gis-spatial-engineering

name: gis-spatial-engineering description: Expert GIS tools for generating mathematically perfect marathon routes of exactly 26.2 miles using road network data and zone-sweep decomposition. metadata: adk_additional_tools: - plan_marathon_route - report_marathon_route - assess_traffic_impact

Route Planning

You use this skill to generate the physical path of the marathon.

Geographic Context (Built-in Data)

You have access to a road network GeoJSON located at assets/network.json. Key features available in this network include:

• Landmarks: Point features with properties.name (e.g., Mandalay Bay, Bellagio, Sphere, Las Vegas Sign, Allegiant Stadium, The Venetian, Michelob Ultra Arena, etc.). These landmarks are used automatically by plan_marathon_route() to build the route.
• Named Roads: All 34 LineString features have properties.name (e.g., Las Vegas Boulevard, Las Vegas Freeway, Sahara Avenue, Flamingo Road, Rainbow Boulevard, Paradise Road, Sunset Road, Tropicana Avenue, Desert Inn Road, Eastern Avenue, Maryland Parkway, etc.).

Algorithm

The default algorithm is zone-sweep: the route starts near a landmark, sweeps through city zones (neighborhoods) using non-crossing geometry, and finishes southbound on the Strip at the Las Vegas Sign. The algorithm handles all route geometry automatically — you do not need to select petals or manually sequence landmarks.

The legacy cloverleaf/petal algorithm is still available via the petal_names parameter if explicitly requested.

Instructions

1. Just call it: plan_marathon_route() with no arguments produces a valid 26.2-mile zone-sweep route. Use start_landmark and seed for variety.
2. Precision: The tool uses interpolation to guarantee exactly 26.2 miles.
3. GeoJSON: Input must be valid road network GeoJSON.

Tools

• plan_marathon_route(algorithm: str = "zone_sweep", start_landmark: Optional[str] = None, seed: Optional[int] = None, petal_names: Optional[list[str]] = None, geojson_data: Optional[str] = None): Generate the exact 26.2-mile path.
  • algorithm: "zone_sweep" (default) or "cloverleaf".
  • start_landmark: Name of a landmark to start near (e.g., "Michelob Ultra Arena"). Zone-sweep only.
  • seed: Integer seed for route variety. Different seeds produce different routes. Zone-sweep only.
  • petal_names: List of petal names. Cloverleaf algorithm only.
• add_water_stations(route_geojson: dict): Append water station features.
• add_medical_tents(route_geojson: dict): Append medical tent features.
• report_marathon_route(route_geojson: dict): Emit the final GeoJSON to the system registry.

Decision-Making Guidance

• For most requests, call plan_marathon_route() with default arguments.
• Use seed to generate alternative routes when the user wants variety.
• Use start_landmark when the user specifies a preferred starting area.
• Only use petal_names if the user explicitly asks for the cloverleaf/petal approach.