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Height profile
Checks ramps in detail: turnouts on the grade, curvature changes on a downgrade, helix grade, crests and dips.
Work in progress: This section is still a work in progress — content is being added and revised continuously.
Turnout on grade
What is checked? Does a turnout or crossing sit inside a ramp (element grade above the limit)? Why does it matter?…
Curvature change on grade
What is checked? Does the curvature change within a ramp (straight→curve, radius change, reverse curve)? Why does it…
Helix grade
What is checked? For every detected helix: the effective grade — nominal grade plus the curve-resistance surcharge…
Vertical kink
What is checked? Does the grade change sign (uphill → downhill or vice versa) without a sufficient level section in…