a5c-ai Highway Alignment Designer Skill
Purpose
The Highway Alignment Designer Skill designs horizontal and vertical highway alignments including curves, superelevation, and sight distance per AASHTO Green Book standards.
Capabilities
- Horizontal curve design (simple, compound, reverse, spiral)
- Vertical curve design (crest, sag)
- Superelevation calculation
- Sight distance analysis
- Cross-section template generation
- AASHTO Green Book compliance checking
- Design exception documentation
- Corridor modeling support
Usage Guidelines
When to Use
- Designing new roadways
- Evaluating existing alignments
- Checking sight distances
- Developing superelevation
Prerequisites
- Design speed established
- Terrain classification known
- Design criteria selected
- Survey data available
Best Practices
- Coordinate H and V alignment
- Verify sight distances
- Consider driver expectations
- Document any exceptions
Process Integration
This skill integrates with:
- Highway Geometric Design
- Bridge Design LRFD
Configuration
highway-alignment-designer:
curve-types:
- simple
- compound
- reverse
- spiral
standards:
- AASHTO
- state-DOT
output-formats:
- xml
- landxml
- csv
Output Artifacts
- Alignment geometry
- Superelevation diagrams
- Sight distance reports
- Design summaries