Traffic TechnologyModern technology protects highly vulnerable road users
On the TAVF, vehicle manufacturers, technology companies, and research institutions can test ITS applications, safety and assistance systems, as well as automated and connected driving functions in a real traffic environment on public roads. For this purpose, the test track provides installations for the use of infrastructure-to-vehicle and vehicle-to-infrastructure communication (V2X).
Real-time data for optimized traffic flow
VITRONIC is testing its systems at a danger point. This concerns an intersection representing a highly congested traffic junction (K94) in the Hamburg city area. It is located only about two kilometers northwest of the central train station and near the CCH congress center. A video camera was installed on an existing light pole to record the flow of traffic coming from Schröderstiftstraße in the direction of the K94 junction (Rentzelstraße / Schröderstiftstraße / An der Verbindungsbahn). A second camera was fitted to a pillar located directly at the K94 junction.
Both cameras record the incoming traffic from the direction of Schröderstiftstraße. The real-time data collected in this way is available for further processing by the traffic lights control processes at the K94 junction. The aim is to optimize the traffic light control so that waiting and travel times are reduced for all road users. For example, green phases could be extended at peak times so that an increased number of cyclists and pedestrians can cross the road safely.
Radar measurement from VITRONIC for hazardous situations
Raising awareness for hazardous situations
To increase the traffic safety of VRUs in the area of the K94 junction, Vitronic has also installed two additional sensors, including a radar. In the future, so-called CPMs (Collective Perception Messages) could be sent to those vehicles that are involved in potentially dangerous situations. Furthermore, position data of all traffic objects detected by the sensors can be continuously sent via CPM. Currently, the communication between the Road Side Unit (RSU) and the On Board Unit (OBU) is being tested and improved. While the OBU is located in the vehicle, the RSU is installed on the infrastructure side, e.g. on a lighting pole.
There is ongoing optimization of the procedures implemented on the test track and validation of the data. The presentation of the respective results is planned for the ITS World Congress.
