Cammin, ChristophChristophCamminMousavi, Mohammad RezaMohammad RezaMousaviTrautwein, IngoIngoTrautweinFreymann, AndreasAndreasFreymannBeutelspacher, ChristophChristophBeutelspacherNehrke, LaraLaraNehrkeLudwig, StephanStephanLudwigKirchheim, AliceAliceKirchheim2024-01-252024-01-252023https://publica.fraunhofer.de/handle/publica/45929610.1109/COINS57856.2023.101892402-s2.0-85167871016Road traffic significantly increased in the last decades. The avoidance of accidents and the continuity of traffic flow are significant challenges for road mobility. In this paper, a real-time Internet of Things (IoT) architecture is presented for these current road traffic challenges. The presented architecture takes advantage of the emerging 5G mobile technology and relies on infrastructure components so that the presented architecture can be integrated into city infrastructure to become smarter and provide benefits to citizens. A collision warning service is being implemented to warn road users of imminent collisions. The parallel traffic flow optimization will also enable the prioritization of highlighted traffic participants, such as emergency vehicles. By prioritizing pedestrians, bicycles, e-bikes and buses, for example, it will also be possible to achieve specific traffic and climate policy goals. An according smartphone app allows the resulting advantages to be used in the short term. Furthermore, additional actuators such as displays and signal transmitters will integrate all road users, regardless of the specific app usage. By using 5G, these components will also be implemented quickly, flexibly and reliably as infrastructure IoT devices. The paper concludes with a presentation of a research project in which these solutions are currently being implemented.en5GIoTTrafficSmart CitySafetyCollisionAvoidanceCloud Architectureconference paper