Condition surveys; Deflectometers; Pavement performance

Traffic speed deflectometers

Australia; New Zealand

Highways; Pavements; I23: Properties of Road Surfaces

Transportation Research Board Annual Meeting 2016 Paper #16-3190

TRIS, TRB, ATRI

Jan 12 2016 5:25PM