Simulative Untersuchung und Bewertung Vehicle-to-Infrastructure basierter Anfahrstrategien an Lichtsignalanlagen

Kurzfassung

The Institute of Transportation Systems (TS) of the German Aerospace Center (DLR) deals with the development and evaluation of driver assistance systems. The DLR is a member of the Communication Consortium which plays a leading role in the development of wireless communication standards. Initial demonstrations show the use of this technology for future driver assistance systems. The objective of these systems is to increase the safety and the efficiency of the traffic. There are different steps in the process of developing assistance systems. Starting with studies concerning the assessment of a new system prototypes have to be evaluated. This thesis deals with the simulation of the start performance of 50 vehicles in front of a traffic light. The simulation involves an intersection controlled by traffic lights and is performed with the SUMO open source network simulator. The objective of this thesis is to analyse three different start performance scenarios. The first scenario maps the current start performance, while the others deal with driver assistance systems. One of them supports the driver by showing the remaining time of the current and upcoming light phases and by helping the driver with the acceleration process. The other system automatically assumes longitudinal guidance. The simulations dealing with the two driver assistance systems require a penetration rate with vehicle-to-x technology of 100%. It can be shown that with the variation of the start performance a decrease of travel time by 25% up to 85% is possible. The number of green phases can be reduced from 14 to 4. The fuel consumption and the emissions can also be reduced by between 21% and 94%. In addition, two important values (the duration of the green phase and the acceleration) which influence the results of the simulations substantially have been identified.