Sorry, I intended this to go to the list.  //Jack

------- Forwarded message follows -------
From:                   "Jack" <john.cook58@verizon.net>
To:                     Courtney Hook <chook@NISA.NET>
Date sent:              Fri, 13 Dec 2002 17:54:15 -0800
Subject:                Re: Photo ticket at stop lights
Send reply to:          j56cook@pobox.com
BCC to:                 (Suppressed)
Priority:               normal

How long should the yellow be?

Since this discussion seems to revolve about the duration of the yellow
light (at least for those that understand its real purpose), does anyone
know if there's a set of guidelines available for its timing?  Traffic
engineering isn't exactly rocket science and has been around a while.

At least one listee stated, iirc, that the yellow had been purposely set
short for revenue purposes where cameras had been installed.  If so, I
wonder if it's still within the range determined by ordinary safety
factors.

Not too long ago there was a local newspaper article involving new cameras
at specific intersections in the LA (California) area.  It was stated there
was an increase in rear-end collisions but I don't remember if there was an
attempt to explain it.  But based on the driving culture around here, it's
not surprising (to me) & doesn't have to involve yellow light timing
changes at all.

//Jack

Spotted on the back of a T-shirt worn by LAPD Bomb
Squad: If you see me running, try to keep up.
------- End of forwarded message -------