VITAL - Delay based Traffic Control, Test-Field Hefei

Abstract

The aim of the research project VITAL (Vehicle-Actuated Intelligent Traffic Signal Control) was to implement and to test two novel signal control methods in the field. The two new approaches are the delay-based control and the cooperative control which are based on vehicle-to-infrastructure (V2X) communication data. The two test intersections used for validation are located in the German cities of Halle (Saale) and Braunschweig. Another study in China aims at monitoring and reducing traffic impact on air quality at intersections with use of the object detecting and tracking technique and the traffic signal control optimization from the VITAL Project. A field campaign is executed at a selected intersection in Hefei, China and the collected immission data is used for examining the reasonability of the simulated emission productions. The simulative approach shows that the proposed method greatly increases the efficiency of the traffic operation and, at the same time, reduces the amount of emission production. A field test of the proposed method is under preparation for verifying the simulation results.