Taxi Manager: A Cross-Platform Mobile Application for Role-Based Taxi Fleet and Booking Management

Small and medium taxi fleet operators in India continue to rely on manual, paper-based methods for booking management, driver coordination, and payment tracking despite the rapid proliferation of smartphones across the country. This paper presents "Taxi Manager," a cross-platform mobile application built using Expo and React Native with TypeScript, providing role-based fleet management for two user types: Owners and Drivers. The system integrates Firebase as its complete backend, utilizing Firestore for real-time data synchronization, phone-number OTP-based authentication, Firebase Storage for document management, and Cloud Functions for push notifications and automated report aggregation. A dual-layer Role-Based Access Control (RBAC) architecture enforces data security at both the client routing layer and the Firestore server-side rules layer. A bilingual English and Hindi interface ensures accessibility for users across different literacy levels. The application is actively deployed at GM Taxi Service, Behror, Rajasthan, validating its real-world applicability. Experimental evaluation across 15 test cases demonstrates a 100% pass rate. The system reduces booking creation time from 5–10 minutes to under one second and delivers push notifications to drivers within 2–3 seconds of booking assignment, demonstrating the transformative potential of modern cross-platform mobile development and serverless cloud infrastructure in the transportation management domain.