Did you know that TraceAir can help you verify billing quantities from your contractor and track progress of work completed? If you’re using timecards, truck counts, and other methods to calculate progress, learn how TraceAir can add an objective perspective.

TraceAir has several tools that make verifying contractor bills quick and easy. Read below for how to use TraceAir’s measurement and volumetric tools to improve your workflows.

Check Visual Progress

TraceAir’s Time Machine feature makes it easy to visually compare changes between different scans in a given area if you have regular scans. For example, some changes you can check for include:

  • When a stockpile began, grew, shrank, or disappeared

  • Equipment and trailer movement and locations

  • Equipment arrival

  • Grading progress

  • Errors or damage

  • Area cleanup

  • Rainwater removal

To perform a visual check, use the following steps:

  1. Position the frame over the desired area and adjust the zoom to the level you need.

  2. Scroll the previews of this area in the sidebar and find the scan you're looking for in seconds.

  3. Click on the preview to navigate to this scan to determine changes using a visual inspection.

Check and Measure Volumetric Grading Progress

To quickly check grading progress and visualize how dirt moved on site, TraceAir’s Compare Surfaces tool allows you to look back to see Cut and Fill that has occurred, either since the last scan or since the beginning of the project, and allows you to look forward to see what Cut and Fill remains to meet design grade.

To check for volumetric changes on site, use the following steps:

  1. Navigate to the most recent scan you’d like to compare using the scans list in the sidebar.

  2. Select the Compare Surfaces Tab in the Sidebar to compare the selected date to the design grade, original ground or a previous scan.

  3. Your selection will activate the Cut & Fill map for either the remaining grading (compare to the Design grade) or to the work completed (compare to the original ground or previous scan). When comparing a scan to a previous one, the red color marks areas that were raised (filled). The blue color marks the areas that were lowered (cut). White areas indicate regions where there was almost no change in the elevation between the two dates compared.

  4. Click Cancel Comparing to exit the feature and return to the orthophoto (aerial image) view.

In order to measure volumetric changes on site, TraceAir’s Track Quantities tools can be used to calculate quantities of dirt moved between scans. This is a quick and easy way to verify billing from grading contractors to ensure appropriate payment for the work performed.

To measure volumetric changes on site, use the following steps:

  1. Start by selecting Plan & Track in the top left of the screen, then select Track Quantities. The Cut/Fill heatmap will load. There is a scale for the heatmap colors in the lower-right corner of the window.

  2. To quantify a specific area, select the starting point of what you want to be measured. Continue to click to outline what you want to cover. When you have determined the endpoint, click the checkmark. Your calculations appear in a new window. By default, you will see the volume of the dirt moved between the last two dates: the scan visible on your map and the previous one. You can select another date to compare to from the drop-down menu.

  3. The relative tab shows the amount of dirt moved (cut and filled) between selected flyovers. Using the cumulative tab may be valuable when you need to get the accumulated cuts and fills between each of the consecutive scans within a wide range of dates: for example, if you would like to evaluate the volume of dirt that was moved twice between the selected dates. For that, choose the earlier scan from the drop-down menu. And then click "Recalculate" to update the measurement.

Measure Utility and Paving Progress

TraceAir’s measurement tools are useful for verifying contractor billing by doing a quick as-built takeoff. These quantities can be used to verify the amount of work performed (linear feet of utilities installed or surface area of roads paved) on your project.

To measure linear feet of utilities installed, TraceAir’s Distance and Slope tool can be used:

  1. Select Measure, then Distance and Slope.

  2. Click the points between which you want to measure. Click the check mark to calculate the distance. Distance is the straight distance between the points you have selected. Overground distance takes the terrain into account, so the overground distance is always longer than the straight distance. Average grade is the slope between the first and the last point on the line you have selected.

  3. You may save these measurements for future reference.

To measure an area of completed paving, you can use the Area and Perimeter tool.

  1. Select Measure, then Area and Perimeter.

  2. Click to draw a polygon around the area you want to measure. Click the check mark to calculate the area.

  3. Click Add More Measurements to continue to add areas to your calculation.

  4. You may export these quantities as an Excel file or save them as markups in TraceAir for future reference.

We hope these tips and tricks will help you work more efficiently. If you have any questions, please reach out to TraceAir’s Customer Support team.

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