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Red Light Sensor

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Red Light Sensor

Old 04-02-09, 10:00 PM
  #26  
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If you wait there long enough, I'm sure someone will be along to help you through the intersection. Bring snacks.
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Old 04-02-09, 11:11 PM
  #27  
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A left turn trigger?!?!?! Sheesh. I want one!
This city sucks!!!
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Old 04-03-09, 07:17 AM
  #28  
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If you don't tell your local highway engineers that it's not working, they won't put it right.

If you do, they might not, but then again, they might.

Route 1 doesn't work at all, route 2 can.

What's to lose?
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Old 04-03-09, 07:55 AM
  #29  
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Originally Posted by bkrownd
Which is what you're supposed to do at a malfunctioning light in any kind of vehicle.
Exactly. I'm not sure why this always inspires so much controversy and cries of "you're just not doing it right" and "oh but I never run red lights." This shouldn't be a complicated issue.
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Old 04-03-09, 08:47 PM
  #30  
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You know... if they stopped with all the hi-tech switches and just let the lights use timers, life would be great. Cars would travel slower, no doubt.... and we wouldn't need to either run red lights or try to figure out which side of the rectangle really works.
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Old 04-03-09, 11:36 PM
  #31  
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My office overlooks an intersection with inductive loops. Last fall, I watched a technician tune the sensitivity of the loops using a bicycle wheel.
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Old 04-04-09, 11:08 AM
  #32  
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Originally Posted by gerv
I read somewhere that you should cross the frontmost (north) side of the square. Are you saying I would have more success crossing either the west or east side of the square??? Your "Reader's Digest" article seems to indicate this...


If you follow the blue lines in the above picture with your bike wheel your chances of tripping the light are much higher. The wheel has to be almost directly over the wires because the magnetic field is weak. If you ride over the red lines, you are only breaking the magnetic field momentarily and the electronics just sees that as noise.

Cars trip the signal because their entire frame covers the whole magnetic field and so sensitivity isn't an issue.
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