Planning Oversized Vehicle Routes Using Vehicle Speed Data

A state government wanted to understand where to put turnout lanes to minimise disruption caused by oversized freight vehicles during major projects.

Transport Main Roads Queensland (TMR) required locations for turnout lanes to minimise disruption and congestion across the road network caused by oversized freight vehicles during major projects. Specifically, they wanted to understand the difference between the speed limit and operating vehicle speed, and the routes taken by supersized vehicles carrying parts of wind turbines from the port of Townsville towards the installation site. 

Approximately 300 turbines are to be transported and installed at a site, 30km away from the Port of Townsville. This had the potential to drastically slow traffic that share routes with the oversized vehicles

Connected Vehicle data revealed the locations where the trucks travelled significantly slower than the posted speed limit. They also identified elevation changes and how steeper road elevation impacted actual oversized vehicle speeds.  Understanding where the greatest difference is between the speed limit and the actual speed of trucks helped TMR to make informed data-backed decisions about where to put the bypass lanes to minimise congestion. 

As a result of the project, TMR were able to identify locations to install turnout lanes to minimise disruption to the road network caused by the oversized freight vehicles.