An automatic three-dimensional extension of Trimble's PCS400 paving control system, a new PCS900 paving screed control system added to the paver allows the contractor to switch from two-dimensional trade and slope mode to 3D mode depending on project requirements. A combination of the PCS400 and PCS900 systems provides a choice between sonic sensors, slope sensor, sonic average beam, 3D slope and 3D elevation control on each side of the screed.
