Civil 3D ACP flashcards
Civil 3D ACP · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Prospector tree
- The palette tab that lists all Civil 3D objects in the drawing and in data shortcuts, letting you edit properties, definitions, and styles from one place.
- Drawing Settings
- A dialog that sets drawing units, zone, scale, and the default layers and styles for each object type, so new objects are created consistently.
- Description key set
- A collection of keys that match raw point descriptions and assign a full description, point style, label style, and layer to each matching point during creation or import.
- Figure prefix database
- A table that maps field-coded linework names to layers and flags them as breaklines, so imported figures land correctly and can build surfaces.
- Data shortcut
- A reference to an object such as a surface or alignment that lives in another drawing, letting many drawings share geometry without duplicating it.
- Reference object
- A read-only copy of a source object in the current drawing; edits are made in the source drawing and propagate when the reference is synchronized.
- Style versus properties
- A style controls how an object is displayed, while properties hold its actual data; editing a style never changes elevations or geometry.
- TIN surface
- A triangulated irregular network built from points, breaklines, and boundaries; its triangles define elevations used for contours, volumes, and slope analysis.
- Breakline types
- Standard breaklines force triangle edges, proximity breaklines connect points within a set distance, and wall breaklines create a vertical face between two breaklines.
- Surface boundary types
- Outer boundaries trim data outside, show boundaries hide outside display, hide boundaries hide inside display, and data clip boundaries exclude data from the build itself.
- TIN volume surface
- A separate surface whose elevation at each point equals the difference between a base and comparison surface, used for cut and fill reporting.
- Point group
- A dynamic query that collects points by description, name, elevation, or explicit inclusion, so newly created matching points join automatically.
- Feature line site
- A named collection that makes feature lines interact; lines in the same site create crossings and can be used for grading, while different sites stay independent.
- Grading criteria
- A rule set of distance and slope or elevation projections that drives a grading object from a feature line until it meets a target surface or elevation.
- Fixed versus floating entities
- Fixed alignment sub-entities hold all their own constraints, floating entities depend on one neighbor, and free entities depend on both neighbors for their geometry.
- Surface profile
- A profile sampled dynamically from a surface along an alignment, updating when the surface or alignment changes; it cannot be edited directly.
- Layout profile
- A profile drawn from tangents and vertical curves that you control directly; it is used for design grades rather than existing ground.
- K value formula
- For a vertical curve, K equals length divided by the algebraic difference in grades, so length equals K times that grade difference.
- Station equation
- A rule that shifts stationing along an alignment, such as a back station equal to a different ahead station, without altering the alignment geometry.
- Profile view band set
- A group of bands placed under or above a profile view that reports stations, elevations, grades, and surface data at each station.
- Superelevation axis
- The pivot line about which a roadway rotates when superelevation is applied, chosen as centerline, inside edge, or outside edge.
- Corridor baseline
- The alignment and profile pair that a corridor follows; stations along the baseline position each assembly insertion.
- Corridor region
- A station range along a baseline that applies one assembly; a corridor may have several regions with different assemblies and targets.
- Subassembly targets
- References to surfaces, alignments, profiles, or offsets that a subassembly resolves at each station; unresolved targets produce default geometry.
- Corridor surface
- A surface built from selected corridor links and feature lines; it is dynamic to the corridor and must be added explicitly to the surface list.
- Sample line group
- A set of stations cut through a corridor or surface at an interval plus added stations, used to generate sections and quantity takeoffs.
- Daylight subassembly
- The outer subassembly that projects from the corridor edge until it meets a target surface, forming the cut or fill slope to existing ground.
- Parts list
- A catalog subset assigned to a pipe network that defines available pipe and structure sizes, materials, shapes, and the rules applied to them.
- Pipe part rules
- Checks such as minimum cover, maximum slope, and drop across a structure that are applied when parts are created or rules are explicitly run.
- Interference check
- A command that compares a pipe network against another network or 3D solid and reports locations where the clearance is less than a specified value.
- Average end area formula
- A volume method for sections where volume equals the distance between sections times the average of their two end areas.
- QTO report
- A quantity takeoff that reads material and pay item lists to compute volumes and areas; it is a snapshot that must be regenerated after edits.