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name: highway-alignment-designer description: Highway alignment design skill for horizontal and vertical geometry per AASHTO standards allowed-tools:

• Read
• Write
• Glob
• Grep
• Edit
• Bash metadata: specialization: civil-engineering domain: science category: Transportation Design skill-id: CIV-SK-018 graph: domains: [domain:civil-engineering] skillAreas: [skill-area:mathematical-reasoning, skill-area:computational-geometry, skill-area:data-analysis] roles: [role:systems-integration-engineer, role:research-engineer]

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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