---
title: "Ballast Volume Summary Report"
canonical: "https://support.cordel.ai/space/CSD/1686142977/Ballast%20Volume%20Summary%20Report"
format: markdown
---
The ballast volume summary report summarises information from the Ballast Volume Report on a per flight line (typically kilometre) basis. This is include in the zip file *_BallastVolumtericReports.zip

Infringing conditions are when there is insufficient ballast under the sleeper or insufficient volume in the profile as a whole (e.g. if the shoulder was continuously shorter than what is specified then this would bring the volume down).

As the LiDAR only is able to make surface measurements, depth is inferred based on extrapolation of the foundation on which the ballast is lain. Where the foundation is not clearly seen (e.g. due to the presence of track equipment, too much vegetation / detritus near the batter/foundation edge or at bridges, level crossings and some culverts) it will unavoidably invalidate the measurement and several quality measurements are included in order to diagnose these cases.

A volume measurement is made by combining up 1 metre transects into a longer pre-configured span (e.g. 20 m, but may be shortened due to the presence of level crossings and bridges which are excluded). Each metre transect will measure the volume based on integrating the heights of the ballast profile above an inferred foundation slope based on the best left or right fit.

**Example file:**

```
TrackCode,Km,Depth(m),Longitude,Latitude,Altitude,Easting,Northing,MeanDepth,VolumeDeficit
NGD 0,584.9993,1000.9,134.536233438,-30.020437073,146.25,455279.71,6678859.50,0.212,23.794
NGD 0,586.0002,998.9,134.536336893,-30.011375289,146.17,455285.62,6679863.68,0.276,1.612
NGD 0,586.9991,1001.3,134.536441748,-30.002287278,147.11,455291.66,6680870.76,0.351,4.919
NGD 0,588.0005,998.4,134.536543894,-29.9933783,149.02,455297.52,6681858.00,0.314,8.249
NGD 0,588.9989,1001.4,134.536647923,-29.984345082,149.74,455303.51,6682859.01,0.227,59.896
```

# File naming convention

no LRS match: Unknown_MLSINF_{metaname}_BallastVolumetricSummaryReport.csv

has LRS match: {Track}[{StartPost as X,XXX.XX}-{EndPost as X,XXX.XX}]_MLSINF_{metaname}_BallastVolumetricSummaryReport.csv


# Column description

| **Column name** | **Description** | **Example** |
| --- | --- | --- |
| TrackCode | LRS trackcode the trajectory has matched to. | NGD 0 |
| Km | LRS distance in kilometres. | 515.3446 |
| Depth(m) | Length in metres over which the volumetric measurement is made. | 1000.2 |
| Longitude, Latitude and Altitude | WGS84 geodetic coordinates for the start of the flight line. | 134.517936342,-30.657513808,118.59 |
| Easting, Northing | Projected Coordinates for the start of the flight line. | 453814.86,6608226.08 |
| MeanDepth | Depth in metres of the ballast below the bottom of the centre of the sleeper, averaged over the length of the flight line. | 0.145 |
| VolumeDeficit | The sum of all deficits (i.e. positive differences of the Design Volume less the measured Volume) for each transect over the flight line. | 58.121 |