As a new father, the best part of my day is going out for a stroll with my daughter. My biggest enemy? Direct sun rays.
How it works
Routes come from a self-hosted Valhalla routing engine with a custom stroller profile: avoids stairs, cobblestones, steep hills, driveways, alleys, private roads, and ferries. Prefers footways, living streets, and roads with sidewalks. Walks at 4 km/h.
Building shadows come from a custom binary tile format I built with 237 million building footprints, 20 million trees, and 274 thousand cafes across Europe. Heights are enriched with real measurements from the Google Solar API. I calculate where the sun is at your chosen time, project building shadows, and score each route by how much of it stays in the shade. I also tell you which side of the street to walk on.
If the sun is behind you, the stroller hood does the work so those segments count as protected. On windy days, I also score routes for wind shelter: buildings block wind the same way they block sun. You can pick a priority: max shade, balanced, wind shelter, or smooth paths. Optionally, routes that pass within 50m of a cafe or bakery get a bonus. Round trip mode generates loop routes in four directions and picks the best one. UV index and SPF recommendations come from Open-Meteo. If it's cloudy, I skip the shade math and just give you the shortest path. Found a good route? Share it via URL.
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