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>What? Such things exist? Are these "traffic signal preemption transmitter" devices used in e.g. ambulances? Yes, they're used at some intersections to forcibl
by freehunter 10y ago
>What? Such things exist? Are these "traffic signal preemption transmitter" devices used in e.g. ambulances?
Yes, they're used at some intersections to forcibly change the light to green. And they're basic IR transmitters so they're ridiculously easy to make.
- mschuster91 10y agoAh. I remember long ago reading an article where someone... pranked public transport with changing the direction of a railroad tramway switch - basically, right before the train would lock the switch by passing over a detector, the prankster would switch the switch, and the train had to reverse in order to switch the switch to the correct direction.
- zeroer 10y agoThat's the kind of "prank" that's likely to kill people. I am at a loss as to how this is a prank. I understand different people have different senses of humor, but is there a context I'm missing in which it's funny?