[PRCo] Re: 42/38 on Smithfield Yellow-Green Light

[Dwight Long]

Fred

How do color blind folks get driving licenses?  Even in Del. a color 
recognition test must be passed to obtain one.

In East Palestine, Ohio, in the early 50s there was a two-aspect traffic 
light which had the green aspect replaced by a moving green neon hand (as in 
hand of a clock) which revolved toward zero to indicate how much time was 
left before the red aspect would appear.  Neat idea, but I never saw it 
anywhere else, and it sure is not there now!

Dwight

----- Original Message ----- 
From: "Fred Schneider" <fwschneider at comcast.net>
To: <pittsburgh-railways at dementix.org>
Sent: Thursday, October 27, 2011 2:30 PM
Subject: [PRCo] Re: 42/38 on Smithfield Yellow-Green Light


> It ended when the feds wanted consistency everywhere.   They never managed 
> to get it everywhere ... Florida and Texas mount traffic lights 
> horizontally to confuse the color blind.
>
> At the same time New York City scrapped their lights that simply went from 
> green to red.   Marietta, Ohio used to have green and red lights that 
> flashed red over green three times as a warning before the green went out. 
> They also disappeared about the same time.   There were a lot of odd 
> variants at one time.  Some cities had lights where the green was 
> sequential .... started at the bottom and progressed up a ladder until it 
> turned red.   Seems to me Reading, PA had a version like that back in the 
> 1930s or 1940s but it was not still around in the 1970s.
>
>
>
> On Oct 27, 2011, at 2:20 PM, Barry, Matthew R wrote:
>
>> No, Bob.  That practice ended in Pittsburgh - I  think in the late 70s.
>>
>> -----Original Message-----
>> From: pittsburgh-railways-bounce at lists.dementix.org 
>> [mailto:pittsburgh-railways-bounce at lists.dementix.org] On Behalf Of Bob 
>> Rathke
>> Sent: Thursday, October 27, 2011 2:18 PM
>> To: pittsburgh-railways at dementix.org
>> Subject: [PRCo] Re: 42/38 on Smithfield Yellow-Green Light
>>
>>
>> Don't the traffic lights in Pittsburgh still have the overlapping 
>> green/yellow indication?
>>
>>
>>
>> I recall that in the 1960's Pittsburgh was one of the few (maybe the 
>> only) city in the U.S. with overlapping traffic signals.  Also in that 
>> era, Canton, Ohio had simple red & green traffic signals - no yellow.
>>
>>
>>
>> Bob
>>
>>
>>
>> ----- Original Message -----
>>
>>
>> From: "Matthew R Barry" <mrb190 at pitt.edu>
>> To: pittsburgh-railways at dementix.org
>> Sent: Thursday, October 27, 2011 12:21:58 PM
>> Subject: [PRCo] 42/38 on Smithfield  Yellow-Green Light
>>
>> Hi Folks,
>> Take a look at this of the 42/38 on Smithfield: 
>> http://www.railpictures.net/viewphoto.php?id=275722&nseq=45
>>
>> Remember when the traffic lights used to give us "green" THEN   "green 
>> and yellow together," then "yellow," and finally "red?"    The photo 
>> illustrates the former green/yellow signal.
>>
>> Matt
>>
>>
>>
>>
>>
>>
>
>
>