Architect's Guide

Sep 17, 2026 · Fundamentals

How GeoHash Enables Efficient Nearby Passenger Search in Ride-Hailing Apps

This article explains the GeoHash algorithm, detailing how it converts latitude/longitude into binary strings via recursive bisection, interleaves bits, applies base32 encoding, and uses prefix matching to efficiently find nearby passengers in ride-hailing apps, while noting edge-case limitations.