Create a Site Mass Haul Analysis

Use the Create Site Mass Haul Analysis command to determine the most efficient distribution of in situ earthen material from cut zones to fill zones. Mass haul analyses also help you:

estimate the earthwork costs of transforming your existing surface into a design surface
determine if the site has an excess or deficit of material.

Prerequisites:

License; See Licensed Features to determine if your license supports this feature.
Cut/fill map
Zones defined by boundaries or linestrings that intersect to form a closed area.
In situ earthen material with shrinkage and bulkage factors defined, if you want a more precise analysis
In situ earthen material with the percent usable defined, if you want only usable material used as fill.

To access the command:

Select Create Site Mass Haul Analysis in Site Mass Haul > Analysis.

To analyze site mass haul needs:

In the Name box, type a unique identifier for the analysis as you want it to appear in the Project Explorer and Properties pane. Each analysis you create is a snapshot of the current state of the site, so if you plan to run more than one analysis, name the analysis to reflect a point in time.
Select a cut/fill map to analyze in the Cut/Fill map list or select <New> to create a cut/fill map.

In the Haul Zones group, click to add the cut and fill zones that you want to include in the analysis. The Edit Haul Zone Boundaries pane displays.
Pick one or more lines (CAD lines, linestrings, boundaries, and/or alignments) that encompass cut or fill areas in the Plan View, or click Options for selection options. Areas enclosed by the selected linestrings and boundaries are used as zones in the mass haul analysis.
Note: If a zone encompasses another zone a hole in the zones surface occurs. The volume computed for the zone is the volume from the outer zone minus the volume from the inside zone. See Understanding Holes, Islands and Overlapping Areas.
Click Add. The selected lines are added and used to create zones.
To remove unneeded boundaries or linestrings, pick them and click Remove.
Click Close. To visually confirm which lines will be used to form zones, click Select in the Haul Zones group.
To force the Mass Haul Analysis to use only existing haul roads, in the Haul Roads group, select No in the Auto-create path list.
To view the optimal distribution of earthen material, in the Haul Roads group, select Yes in the Auto-create path list. When required, paths are created:
- from the center of mass of cut zones to the center of mass of fill zones.
- from cut zones to waste sites.
- from borrow sites to fill sites.
Paths are only created if there is not a suitable haul road to transfer the material.
Example: Zone 1 has excess cut and Zone 2 requires fill. The Mass Haul Analysis determines that the optimal solution involves transferring material from Zone 1 to Zone 2. There is not a haul road between Zone 1 and Zone 2. If Auto-create path is set to Yes a path is created and material is transferred from Zone 1 to Zone 2. If Auto-create path is set to No a path is not created and the excess material from Zone 1 is sent somewhere else.
If there is a haul road between Zone 1 and Zone 2 and Auto-create path is set to Yes the existing haul road is used and a path between zone 1 and zone 2 is not created.
Note: You can convert automatically generated paths to haul roads using the Convert to haul road command.
In the Haul Cost box, specify the cost to transport one volume unit of material (in loose haul state) one mile/kilometer. This cost is used when material is transferred from cut zones to fill zones along auto generated paths.
In the Dispersion Cost box, specify the cost to disperse one volume unit of material (in loose haul state) one mile/kilometer from the end of the haul route around the fill zone.
In the Collection Cost box, specify the cost to collect one volume unit of material (in loose haul state) one mile/kilometer from around the cut zone to the start of the haul route.
Note: This command displays the currency symbol and format that you have set in Microsoft Windows^® Regional and Language Options. The units and calculations, however, are not associated with a specific currency, so if a project is opened on a computer with different regional settings, those currency symbol and formats are used, but no conversion between currencies has been made.
Select Account for shrinkage and bulkage for a more precise analysis when you know
- the shrinkage and bulkage values of the in situ earthen materials or the borrow material
- the percentage of material that is unusable.
  If you clicked Account for shrinkage and bulkage, specify materials in the lists:
- Native material - Select the uppermost earthen material of the original ground surface or native material that exists on-site.
  Note: Earthen (select) materials are typically processed offsite and/or then purchased as fill materials, so (unlike earthen (mass earthworks) materials) they are not applicable to select and use as native, in-situ materials.
- Borrow material - Select a material to be obtained from earthwork sites should there be a net deficit in material, meaning that a non-native material must be brought from off site. This borrow material is only used when there is undefined material available at the borrow site. If borrow sites have specific materials specified then the defined material will be used.
  Note: Before using this option, you need to have defined earthen materials in the Material and Site Improvement Manager. You can do this by selecting <New> in either of the material lists.
Click Apply. The mass haul analysis is created under the Earthworks node in the Project Explorer. In the Plan View, the analysis assigns each zone a numbered name (unrelated to the AOI name). Simple haul roads are drawn from the center of mass of each cut zone to the center of mass of an associated fill zone. For more realistic, specific haul roads, see Create and Edit Haul Roads for Mass Haul.
After the first analysis is computed, you can refine the zone to zone routes by adding haul roads (linestrings) and earthwork sites to the project. (see mass haul roads and earthwork sites).

Tip: If parameters are added or changed that could influence the site mass haul results the site mass haul analysis icon in the project explorer will change to red. Refresh the site mass haul.