Newsletter June 2015

The Traffic Speed Deflectometer: A new method for collecting road pavement condition data

Over the summer the Transport Agency has been testing a 15 metre truck and trailer unit on the state highway network to collect pavement condition data. The  purpose of collecting this data is to help the agency make better decisions about future road pavement maintenance for the state highway network. In order to  collect the data the truck and trailer unit has inside state of the art technology the employ banks of computers, lasers and 3D cameras that capture data for a  range of indicators. The complex network of Doppler lasers measure the amount of reverberations of the of the pavement while it is being driven to determine its structural strength; while an array of high-speed laser systems also detect cracks and the profile of the road.