Cellular Maze: Cellular Network-Aware Routing System

Cellular Maze is a machine-learning-powered navigation platform that recommends routes based on predicted cellular signal quality alongside estimated time of arrival (ETA) and distance. Conventional routing engines such as Google Maps and Waze optimize almost exclusively for travel time, which leaves users exposed to dropped calls, disconnected ride-hailing sessions, offline fleet trackers, failed emergency SOS messages, and stalled navigation updates whenever a route passes through a dead zone. The proposed system retrieves up to seven road-snapped alternatives from the TomTom Routing API, samples each path at 500 m intervals, and predicts signal strength, call-drop probability, and handoff risk at every point using ResidualSignalNet, a multi-task PyTorch model with about 560K parameters. Predictions are cross-validated with a COST-231 Hata and Ericsson 9999 propagation ensemble, combined with ETA through a user-controlled speed-versus-signal preference, and personalized over time using Thompson Sampling. Results are presented on a Mapbox GL JS map with signal heatmaps, real cell tower overlays, and predictive dead zone warnings, enabling users to stay connected without giving up control over travel time.