Technology
Human errors are the major source of accidents. Advanced driver-assistance systems have
significantly improved road safety. Radar Traffic Signs interact with radar sensors for reliable
detection and collision avoidance particularly for harsh weather.

Radar technology is widely accepted in automotive vehicles as one of the main reliable players in safety and object detection. However, there are no active radar signals or signs for the existing radar sensors and currently all traffic signals and signs are optical. Metra Sign is developing Radar Traffic Signs that can be detected by radar sensors in different situations. This active Radar Sign is applied to a wide range of traffic signaling conditions including warning or flashing radar signals. Radar Signs can be mounted in roadsides and intersections to improve the warning systems of collision prevention by reducing the human errors.

Solution1-3

Beside automobile sensors, traffic signals and signs play an important role in road safety and traffic management. Conventional traffic signals and signs are the main safety measure for vehicles, pedestrians, and roads. Unfortunately, they can be easily obscured in harsh weather. With the growth of connected vehicle technology, V2X becomes a solution in the rapid rise of autonomous industry. However, this technology needs robust wireless communication. The highly dynamic environment, and the mobility factor appear to be challenging for real-time implementation of V2X. The security and privacy issues are also key concerns in V2X, like other wireless technologies. To overcome the drawbacks of the conventional traffic signs and V2X, Metra Sign introduces the Radar Traffic Sign which is completely secure and reliable and can work in adverse weather.

Security Privacy Real-time response Harsh weather working Reliable and less interference
Radar Traffic Sign
Yes
Yes
Yes
Yes
Yes
Conventional Traffic Signal/Sign
Yes
Yes
Yes
No
Yes
Vehicles Communication (V2X)
Moderate
Moderate
Low to high *
Yes
No
* High traffic condition and long distance may have high latency and error

This technology increases safety especially for harsh weather, makes traffic management more reliable compared to V2X technologies, integrates easily with vehicles and infrastructures.

The Radar Traffic Signs are secure and private for vehicles and can be integrated in a traffic management platform to control traffic efficiently and reduce greenhouse gas emissions.