Published: March 30, 2016 | Santa Clara, CA
Nissan, Savari Inc, and UC Berkeley’s Partners for Advanced Transportation Technology (PATH) collaborated on a real-world V2X testbed spanning 4.63 square miles with three public intersections in Sunnyvale,CA. PATH deployed Savari StreetWAVE™ road-side-units (RSUs) and coordinated with the City of Sunnyvale and Nissan on the project, which started in August 2015 and is continuing to provide data today.
This V2X testbed demonstrates how data can be reliably exchanged between moving vehicles and fixed wireless infrastructure using the DSRC (Dedicated Short-Range Communications)-5.8 GHz band. The data that’s collected is analyzed for improving real-time traffic flow to planning transportation infrastructure investments. Furthermore, as Nissan continues to advance technologies for autonomous driving systems, the availability of V2X communication can further enhance the capabilities of autonomous cars.
Since its rollout, the City of Sunnyvale pilot is examining the role of V2X communications and its potential benefits on easing traffic congestion, and enhancing fuel economy and public safety. For example, Sunnyvale’s Transportation Division is leveraging the data to enhance the operation of current traffic light intersections and readying them for fully autonomous vehicles.
V2X technology integrates with the city’s traffic controllers, exchanging data between vehicles and traffic signals and between traffic signals and vehicles using radio sensors. Nissan participated in the project with interest in further evaluating DSRC technology-a medium-range wireless communication channel dedicated to cars to provide communications from vehicle to another vehicle or to roadside infrastructure-as a potential V2X system that can be deployed today.
The U.S. Government recently laid out its vision for building a 21st century transportation system that includes a 10-year, nearly $4 billion investment to accelerate the development and adoption of safe vehicle automation through real-world projects.