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Traffic Light Control For The Masses

uniformed1 writes "Eliminating red lights along the routes of their vehicles can give emergency response teams the few extra critical minutes that can save lives and property. A front page article in today's Detroit News details the emerging problem with a device that is now being made available to the public -- a traffic light changer. Originally intended only for emergency vehicles, the $300 MIRT (mobile infrared transmitter) emits an infrared beam that signals traffic signals to turn green and gives the vehicle the right-of-way. It is only a matter of time before self-centered drivers start using the devices widely to skirt traffic congestion, which is creating fears that chaos will ensue." Maybe if everyone had these, it would lead to smarter intersections.

22 of 824 comments (clear)

  1. No Encryption keys? by HermanAB · · Score: 5, Insightful

    What idiots make these things???

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    Oh well, what the hell...
    1. Re:No Encryption keys? by shird · · Score: 4, Insightful

      that would require a challenge-response type system. Thus, it would have to be a transmitter and reciever with processor etc, rather than just blindly transmitting all the time.

      A lot more difficult to develop, a lot less fault tolerant.

      I guess it could just digitally sign todays date with a secret key and transmit that or something. However, eventually the key would be leaked or reverse engineered. Basically, if you are going to give the 'key' (the little box which does the transmitting) to anyone, then eventually that key will be figured out. No amount of encryption can avoid that. (Although tamperproof smart card type devices are a good start).

      --
      I.O.U One Sig.
    2. Re:No Encryption keys? by wfberg · · Score: 3, Insightful

      I guess it could just digitally sign todays date with a secret key and transmit that or something.

      You've got the right idea!

      However, eventually the key would be leaked or reverse engineered.

      The fun thing about keys is, you can have as many keys as you have mirt boxes - one goes missing, you remove the key from the receivers.

      --
      SCO employee? Check out the bounty
    3. Re:No Encryption keys? by Perrin-GoldenEyes · · Score: 4, Insightful

      Do you network all the boxes and just broadcast a remove code? And what do you do when some l33t hax0r starts sending his, unofficial, broadcasts on that network?

      Then the emergency vehicles run the same way we do in places where we don't have those systems. We run red lights (legally) with lights and sirens on, but we do it carefully. It might take a little bit longer to get where they're going, but it's not a catastrophic failure.

      BTW, if you're wondering about my use of "we", I'm a Maryland EMT.

      --
      -Perrin.
      Now I want you to go in that bag and find my lightsaber. It's the one that says bad mother-fscker on it.
    4. Re:No Encryption keys? by Dolly_Llama · · Score: 4, Insightful

      Isn't the simplest method to simply flash the red-light camera at whoever uses the device and send big fat nasty tickets to those caught doing it fraudulently?

      --

      Somewhere, something incredible is waiting to be known. -- Carl Sagan

  2. Illegal? by marshac · · Score: 3, Insightful

    Why are these devices not illegal? Seems to me that the intersection should take a picture of the vehicle using the device... if there aren't flashing lights, send a ticket in the mail.

    Once people know that they will be fined, they will stop using it. If you can't deal with red lights, then don't drive.... it's part of the agreement that we all agree to live by when driving (aka "the law"). These rules are there to make driving safer for everyone.

    1. Re:Illegal? by nacturation · · Score: 5, Insightful

      Why are these devices not illegal? Seems to me that the intersection should take a picture of the vehicle using the device... if there aren't flashing lights, send a ticket in the mail.

      The only problem there is how do you know which driver among the 20 approaching the intersection has the device? Sure, if you see someone with their arm out the window pointing a remote at the traffic light it's a no-brainer, but an IR transmitter peeking out of the front grill or behind some trinket on the dash would be impossible to make out.

      Just make it some enourmous fine... $25000 per offense or some such figure when the device is used for a non-emergency purpose. That way, the devices themselves aren't illegal (though I agree that they probably should be) but the uses are. You could, conceivably, drive your wife to the hospital when she's about to give birth, but you couldn't use it just because you're late for work.

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  3. Ambulance drivers don't go full speed by JohnQPublic · · Score: 5, Insightful

    The only time an ambulance driver goes full-speed through an intersection with the siren screaming and cars breaking left and right is in the movies. In real life, they slow down and approach the intersection with all the care appropriate to one who's about to violate the traffic pattern. Because, after all, it doesn't help the dying guy in the back if the ambulance gets in an accident on the way to the ER.

    1. Re:Ambulance drivers don't go full speed by Rorschach1 · · Score: 3, Insightful

      Exactly. I know that at least around here, the ambulance company policy REQUIRES that all ambulances come to a complete stop at all red lights.

      You know what's REALLY irritating, though? When you pull up to a red light with the lights and siren going, and some idiot sees you stop and decides it's their turn to go.

      Yes, I'm a nerd AND an EMT...

  4. Re:"Maybe if everyone had these, it would lead..." by Theatetus · · Score: 4, Insightful

    I think the idea was that mass dueling transmitters might be smarter than weight sensors or cameras. I see this, however, as a perfect case study for the Tragedy of the Commons.

    --
    All's true that is mistrusted
  5. Re:Change the Behavior by Yottabyte84 · · Score: 3, Insightful

    You drive on the left side of the road, around them.

  6. Re:Change the Behavior by Izago909 · · Score: 5, Insightful

    The lights in the direction of the emergency vehicle turn green so people can move out and away instead of blocking the intersection. I've seen people at regular 'dumb' intersections sit in front of a fire truck and block it because he thought he would get in trouble for running a red to let them through. Also, I'm not sure if it's lke this everywhere, but around here if something comes through such an intersection the light goes from green to red with no yellow warning at the exact same time the other direction gets the green. That sould defiately cause some chaos if ignorant drivers decide to get selfish.

    One thing people always forget is that speeding and runing reds rarely gets you there faster. People who dodge and weave through rush hour highway traffic are a whole 2 or 3 cars in front of me when I get to the off ramp. I've learned the timing of lights around my office and home so now I can actually get there faster by driving just few miles under the limit. Usually it's the impatient people that create traffic in the first place. The more that people obey speed limits the better the timing of intersections gets.

  7. One legit use I can think of by finkployd · · Score: 3, Insightful

    Motorcycles. Generally I cannot trigger a light change to save my life, so I sit there like an idiot waiting for a car to come up behind me and hopefully get close enough to trigger it for me. Especially annoying at intersections where one must wait for a green arrow to turn left. Still though, I do not believe that is enough of a problem to warrant the general public getting these.

    The idea of non emergency people having these is insane. And you know it is going to be the H2 driving, cell phone yapping, news paper reading, oblivious to the world around them group that will absolutly HAVE to have these. I mean my god, I have to get to my office to start on today's fancy bookeeping and intern bonking, RIGHT THIS MINUTE! Damn all these plebes and their "right of way" nonsense, can't they see I'm more important?

    Damn I'm bitter today.

    Finkployd

  8. Re:Rarely used by thebigmacd · · Score: 4, Insightful
  9. Lame by xpccx · · Score: 4, Insightful
    "We'll probably try to avoid (selling to the public) if it may cause problems in the future," said Pregler, whose company is named Vision Aerodynamics.
    So what are they going to do, wait until ambulances or fire trucks can't get to their destinations before making a determined effort not to sell to the public? It's a little late at that point, no?
  10. detection and prevention by pair-a-noyd · · Score: 5, Insightful

    1. Do what the military does, strobe the lights in a morse code fashion. Assign a seperate code to each city vehicle that needs to use the system. Any vehicle not strobing a proper code gets no joy.

    2. retrofit traffic light camera's to snap pictures of the traffic when the system is activated. Remove the infrared filter from the camera and the camera will easily and plainly show the vehicle that is attempting to open the intersection. You get a picture of the perp and his license plate, plus the light will be plainly visible to the camera. Perfect evidence for a court case.

    If the system is coded and someone attempts to copy the codes then they can prosecute them for hacking into a governemnt computer system.
    After all, the traffic lights are computer controlled, they should not be accessible to the public and if you hacked the system via the Internet it would be your nuts on the chopping block.

  11. Make "Red Light" for all directions.. by Dr_Marvin_Monroe · · Score: 4, Insightful

    That's how I've heard this system operates (at least in Seattle)...strobe light gives "all-stop" at the signal. From where I heard this, it was done deliberately to avoid this type of stunt with the strobe light on civilian vehicles. This is also the safest option too, as emergency vehicles are trained to run red lights (after slowing and checking) and go around stopped vehicles. "All Red" also gives the emergency vehicles the clearance to use the opposing lanes and any other clear space in the intersection etc, coupled with the fact that at any intersection, you ONLY want the emergency vehicles moving...no others.

    Any system that creates "green" for the person with the strobe is, in my opinion, an inherently dangerous system. It encourages people to try this kind of stuff and makes people think that the ambulance or fire-engine behind them "won't mind if I go through too". The more moving vehicles there are, even if they're with the flow of the emergency traffic, the more dangerous.

    I can't imagine this system staying like it is for too long.

    How about tracking the emergency vehicles through GPS, then having the central traffic computers switch the lights around the emergency vehicle (far ahead) in such a way as to clear the path 2 blocks away and keep all opposing traffic off the intended path. For instance, lanes turning away from the path would be allowed to turn green so the vehicles could clear the area, lanes crossing would be halted 1 or 2 blocks away, and lights behind the emergency vehicle would stay red for some reasonable period of time to keep the lawyers a reasonable distance from the ambulances...most people wouldn't even see the emergency vehicles, as they would be sitting at a red light 1 or 2 blocks away, or simply shunted away from the path, and the ambulance/fire-truck driver would not even have to contend with stopped or moving traffic.

    This isn't too much to put on one of those little PLC traffic computers, and it would be a lot better than "strobe light gets the green" solution that these people thought up.

  12. Re:Here's a link to a place that makes them... by Lord+Kano · · Score: 5, Insightful

    I welcome every complete moron that buy's these to use them... just like the police radar jammers.

    As with any device that is in a legal grey area, judicious use is the key. Think of these things like stinkbombs in high school. If you are the ONLY one in the room where you use it, it will be more than obvious who is responsible. If you do use it in an auditorium with 500 other students around you, it is much harder to find out who is the culprit.

    If you are in a fair sized group of cars, you are pretty safe when using a radar jammer or device to change the traffic signal. Sure it may be illegal, but when the effort required to catch you makes in impractical to do so, the police don't even make the effort. How often does the office football pool get busted?

    LK

    --
    "Hi. This is my friend, Jack Shit, and you don't know him." - Lord Kano
  13. Re:Plans? by zcat_NZ · · Score: 5, Insightful

    PROBLEM; Light goes green.

    Design the device to make the lights go RED in all directions. Emergency vehicles can safely drive around the waiting traffic on the 'wrong' side of the road, because there's no oncoming traffic. There's no 'subtle' way for a non-emergency vehicle to use this type of device.

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    455fe10422ca29c4933f95052b792ab2
  14. Except that... by phorm · · Score: 4, Insightful

    Emergency vehicles are still required to stop on a Red, then proceed. Stopping at each red light before proceeding shaves off seconds, and in the case of life-threatening injuring those few seconds could be crucial.

    I'd say that it should be very, very illegal for normal people to have these devices, perhaps you could give certain traffic lights a camera that snaps the license of whomever flashed it the "green" signal, therefore determining whom is making unauthorized use of the system

  15. What's Wrong with Just Jumping the Lights? by gilgongo · · Score: 3, Insightful

    Why have lights you can override at all? Why don't the emergency services just jump the lights like they do in the UK?

    If I come up to a red light, I'm stopping. If I hear an ambulance behind me, I expect it to jump the lights! The poeple on the green lane hear the ambulance and stop/slow down too.

    Works fine over here. Is there something special about US traffic?

    --
    "And the meaning of words; when they cease to function; when will it start worrying you?"
  16. You're forgetting one detail... by CrystalFalcon · · Score: 3, Insightful

    "All Red" also gives the emergency vehicles the clearance to use the opposing lanes and any other clear space in the intersection etc, coupled with the fact that at any intersection, you ONLY want the emergency vehicles moving...no others.

    Actually, you DO want other vehicles moving. Specifically, the ones in front of the emergency vehicle. There's not always room to pull over or give way within your lane, and giving the vehicles immediately in front of you a red light will... well... stop you too.