Elevation & Structures

Pin a height at one point on the road and the rest re-derives around it — you don’t need to set every piece by hand. Use the Elevation tool (G) and drag a corner up or down, or select an elevated piece to read its height and grade in Properties. Use the Elevation tool’s on-canvas controls to change heights; the Properties summary is a readout. Ground-level roads omit that summary until they have elevation to report.

How steep is too steep

The inspector reports the steepest grade on the selected piece — not the average — as a plain word (Level, Gentle, Moderate, Steep, or Won’t climb) next to the number, banded against your circuit’s RC scale. See Scale & Units for why the limit is different at different scales. A grade past the comfortable range is flagged as you go rather than blocked, so you can still build it if you want to.

Terrain contours in the plan

Touge circuits show generated terrain contours in Plan view so you can see the mountain shape around elevated roads. Choose Draw → View → Terrain contours above the canvas. These contours describe generated scenery, not a surveyed site, and appear only on screen. They are omitted from printed plans and tile templates.

When a raised run needs support

Once a piece is high enough to need something holding it up, Circuit Builder builds that support for you, and what it builds depends on the circuit type:

• On Touge circuits, a raised run becomes ground the road is cut into — packed out from the floor, and bored through wherever the circuit needs to pass underneath it. This is the tunnel you’ll see on a mountain-pass circuit that loops back over itself.
• On Competition and City circuits, a raised run becomes a deck on concrete columns, with open floor between them and a wall closing off each end — the elevated bridge section you can drive, or walk, underneath.

Where something passes underneath a raised piece, the inspector also shows the actual clearance against what a car at your scale needs — so you can tell at a glance whether a crossing is comfortably clear or just barely making it.