Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!unmvax!ncar!ames!pacbell!att!occrsh!rjd
From: rjd@occrsh.ATT.COM (Randy_Davis)
Newsgroups: sci.electronics
Subject: Re: Car Detectors for Traffic Lights
Summary: Motorcyclists would want an answer to this also...
Message-ID: <722@occrsh.ATT.COM>
Date: 31 May 89 17:23:39 GMT
References: <18811@cup.portal.com| <3185@kitty.UUCP> <456@antares.UUCP>
Reply-To: rjd@occrsh.UUCP (Randy_Davis)
Followup-To: sci.electronics
Organization: AT&T Network & Data Systems, OKC
Lines: 24

In article <456@antares.UUCP| pnelson@antares.UUCP (Phil Nelson) writes:
| I have a related question, can they be activated without the metal mass?
|The question has probably been asked before, it must be a common problem
|for urban bicyclists; how do you get the left-turn light to change? I
|havn't seen any solution though, is everyone waiting for George to do it?

  Though I would be interested in the "trigger from a distance" answer, Phil's
bicycle question is going to be of great interest to motorcyclists also,
especially those who ride small bikes.  Plus, motorcycles would already have
a power source on board....

  Though I ride a fairly large bike (650 pound with a steel frame), there are
*still* some lights that will ignore me.  This can be a real pain if there
are no cars approaching from behind to trigger the light for you, thus making
me have to run lights after sitting at them for long periods.  (Other methods
exist, like trying to remember which ones ignore you, or going through the
handy service station [which isn't legal either], etc... but this gadget would
be nice.)

  So, if anyone knows a way to fool a light into thinking there is a larger
metal mass above the sensor than there actually is, please post!!!

Randy Davis					UUCP: ...(att!)ocrjd!randy
						      ...(att!)occrsh!rjd