210 Stony ground

Geometry: area.

Definition

Stony or rocky ground which reduces rideability to about 60-80% of normal speed.
The dots should be randomly distributed but not interfere with the representation of important terrain features and objects. Point symbol (single dots) can be used to draw stony ground.

Parameters

The minimum number of dots is three (footprint 12 m × 12 m).

The maximum centre to centre distance between neighbouring dots
is 0.6 mm.

The minimum centre to centre distance between neighbouring dots
is 0.45 mm.

Density: 3-4 dots / mm².

Colour: black 60%.

Comments

Optional symbol.