Trimble WorksOS Help
Compaction Metrics provide insight into the quality of compaction for the project or area of interest. Using the Dashboard is recommended as it saves a set of filters than can be leveraged to quickly filter to the Map. These values can be filtered to a specific design boundary area, custom area or based on an alignment file to provide spatial context. Additionally, machine specific filters or compaction parameters can be added to the filter criteria as well that refine that data.
Click a dashboard widget to open the Map view using the same filters.
Select different compaction metrics in the list.
See descriptions in Filters You can Apply.
Pass count - For Summary values, the pass counts are mapped anywhere you have a target set up, whereas Details are mapped regardless of whether you have a target set or not. Details show percentages of each of the pass count ranges you have set up, which can be configured in Settings > Project > Custom (targets). You can use the profile tool to see a profile of the quality metric. The color of the line shows not only the elevation, but the pass count in that location.
WorksOS shows a Pass Count Summary where the machine has a target Pass Count setting (if applicable).
Using that or setting a target in Pass Count Settings will populate data in Pass Count Summary. The Profile line is colored the same color as the cells that have been profiled. The color of the cell determines how many passes it has, also clicking on the cell node (or turning on Cell Markers and clicking will also reveal this info).
CMV - These values are mapped three different ways:
Details shows the raw CMV reading from the machine; i.e., the last pass for the filtered data.
CMV % change maps the difference in CMV percentage between the most recent pass and the previous pass. This helps you identify where CMV is decreasing from pass to pass.
Summary values map the CMV values according to the targets you set.
Machine Drive Power (MDP) - This value, which is not used on vibratory compactors, shows colors for on-target (within a threshold) or over/under the target.
Speed - Machine or GPS speed (whichever is available) is mapped according to a target threshold’s summary values. Speed considers all passes, so anywhere outside of tolerance will be colored as outside of the target threshold. Only areas where every pass was on target are mapped green. Blue trumps green and red trumps blue. This is a key metric for vibratory roller in achieving quality compaction.
Temperature - Mapped according to an asphalt temperature threshold. The last pass (within the specified filter) is always shown.