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Vangrove.tech
Mobile Applications6 Weeks Delivery · 2024

IMOTS Transit

Live public bus tracking and digital contactless transit ticketing.

React NativeGoogle Maps APINode.jsPublic Transit

Client / Product

IMOTS Transit

Delivery Scope

Mobile Applications

Platform

Web & Cloud

SLA / Status

Live in Production

Quantifiable Production Impact

Measured Business & Technical ROI

94%

ETA Accuracy

Machine learning traffic-adjusted arrival estimations

45,000+

Daily Active Users

Trusted by city commuters every single day

1M+

Paper Tickets Saved

Significant reduction in disposable paper ticket printing

60 FPS

Map Render Speed

Smooth Google Maps vector rendering on mobile

imots-transit.prod.internal // telemetry-hub
LATENCY: < 40ms

Core Architecture Topology

High-Throughput Sub-Second Engine

Smart public transit mobile app providing real-time bus tracking, route optimization, and digital ticketing. Engineered with resilient fallback states, strict database-level security policies, and sub-second rendering across global edge nodes.

React NativeGoogle Maps APINode.jsPostGISRedis

// Live Telemetry Logs

✓ [EDGE_ROUTER] Handled 10,000+ RPS without memory spill

✓ [AUTH_GATEWAY] JWT verification: < 2.4ms

✓ [DB_REPLICATION] Primary-Replica lag: 0.08ms

⚡ Status: 100% Operational (99.9% Uptime SLA)

The Problem & Bottlenecks

Operational Friction & Legacy Hurdles

Commuters faced unpredictable bus arrival times and crowded ticket counter queues.

The Engineering Solution

Architectural Innovation & Clean Delivery

Architected a city-scale transit application reading GPS telemetry from bus fleets with live map tracking and UPI QR ticketing.

Module Breakdown

Core Modules & Capabilities Shipped

Every capability was architected as an isolated, independently testable component designed for maximum fault tolerance.

Module 01

Live bus GPS location tracking with ETA countdowns

Module 02

Multi-modal journey route planner (bus, metro, walking)

Module 03

Contactless UPI digital ticket generation with QR validation

Module 04

Crowd-density reporting allowing passengers to see seat availability

System Architecture

Technical Blueprint

Mobile ClientReact Native & Mapbox/Google Maps

Optimized mobile client rendering hundreds of live transit markers.

Telemetry EngineNode.js, Kafka, Redis

High-throughput message pipeline processing GPS pings every 2 seconds.

DatabasePostgreSQL & PostGIS

Spatial geospatial database computing shortest transit routes.

Full Production Technology Stack

React NativeGoogle Maps APINode.jsPostGISRedis