Just found this explanation on how signal loop detection works for signalling traffic lights to change.
http://www.cyclistview.com/signaldetection/index.htm
I'm sure that the light in Sydney would work the same way.
how to trip traffic lights
As far as I can tell, the loops work on detecting some deflection of a magnetic field, but the vast majority of bike rims (presentation quotes up to 10x better deflection than frame) and frames today are non-ferrous (no iron), which would make any attempt of deflection useless?
- mikesbytes
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I understand that it doesn't matter which metal the rims are made from, ie Alloy is fine. CF would be a problem.
Yes, I have always ridden that way, along and right over the axis of the inlaid cable. Works pretty well. ![Very Happy :D](./images/smilies/icon_biggrin.gif)
![Very Happy :D](./images/smilies/icon_biggrin.gif)
always works for me too.
As I often say, I am a motorists worst nightmare... A cyclist who knows how to trip the lights...
James
As I often say, I am a motorists worst nightmare... A cyclist who knows how to trip the lights...
James
And then jump the red and leave a ghost for the green light?As I often say, I am a motorists worst nightmare... A cyclist who knows how to trip the lights...
![Wink :wink:](./images/smilies/icon_wink.gif)
I wondered about the time frame too. And how does one prove the inability to trigger? Ever been tested in the courts?didn't know about that rule Geoff. Is there a time limit for how long you have to wait?
I know when I ride early on Sunday solo that there is a set of lights that I can't always trigger. I wait about 30-40 seconds, and then proceed with caution.
It is usually pre 6am on a Sunday, so it is pretty easy to find a gap, even on a busy road like King Street.
James
It is usually pre 6am on a Sunday, so it is pretty easy to find a gap, even on a busy road like King Street.
James
- mikesbytes
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- Joined: 13 Nov 2006, 13:48
- Location: Tempe
- Contact:
Toff and I applied the principal tonight with complete success ![Cool 8)](./images/smilies/icon_cool.gif)
![Cool 8)](./images/smilies/icon_cool.gif)
Ride faster if you want to get warm!I can clearly remember one freezing cold Saturday where the Slowies bunch stopped 20m short of an intersection in a patch of sun and made Llewellyn ride up to the line and trigger the lights.
![Laughing :lol:](./images/smilies/icon_lol.gif)
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