Digital Terrain Model — Road Application
Define the finished purpose, reference levels, underlying material condition and the evidence required by the receiving operation. Geometry alone does not establish structural or agronomic performance.
This reference assembles relevant extracts from the guide library. It is general project planning, not a local project report, verified specification or translated technical publication.
Digital Terrain Models
A digital terrain model represents a surface from measured or designed data. It can guide cut-and-fill calculations, but poor boundaries and missing breaklines can create a misleading model.
Before moving material
Confirm data source, coordinate system and model extent.
Receiving operation and checks
Issue a controlled design model for the intended workflow. Compare selected model elevations with known field observations.
A model image is not proof of survey accuracy or a certified design.
Read the complete Digital Terrain Models guideRoad Corrugations
Road corrugations concern both the wearing material and traffic interaction. Dragging loose peaks into hollows can improve appearance temporarily while leaving the cause unchanged.
Before moving material
Assess aggregate condition, drainage and the depth of the corrugated layer.
Receiving operation and checks
Compact and manage traffic as required by the road-maintenance plan. Check that the profile and edge drainage are restored.
Persistent corrugation may need material or maintenance-method changes.
Read the complete Road Corrugations guideSurveying for Land Grading
Surveying for grading establishes the relationship between the site and the intended surface. Machine guidance can assist work, but the survey determines the reference against which results are checked.
Before moving material
Define the survey area, control and required deliverables.
Receiving operation and checks
Use the survey to prepare the design and later acceptance checks. Retain the datum, units and control-point descriptions.
A topographic survey and a legal boundary survey serve different purposes.
Read the complete Surveying for Land Grading guideRecord the job inputs
Use this checklist to turn the scenario into a specific brief. Retain the design revision and agree who accepts each completed layer.
Checklist ticks apply only while this page is open. Include the completed brief in your project records.
Prepare a project enquiryContinue through the network
Surface and verification · Applications and rental · Equipment and technology
Return to this reference group