4traffic SET GmbH

4traffic SET GmbH is a mobility and environment technology company dedicated to building sustainable, green, and truly smart cities. We design, deliver, and support end-to-end solutions that unify road traffic, pedestrian movement, and environmental monitoring into one coherent, city-scale platform. Our modular #ONE-Box sits at the heart of this approach: a compact roadside unit that consolidates signal control, sensor fusion, and secure communications to orchestrate intersections, crossings, and corridors while continuously capturing air-quality, noise, and weather data.

With an open, interoperable architecture, 4traffic integrates existing signals, detectors, and city systems to protect investments and accelerate deployment. Operators gain real-time situational awareness, coordinated control strategies, and actionable sustainability insights—helping reduce congestion, shorten travel and wait times, prioritize vulnerable road users, and lower emissions. From pilot to citywide rollout, we provide consulting, engineering, deployment, and lifecycle support, ensuring dependable operations and measurable outcomes.

What we deliver

• #ONE-Box platform: Unified mobility, pedestrian, and environmental management in a single field-proven unit.

• Pedestrian-first safety: Smart crossings, adaptive phasing, and priority for people on foot, bikes, and micromobility.

• Sustainability insights: Continuous air-quality, noise, and meteorological data to guide low-emission strategies.

• Open integration: Standards-based interfaces to connect signals, sensors, SCADA, C-ITS/V2X, and city platforms.

• Operational excellence: Remote supervision, incident response, reporting, and performance benchmarking.

4traffic SET GmbH partners with municipalities, operators, and infrastructure providers to turn policy into practice—delivering safer streets, smoother journeys, and cleaner air with solutions that are practical today and scalable for tomorrow.