SignalTraffic Forums

by **notMUTCDcompliant** on Tue Apr 17, 2012 1:14 pm

Type: outline

I've only seen bi-colored as outlines.... never as full

by **Econo101** on Tue Apr 17, 2012 1:49 pm

I have seen some new bi-modal incan. look LEDs. I think they are EOI. Very sharp units

by **EagleSignalFan** on Tue Apr 17, 2012 6:45 pm

2070 wrote:

Now that is certainly unique! :crazy:

Pretty cool actually. :cool:

by **3Mfanatic** on Tue Apr 17, 2012 10:03 pm

Those are the same LEDs fitted to 3-section FYAs around here.

by **wilek209** on Fri Apr 27, 2012 10:00 am

I remember one intersection in Brockton had a bimodal fiber-optic green/yellow arrow, while the other lights at said intersection were incandescent. Of course it's long gone; when Brockton did the big LED upgrade in 2003, that fiber-optic arrow was replaced with an LED bimodal arrow from GE (they mostly used GE signals during this big upgrade.) Now THAT'S gone too; the whole intersection got an overhaul last year, and I think it now has Dialight incandescent-look signals (or maybe they are Leotek). I think they might have an LED bimodal arrow somewhere in the setup, or it might just be the "doghouse" style.
This intersection also had no signal means for pedestrians, but when the intersection was redone, 12-inch LED pedestrian signals were installed (again incandescent-look, but the white man has more of that "dotted LED" look than the hand and the vehicular signals do.)

We still have some intersections in Brockton with LED bimodal arrows. Back in 2005, they went and installed new traffic lights along the industrial section of West Chestnut St. (previously there were none), and they all had bimodal green/yellow arrows on them. IDK what company made them; I think they're Act One Communications. The second and third intersections that got traffic lights also had pedestrian signals installed (12-inch LED signals with outlined symbols), but the first didn't.
Long story short; these traffic lights REALLY helped improve that area.

by **Ampelfreund** on Fri Apr 27, 2012 10:57 am

how work that with color changing?

by **Econo101** on Fri Apr 27, 2012 8:19 pm

Just a green arrow and a yellow arrow over top of each other. in a row of LEDs, they alternate between green and yellow.

by **weatherdan882002** on Fri Apr 27, 2012 8:27 pm

Something tells me the LED model was a lot easier to make... :grin:

by **mikerm** on Fri Apr 27, 2012 8:37 pm

You can get bi-color LED's that switch between orange and green:

http://www.jameco.com/webapp/wcs/stores ... 1_34711_-1

That's what it looks like those inserts are using.

by **steven1981** on Fri Apr 27, 2012 9:03 pm

Neat set-up. Kind of reminds me of the traffic signal configurations from Japan
that use more than one green arrow for protected turn movements.

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