Navigo-Kenya/navigo

Navigo helps riders find nearby matatu/bus stages, preview walking routes, and navigate with real-time, low-latency guidance. The app prioritizes map smoothness, battery awareness, and useful micro-interactions # Navigo **Real-time public-transport navigation for Nairobi's matatu and bus network.** --- --- ## Screenshots | Search & Plan | Route Results | Live Navigation | |:---:|:---:|:---:| | | | | | **Map & Stops** | **Kwame AI** | **Community** | | | | | > Add screenshots to `assets/screenshots/`, recommended: iPhone 15 Pro, 393 × 852 pt, light + dark variants. --- ## Overview Navigo is the passenger-facing mobile app for Nairobi's informal matatu/bus network, a full journey-planning and live navigation experience built specifically for the city's fill-and-go transit reality. It covers the complete commute loop: search → plan → navigate → contribute, with an AI assistant (Kwame), gamified crowdsourcing, and a projection-based navigation engine that handles the fill-and-go reality of Nairobi transit better than schedule-only approaches. --- ## Features ### Journey Planning - **Multi-itinerary planner**, up to 5 route alternatives ranked by fastest / cheapest / least walking / fewest transfers - **Kwame AI assistant**, Gemini-powered conversational trip planner with voice input (VAD auto-stop), Google Cloud TTS response, and persistent session memory - **In-trip copilot**, Kwame answers live trip questions ("how many stops left?") using real-time navigation context - **Safety scoring**, night-time itineraries scored by walk distance after dark + nearby hazard reports; safer route flagged - **Route preview fly-through**, animated camera sweep along the full polyline before starting ### Navigation Engine - **Projection-based** (not proximity-based), projects GPS onto route polyline for accurate progress, ETA, and step detection; handles loops and U-turns correctly - **EMA smoothing**, location (α=0.3), heading (α=0.7), speed (α=0.5) with circular-arithmetic heading interpolation - **Off-route detection**, 3 consecutive strikes > 45 m from line; recovers automatically - **Dead reckoning**, advances position estimate during GPS gaps ( …