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General Guide to RoadPlus - 4.0.0en
Glossary
Curve In
A portion of a clothoïde. Spiral transition from larger to smaller
radius curve (R
1
> R
2,
parameter A).
Curve Out
A portion of a clothoïde. Spiral transition from smaller to larger
radius curve (R
1
< R
2,
parameter A).
Curvilinear
A line consisting of any combination of tangents, curves and /
or spirals for the horizontal or for the vertical of tangents,
curves and / or parabolas.
Cut Slope
The surface of the project in areas of excavation with the
design surface below original ground.
Design Surface
The intended shape of the completed project.
Equation
Required for a point on the horizontal alignment where the
stationing is discontinuous. Gap equations and overlap
equations are distinguished.
Fill Slope
The surface of the project in areas of fill with the design
surface above original ground.
Finished Road Level
The level to which the final road is build to.
Forward Station Equation
See gap equation
Gap Equation
A type of station equation handling gaps in the stationing after
removing a constituing element and stationing has not been
re-computed.