With the VITAL procedures, the German Aerospace Center (DLR) has developed two novel control procedures for traffic light systems (LSA) based on V2X communication. The procedures have already been successfully implemented and validated at real test intersections in suburban and rural areas. As a scientific user, DLR is now also testing the control systems in urban areas on the TAVF. Both procedures were successfully implemented in October 2020 at junction K94 (Rentzelstraße / Schröderstiftstraße / An der Verbindungsbahn). The VITAL procedures are expected to result in reduced waiting and travel times for road users, optimised traffic flow and lower pollutant emissions. The VITAL control procedures communicate with the vehicles via V2I and thus adapt the circuit. The infrastructure at the TAVF also already meets the necessary requirements, but the number of V2I-capable vehicles is still too small. For this reason, the incoming traffic is detected alternatively with already installed thermographic cameras and from this the information required for the control system is determined. In the coming weeks, the results of the first test will be evaluated and the procedures will be further adapted to the traffic planning framework conditions of the city of Hamburg and the requirements of the various road users. Ideally, the results should result in a better traffic flow and at the same time meet the needs of all road users - including pedestrians and cyclists. The aim is to further develop the VITAL procedures at the Hamburg test intersection step by step until the ITS World Congress in Hamburg in October 2021, including the use of real V2I communication. The results are to be presented there within the framework of the TAVF.
Read the entire press release (external link): DLR Transport Research
Image rights: DLR