Traffic Light Gadgets

"davidj92" <davidj92REMOVE DeleteThis @sigecom.net> wrote in message
news:f5SdnVZDYZQHE1XbnZ2dnUVZ_tOtnZ2d@sigecom.net...
> Zyp wrote:
> snip
> > The problem is an old one. Some road inductor(s) sensors pick up
> > bikes and some don't. The iron mass is what make the inductance
> > change.
>
> You're correct, the loop carries a frequency, mostly determined by the
loops
> geometrics. The detector will tune to the loop, if loop geometrics are
> within certain perimeters, and a frequency is set up in the loop. When a
> mass large enough to change the magnetic field around the loop wires to
> change enough to cause a shift in the frequency, the dectector will put in
a
> call to the controller.
>
>
> I don't think a magnet [unless is contains a considerable
> > amount of mass] helps much.
>
> In theory, if the mass and the magnetic field of the magnet are enough to
> influence the magnetic field of the loop then it could work. I agree with
> your assessment, I don't think a magnet by itself would work unless it
were
> very strong but it could cut down on the size of the mass needed for
> detection.
>
> I've heard from some riders who use
> > their side stand. The flip it out over the inductor loop in the
> > street and claim it helps.
>
> This could help also as it puts metal closer to the loop wires. Another
> thing that can help is if you can see the cut line in the street where the
> loop is, it usually has a tar filling creating a black line, try to stop
on
> top of the line just on the inside of the loop. The motorcycle's mass will
> have the best chance of causing detection there. The least likely place is
> in the middle of the loop.
>
> I don't know. I know that if I come
> > across a traffic light that doesn't respond in a resonable amount of
> > time [the law states 2 minutes] then I can presume the signal is
> > broke and go about my business.
>
> Most people do that here as well although I don't know what the law is.
> Sometimes the detector's sensitivity is set so high a loop won't pick up a
> bike. Or it can be set so low it will pick up a bicycle, which can cause
> detection from vehicles in adjacent lanes. Back when they were ticketing
> here the traffic engineer and I used to argue about some intersections.
The
> lanes were so narrow he didn't want the loop to pick up a motorcycle as it
> would detect in adjacent lanes. My feeling was I don't care, if it takes
the
> light going red in all directions so I can make a turn so be it. That
> feeling was shared by most riders here and I think that voice caused the
> police to stop ticketing when it was obvious the detection hadn't worked.
If
> you're stopped on a loop while cross-traffic is flowing and your lane
> doesn't get serviced when the light changes then it should be safe to
assume
> you weren't detected.
> Dave
>
Last weekend after leaving J&P cycle the group decided to fill up just down
the road a bit at BP Amoco, exit 54. The traffic light was not responding to
me rolling my tire on and off of the crack that gave indication of the loop
so I stomped on it. Then the light gave the hand for don't walk for the on
coming traffic, then,,,,,the fu*king thing stopped giving the don't walk and
stayed green for the on coming traffic. Of course we ran the light when it
was clear. We stopped at the new, new to us, bar called Scooters. I think it
was there last year too but I never stopped. Nice place but for no busier
than they were it took to long for us to get our drinks. I watched our
waitress walk around seeming to do nothing. My wife told me to calm down I
was ready to call her over and ask what the hold up was. Then when she got
us our drinks she said they had to brew the tea so all was ok then. But she
could have told us before we all was getting a tad pissy that was the hold
up.
--



Carl

I started out with nothing and
I just about have that paid for.

Remove one 9 to reply



--
Posted via a free Usenet account from http://www.teranews.com

My take on a light that doesn't change when I'm on my motorcycle is
this:

1. I'm riding a legal motor vehicle.

2. I expect lights to recongnize legal motor vehicles.

3. If the light sensor DOESN'T recognize me, that intersection light
is defective.

4. In the USA (at least) if you arrive at an intersection with
non-functioning traffic light, drivers are to treat it as a 4-way
stop.

5. I stop... I look, and when it's clear, I go.


I've never been pulled over or ticketed, but I can't see any flaw in
my logic.

James, Suzuki Intruder 1500, Port Orchard, Washington, USA, Earth