Topcon Paver System 5 - Crown Contour Explained; Lead Crown Definition; Negative Crown Explained; Positive Crown Definition

Glossary
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G-3
Crown
The transverse contour of a finished mat.
The contour of the screed plate.
The transition line between 2 different slopes (i.e. between
lanes or between lanes and shoulders).
Lead Crown
The contour or profile from side to side of the leading edge
of the screed.
Negative Crown
Contour which is higher at the edges than at the center of a
mat.
Positive Crown
Contour which is higher at the center than at the edges of a
mat.
Tail (Road) Crown
The contour of the trailing edge of the screed.
Cut-off Shoe
A detachable plate used to reduce the paving width of a screed.
D
Density
Compactness of paving material.
E
Edger Plate
A vertical plate at each end of the screed used to confine the
head of material.