[PRCo] Re: Photo Trivia

[Derrick Brashear]

On Wed, Nov 10, 2010 at 3:37 AM, Joshua Dunfield <joshuad at cs.cmu.edu> wrote:
> On 10 November 2010 01:00, Herb Brannon <hrbran at cavtel.net> wrote:
>> In Photo 3, the thing I though someone might miss is that the  traffic
>> signal facing the crosswalk at Ft Pitt Blvd is lit with the Amber Over
>> Green. A truly Pittsburgh thing...........taken away by our "friends" in the
>> US Department of Transportation. You also noted the placement of the street,
>> which changed after the parkway was built through this area.
>
> What did it mean?  I'm guessing either a reminder to yield to
> pedestrians when turning, or preparation for the light turning yellow.

The latter, see rule 16:
http://www.gribblenation.com/swparoads/features/pghdrvrules.html

> Somerville, MA had red over yellow up until at least ten years ago.
> Must have confused the heck out of any Europeans visiting; it didn't
> have the same meaning (light is about to turn green) it does in
> Europe.



-- 
Derrick