Creating line marking reports

  1. In the main menu, go to Data.
  2. In the toolbar, select Lists.
    Active filters affect the data in the report.
  3. In the drop-down list at the top, select Videos.
  4. To include all videos displayed in the list, select Selection > Select all.
  5. Select Action > Create report.
    The Report type window opens.
  6. In the Report type drop-down list, select Road segment interval report. Select Next.
  7. In the File format window, select a file format. Select Next.
  8. In the Distance configuration window:
    • Select Report whole road segments to report road sections as they are defined in the road network geometry.
    • Not selecting Report whole road segments splits the road sections into regular intervals. In the Segment interval length field, type a value to define the interval length.
  9. In the Parameters window, select Line markings. Optionally, open the selection tree to only select specific types of line markings. Select Next.
  10. In the Data validity window, select Defaults. The default filters are recommended for the most accurate data. Select Next.
  11. Select a distance unit. Select Next.
  12. In the Aggregation window, select an aggregation method.
    The resolution of the raw measurement data is 5 m, so if the chosen interval length is 50 m, each interval can have up to 10 measurements (50 m / 5 m = 10). These multiple measurements are then aggregated into a single representative value visible in the report. The following example is a visualization of how aggregation is calculated with each method in a 50 m road segment interval, depending on which option you choose for the Distress aggregation method and the Score aggregation method.
    This is not a visualization of the actual report.
    Distress aggregation method: 50‑meter road segment interval aggregation example
    5 m data samples 0 m 5 m 10 m 15 m 20 m 25 m 30 m 35 m 40 m 45 m
    Distress severity value 43 30 33 100 100 0 0 19 25 33
    Score aggregation method Result
    Select most severe value 100
    Calculate average value 38

    This method calculates the distress-specific values that are reported for the chosen interval length (50 m in this example).

    • Choosing Select most severe value picks the worst of all values (100 in this example) to represent the whole interval.
      tip The more severe the distress, the higher the value.
    • Choosing Calculate average value calculates the average of all the values in the interval (38 in this example).
    Score aggregation method: 50‑meter road segment interval aggregation example
    5 m data samples 0 m 5 m 10 m 15 m 20 m 25 m 30 m 35 m 40 m 45 m
    Condition scores 10 67 95 100 100 0 0 0 46 67
    Score aggregation method Result
    Select most severe value 0
    Calculate average value 48
    Calculate weighted average value
    • 0 %: 0
    • 25 %: 0
    • 50 %: 0
    • 75 %: 38
    • 100 %: 48

    This method calculates the overall road surface condition score for the chosen interval length (50 m in this example).

    • Choosing Select most severe value picks the worst of all values (0 in this example) to represent the whole interval.
      tip The worse the condition, the lower the value.
    • Choosing Calculate average value calculates the average of all the values in the interval (48 in this example).
    • Choosing Calculate weighted average value allows you to weight the poor condition roads in the score aggregation. Use the slider to set the Min. zero score proportion.
      • 0% means choosing the lowest value (same result as choosing Select most severe value)
      • 100% mean the plain average (same result as choosing Calculate average value)
      • The other options are in between the two, with the values closer to 0% placing more overweight on lower condition score values.
      Set the Min. zero score proportion of each measured value that should result in a zero total score (while the other non-zero scores are 100). As shown in the previous example, if the Min. zero score proportion is set to 25%, the score of the interval will be 0 if at least 25% of the values equal to 0 (even if some values are of 100).
  13. Select Next.
  14. In the Additional options window, selecting:
    • Directional: determines if the report is calculated for both driving directions separately
    • Multiple drives: combines data from multiple drives to produce even more robust results. For both driving directions, up to three different drives can be used. The maximum time difference to the latest drive is two weeks.
    • Merge driving directions: combines data from opposite driving directions to create a more complete view on the road condition. The maximum time difference to the latest drive is two weeks. If disabled, only the latest data from the opposite driving directions is selected for each location.
  15. Select Create to create the report.
    A confirmation message appears. You will get a notification in Notifications and an email with a download link when the report is ready.