A traffic speed enforcement system for high speed environment based on Dedicated Short-Range Communications (DSRC) technology

The IEEE 1609 and 802.11p protocol family (also known as WAVE/DSRC or DSRC network) developed by IEEE are key wireless technologies for time-critical safety message broadcast in Vehicular Ad Hoc Networks (VANETs). The WAVE/DSRC network removes the layer-2 association procedure and thus greatly differs from traditional WiFi technologies. With this capability, critical information can be sent within a very short period, making it suitable for realizing Vehicle-to-Vehicle (V2V) safety applications and Roadside-to-Vehicle (R2V) Intelligent Transportation System (ITS) applications. In a recent project, the WAVE/DSRC technology has been studied for the use of speed enforcement system. This paper presents a case study of integrating the state-of-the-art WAVE/DSRC technology into a new-type of speed enforcement system called the Augmented Speed Enforcement (aSE) system. The design, the architecture, and the details of field tests in Los Banos, California, will be discussed. In addition, experimental results regarding the DSRC and 3G radio performance in the field will be analyzed in this paper.