Smart traffic lights cause jams when fed spoofed data

A team of five researchers from the University of Michigan have found that the DOT’s I-SIG (Intelligent Traffic Signal System) is way too easy to spoof with bad data.

In fact, the researchers said in a paper recently published on Internet Society that the current signal control algorithm has been designed and implemented to be “highly vulnerable” to data spoofing attacks from even one, single, solitary attack vehicle.

By constructing practical exploits and evaluating them in real-world intersection settings, the researchers found that data-spoofing attacks can even cause a blocking effect to jam an entire approach to an intersection.

I-SIG, the CV-based traffic control system they were attacking was developed in the DOT’s Dynamic Mobility Applications (DMA) research program and takes in real-time vehicle trajectory data to best control traffic lights.