network-accessibility-analysis
Always invoke for access to facilities or opportunities by walking, driving, cycling, or public transport, even for a conceptual question with no routing terms or data yet. Covers hospital and service access, transit/GTFS, routes, isochrones, OD matrices, closest facility, 2SFCA, walkability, coverage, and equity. Invoke when Euclidean buffers proxy for network access. Use movement-trajectory for observed tracks and MCDA for suitability without network costs.
Install
With your agent
Install OMGSkills skill "muend/geoai-skills:skills/network-accessibility-analysis" into this agent's normal skills directory: call the OMGSkills MCP get_install_plan tool for your agent and run the script it returns (it installs only the pinned commit and verifies SKILL.md), and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/muend/geoai-skills /tmp/geoai-skills && ln -s /tmp/geoai-skills/skills/network-accessibility-analysis ~/.claude/skills/network-accessibility-analysisFrom README
Network & Accessibility Analysis Purpose: replace as-the-crow-flies guesswork with network-true travel costs, at the right scale and with honest assumptions about speeds and modes. First decision on every task: Euclidean distance is only acceptable as a declared approximation — flag it whenever you see it standing in for access. Tool selection by scale | Scale | Tool | |---|---| | Neighborhood-city, research flexibility | OSMnx + NetworkX | | City-region, many-to-many OD (>10⁴×10⁴) | r5py (multimodal + transit w/ GTFS) or pandana (contraction-hierarchy speed) | | Production routing service | Valhalla / OSRM / OpenRouteService API | | Proprietary stacks | ArcGIS Network Analyst (script it headlessly) | NetworkX chokes on metro-scale many-to-many — don't loop shortestpath over thousands of origins; switch tools instead. Graph construction (OSMnx) networktype matters: pedestrian analysis on a drive graph misses paths, stairs, plazas; driving on all uses footpaths. Match mode.
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