Ground:

Ground contour drawing tool.

Bench:

Draw bench tool (flat topped and vertical sided object

Ground Cover/

Asphalt:

Packed Quarry Dust:

Exposed Earth:

Fine Stones Packed:

Small Chips:

Sand Silt Packed:

Roadside Dirt and Rocks:

Rough Grass:

Forest 2m:

Forest 5 m:

Forest 10 m:

Forest 20 m:

Rough Grass:

Ground cover tools from the most acoustically hard (reflective) to the most acoustically soft (absorptive) - Environmental model only.  Disabled in CoRTN model

Ground Cover Roads/

Hard

Soft

Ground cover tools from the most acoustically hard (reflective) to the most acoustically soft (absorptive) - CoRTN noise model only.  Disabled in Environmental model.

Barrier Relative:

Tool to draw noise barriers having a height relative to local ground levels.

Barrier Absolute:

Tool to draw noise barriers having an absolute height (i.e. independent of local ground levels).

Reflective Base:

CoRTN model only.  Makes barriers or terrain reflective.

Noise Source/

Point:

Line:

Road:

Rail:

Tool to draw the various noise sources.

Noise Receiver/

Point:

Box:

Point Offset

Tools to draw receptor locations