Comment Comment by lojack I could understand why people would believe this.http://en.wikipedia.org/wiki/Traffic_signal_preemption#Line-...In the US at least, that is how a significant number of these systems work. It's rather unlikely they would get the right frequency to trigger it, but it's certainly possible. parent lojack 11 years ago
http://en.wikipedia.org/wiki/Traffic_signal_preemption#Line-...
In the US at least, that is how a significant number of these systems work. It's rather unlikely they would get the right frequency to trigger it, but it's certainly possible.