HALI-Berlin: Emergency vehicle preemption with Galileo PRS

Abstract

The aim of the research project HALI-Berlin is to demonstrate the use of Galileo PRS (PRS = Public Regulated Service) for determining the position of emergency vehicles under real-life conditions in a complex urban environment. Based on this position determination, a preemption is given to emergency vehicles at traffic lights to cross safely and to maintain higher speeds towards their destination. In addition, HALI-Berlin significantly increases road safety for all road users and minimises the negative impact of emergency mission trips on the general traffic flow. Several fire brigade and police vehicles were equipped to receive Galileo PRS encrypted signals. Eight traffic lights in the Berlin-Moabit district were also enhanced with additional components. A HALI server in the background coordinates the triggering of the traffic lights along the emergency vehicles' routes. This paper presents a project overview, the applied HALI system components and the findings achieved so far.