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The Challenge: Lack of Trust in City Data
Modern cities rely on public transportation as critical infrastructure. But today, the data that powers these systems is often fragmented, inaccurate, or unverifiable. This creates major challenges:
Municipalities lack accurate insights into passenger flows, payment systems, and CO₂ emissions—making it hard to optimize routes, or advance sustainability goals.
Operators struggle with unreliable information from electronic ticketing alone, leaving gaps in occupancy tracking and fleet management.
Authorities and insurers need precise, time-stamped, and tamper-proof data to respond effectively to incidents.
Citizens depend on safe, efficient, and sustainable mobility—but trust erodes when systems can’t deliver transparency.
In a complex, multi-stakeholder network, everyone depends on the same data—but without a trusted chain of information, decisions are delayed, inefficiencies grow, and opportunities for smarter urban mobility are lost.
The Solution: A Trusted Data Chain for Public Transportation
To overcome these challenges, Bus2, the University of Brasília (UnB), and Staex have joined forces to create a Trusted Data Chain — a system that delivers verifiable, real-time, and tamper-proof information for all stakeholders in urban mobility.
Here’s how it works:
🎯 Accurate Passenger Counting
IoT sensors connected to microcontrollers (like Raspberry Pi) provide real-time occupancy data, ensuring municipalities can track Tarifa Zero programs and operators know exactly how full each vehicle is.
🌍 Carbon Emission Tracking
Sensors measure CO₂ emissions directly from buses, giving cities reliable data to support sustainability and ESG initiatives — and even explore future carbon credit programs.
🔒 Secure Networking
With Staex technology, even small devices can create a secure VPN from the edge to the cloud, transmitting data safely without relying on centralized infrastructure.
⛓ Immutable Storage
All data is anchored on blockchain, making it transparent, auditable, and impossible to tamper with. This ensures every stakeholder — from municipalities and operators to insurers and authorities — can trust the information they receive.
By combining IoT, secure networking, and blockchain, this partnership transforms fragmented data into a trusted chain of intelligence that improves safety, efficiency, and sustainability across Latin American cities.
Partners
This project brings together expertise from industry and academia to create a trusted foundation for smart cities.
Real-world mobility operator
A major data integrator in Latin America, Bus2 unifies, processes, and integrates mobility data from fleet management, electronic ticketing, telemetry, sensors, and more—turning fragmented inputs into actionable intelligence.
Academic and technical deployment leader
The University of Brasília is one of Brazil’s leading academic institutions. Through its Blockchain Center (UnBChain) and Internet of Things Laboratory (UIoT), UnB combines research and applied innovation to design and deploy next-generation urban mobility solutions, from prototypes to real-world pilots.
Trusted data infrastructure
Staex is a decentralized software that ensures secure connectivity for devices and machines. Developed originally at Deutsche Telekom’s R&D in 2021, Staex allows enterprises to build resilient mobility networks in minutes across operations, partners, and customers. By providing near real-time access to trusted, verifiable data, Staex unlocks AI-driven insights and Web3 monetization.
LIVE Showcase in Brasília
The IoT Lab at the University of Brasília, led by Professor Cláudia Abbas, has already built and tested a working prototype of this solution in a controlled environment. Using sensors connected to microcontrollers, the lab has successfully tracked passenger numbers and CO₂ emissions with high accuracy.
The next step:
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🚍 Deploy the system on real buses in Brasília.
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📊 Capture live data on passengers, emissions, and fleet performance.
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🔒 Store this data securely using Staex networking and blockchain infrastructure.
👉 In October 2025, Staex, Bus2, and UnB will host a live demonstration at the University of Brasília. Partners, municipalities, and industry leaders are invited to see the solution in action and contribute to shaping its next phase.
👉 We welcome you to join us in Brasília and experience the future of Trusted Data for cities!
To participate in the live demonstration or ask questions, reach out to us using this form below!
Join the Live Demo / Ask a Question
Let’s Build Smarter Cities Together
A Trusted Data Chain is key to building safer, more sustainable, and more efficient cities. Together, Staex, Bus2, and UnB are creating the infrastructure for that future.