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- Path: sparky!uunet!gatech!hubcap!ncrcae!ncrhub2!ncratl!mwilson
- From: mwilson@ncratl.AtlantaGA.NCR.COM (Mark Wilson)
- Newsgroups: sci.environment
- Subject: Re: Oppose Signal Synchronization Projects!
- Message-ID: <90506@ncratl.AtlantaGA.NCR.COM>
- Date: 20 Jan 93 18:22:21 GMT
- References: <1993Jan20.045150.14285@pbhye.PacBell.COM> <1993Jan20.164538.6554@pbhya.PacBell.COM>
- Organization: NCR Engineering and Manufacturing Atlanta -- Atlanta, GA
- Lines: 27
-
- In article <1993Jan20.045150.14285@pbhye.PacBell.COM> mjvande@pbhye.PacBell.COM (Mike Vandeman) writes:
- |Traffic Light Synchronization -- Where Are the Local Projects? What
- |Can We Do?
-
- | The next time you have to travel on foot or by bicycle, notice
- |whether you, or drivers, are given priority. For example, in Walnut
- |Creek, pedestrians cannot cross the street unless they push a
- |button, and then they have to wait for left-turning cars to go
- |first!
-
- MOst places that have these push buttons is not because of timing its
- because the change in the lights is triggered by a switch.
-
- The presence of a car is detected via the changes all that metal makes
- in a magnetic field. Since it is impractical for a pedestrian to run
- out in the middle of the street and lie down on a sensor, not that they
- have enough metal anyway, an alternative system of alerting the traffic
- computer has been provided.
-
- I used to ride a motorcycle, I quickly learned where these sensor controlled
- lights were. My bike did not have enough metal to trip the sensor. I either
- had to wait for a car to pull up behind me, or to run the light.
- --
- Mob rule isn't any prettier merely because the mob calls itself a government
- It ain't charity if you are using someone else's money.
- Wilson's theory of relativity: If you go back far enough, we're all related.
- Mark.Wilson@AtlantaGA.NCR.com
-