Live compaction data can also help you recognize potential problems before they occur. Edwards offers the example of a roller crew that can reach a compaction level of 8 across most sites but only a 4 in a particular location. This may be an indicator of a failing utility below the road or a problem spot in the gravel base that should be investigated before the job is completed.
When set up on a tablet in the machine, BOMAP Connect uses the tablet's GPS signal to plot the machine's location. Accuracy can be improved by adding a GPS antenna to the machine, giving position accuracy up to 20 centimetres. This is more than enough accuracy for a roadway or similar project, Edwards says. Millimetre accuracy can be achieved by connecting to base stations on the site.
"Most of our customers have found that the 20 centimetre accuracy works for them. Generally, we are overlapping passes slightly anyways to ensure overall coverage," he notes.