Interfacing 20,000+ Sensors Monitoring Traffic Lights and Road Infrastructure

A fragmented infrastructure environment struggling to handle 20,000+ devices

The client was responsible for maintaining and modernizing critical road-infrastructure systems across multiple regions, with thousands of traffic-light controllers and sensors operating simultaneously. Their operations depended on reliable, real-time insightsbut their existing tools weren’t built for the scale, diversity, or responsiveness that modern ITS environments require.

They relied on a mixture of legacy technologies and vendor-specific devices that provided only limited visibility into what was happening on the ground. Each device class used its own protocol, its own interface, and its own way of reporting failures, creating a fragmented ecosystem that was hard to monitor and nearly impossible to streamline.

With over 20,000 devices spread across wide geographic areas, even small inefficiencies multiplied into major operational overhead. The lack of unified data access meant that failures were often detected late, maintenance teams were dispatched without full context, and infrastructure owners couldn’t get the transparent reporting they expected.

At the same time, strict SLAs created pressure from all sides. Every delayed response carried the risk of penalties, reputational damage, or financial loss. The client knew that without a modern, scalable integration layer capable of collecting and processing IoT data, they wouldn’t be able to maintain competitive service quality or meet the growing expectations of public-sector stakeholders.

A trusted technology partner was essential to navigate protocol diversity and deliver a scalable IoT architecture that the organization could adopt without risk

Building a platform capable of integrating tens of thousands of devices, each speaking different languages and operating under strict SLA conditions, was the equivalent of attempting an upgrade on a system that could never go offline. Every minute of delay had operational consequences, and every architectural choice had to account for scale, diversity, and uninterrupted service.

The sheer variety of device protocols alone posed one of the biggest risks. At this scale, even minor integration errors could destabilize the entire operation, and would cascade into missing data, false alarms, or disruptions in monitoring.

Real-time responsiveness was equally non-negotiable. Because the client’s contracts were tied to demanding SLAs, the platform needed to detect, classify, and escalate incidents without hesitation. Anything less risked triggering penalties or eroding trust with infrastructure owners.

Migration also had to happen seamlessly. Field teams were still working, infrastructure was still being monitored, and the public relied on these systems every day. The new platform had to be introduced without interrupting ongoing operations—a balance that required careful planning and zero guesswork.

On top of that, organizational readiness added another layer of complexity. New workflows, new tools, and new reporting standards meant that the client needed a solution that could be adopted quickly from day one.

A custom system for Eldro that evolves with market needs

DAC.digital was chosen because they needed a partner with deep expertise in IoT integrations, large-scale distributed systems, and someone capable of unifying thousands of heterogeneous devices, ensuring performance under strict SLAs, and delivering a platform that could evolve without interrupting ongoing operations.

The client got a comprehensive system built from scratch, taking it from initial concept to fully functional implementation. Beyond DAC.digital’s production team, they got a dedicated Product Owner to oversee the development process, including the creation of detailed requirements and specifications. The project also included interface design, where UX Specialist ensured a seamless and user-friendly experience. Recognizing the dynamic nature of the market, this project did not conclude with a single product; instead, it continues to evolve and adapt through ongoing development and enhancements.