Use these subassemblies to design various types of lanes for road assemblies.
| Image | Subassembly | Common Uses |
|---|---|---|
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CrownedLane: A crowned lane with separate subbase slope control and the ability to control the location of the subbase crown. Default Tool Palette: Lane Subassemblies |
Crowned road where subgrade slope and crown needs to be controlled independently |
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GenericPavementStructure: A simple pavement structure with user-definable point, link, and shape codes. Default Tool Palette: Lane Subassemblies |
Any pavement course |
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LaneBrokenBack: Two travel lanes with independent cross-slopes. Default Tool Palette: Lane Subassemblies |
Highways with multiple lanes in one travel direction |
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LaneSuperelevationAOR: Lane that responds to superelevation calculations, including axis of rotation pivot points. This subassembly is commonly used for general-purpose lane creation. Default Tool Palette: Lane Subassemblies |
All road lanes |
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LaneParabolic: Creates a simple parabolic shape where the crown height, width, and slope can be adjusted. Slope is calculated using a "string line" attached to left ETW and right ETW. Default Tool Palette: Lane Subassemblies |
Any road design where parabolic lane is required |
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ShapeTrapezoidal: Generic shape with user-defined geometry and codes. Default Tool Palette: Lane Subassemblies |
Irregular-shaped pavement courses and other structures |
| Image | Subassembly | Common Uses |
|---|---|---|
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LaneFromTaperedMedian1: Maintains the cross slope of the lane while extending it inward to create a left turn lane. Works in conjunction with an alignment defining the median edge. Default Tool Palette: Lane Subassemblies |
Medians with left turn lanes |
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LaneFromTaperedMedian2: Similar to LaneFromTaperedMedian1 except that it allows for two lanes outside the median. Default Tool Palette: Lane Subassemblies |
Medians with left turn lanes - multiple lanes in one travel direction |
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LaneInsideSuperLayerVaryingWidth: Lane that responds to Inside Lane superelevation value and allows independent widths for each pavement course. Up to 10 different courses can be specified. Default Tool Palette: Lane Subassemblies |
Pavement structures requiring more than four courses with varying widths |
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LaneInsideSuperMultiLayer: Similar to LaneInsideSuper except that there are additional available pavement courses. Default Tool Palette: Lane Subassemblies |
Pavement structures requiring more than four courses |
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LaneOutsideSuperLayerVaryingWidth: Lane that responds to Outside Lane superelevation value and allows independent widths for each pavement course. Up to 10 different courses can be specified. Default Tool Palette: Lane Subassemblies |
Pavement structures requiring more than four courses with varying widths |
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LaneOutsideSuperMultiLayer: Similar to LaneOutsideSuper except that there are additional available pavement courses. Default Tool Palette: Lane Subassemblies |
Pavement structures requiring more than four courses |
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LaneOutsideSuperWithWidening: Automatically widens lane in superelevated regions using a formula based on the radius of the curve and the length of the wheelbase. Default Tool Palette: Lane Subassemblies |
Highways where lane widening is required when in superelevation |