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Leotek Green Arrow
This shows a setup with a screw-in adapter that makes a LED conversion easy, by not having to remove the reflector and bulb socket. Also good for returning to incandescent in an emergency when there are no LEDs on hand.
Keywords: Traffic_Lights

Leotek Green Arrow

This shows a setup with a screw-in adapter that makes a LED conversion easy, by not having to remove the reflector and bulb socket. Also good for returning to incandescent in an emergency when there are no LEDs on hand.

FYA.gif CIMG9217.JPG CIMG3827.JPG sig.png CIMG5734.JPG
File information
Filename:CIMG3827.JPG
Album name:rlshieldjr / Traffic Signals
Keywords:Traffic_Lights
Filesize:66 KiB
Date added:May 02, 2011
Dimensions:480 x 398 pixels
Displayed:3476 times
Color Space:sRGB
Contrast:0
DateTime Original:2011:04:27 13:44:05
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/125 sec
FNumber:f/5.6
Flash:No Flash
Focal length:6.2 mm
ISO:64
Light Source:Unknown: 0
Make:Casio Computer Co.,ltd.
Max Aperture:f/2.8
Model:EX-Z9
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=6376
Favorites:Add to Favorites

Comment 1 to 20 of 20
Page: 1

gailgrove   [May 02, 2011 at 08:13 PM]
Interesting.
basilicon89   [May 03, 2011 at 02:03 AM]
Is that a glass reflector
streetlight98   [May 05, 2011 at 09:52 PM]
Well, you still need to carry lenses for them.
LilCinnamon   [May 06, 2011 at 04:04 AM]
So the lens from the incandescent is still in there and the LED module is just lenseless?
Form109   [May 06, 2011 at 06:34 AM]
the original Lense is most likely removed...the face of the LED module is the lense now...errrr sort of.
joe_347V   [May 06, 2011 at 07:25 AM]
Do they make LED modules that don't require removing the lens?
I've seen ones that screw in for ped signals but not for vehicle signals.
rlshieldjr   [May 06, 2011 at 06:53 PM]
@basilicon89, Yes is glass, starting to lose it's "mirroring"
@streetlight98, I generally carry enough spare LEDs on my truck, but I do have each a R-Y-G lens and an arrow mask just in case.
@LilCinnamon, The incandescent lens is removed prior to installing a LED.
basilicon89   [May 06, 2011 at 07:28 PM]
@ Joe- Yes. They did in the mid to late 1990s. In the 1990s several manufacturers (Electro Tech and McCain notably) produced a Red LED fixture that utilized the existing lens. The setup proved to significantly reduce brilliance. I have a picture of a McCain version somewhere. I'll have to look.
gailgrove   [May 06, 2011 at 09:42 PM]
How much does a single LED module cost?
streetlight98   [May 06, 2011 at 10:43 PM]
Hmm. I imagine the good ones aren't that cheap. Definetly not as cheap as incandescent. I'd guess $35-50 dollars
joe_347V   [May 06, 2011 at 11:35 PM]
@Nick Thanks

@Niall, don't know how much the LEDs sell for new but I have bought used ones for $15 before.
basilicon89   [May 07, 2011 at 06:08 AM]
LED modules bought new are very expensive. I brand new countdown is $200. I believe Green modules are $200, Reds are about $150. Don't know yellows off hand.

If you know anything about this industry its that nothing bought from the factory is cheap.

For fun, here are some prices for stuff bought from distributors:

Start with something little... pedestrian crossing buttons---cheap?

Polara Bulldog (The pressure sensitive buttons that beep): $150 EACH

Polara Navigator (the ones that say "Wait" and "Walk sign is on"): $400 EACH w./ voice unit

Continuing on...
Video Detection Cameras range from $800 to $1,200 EACH

Cabinets with all the equipment (video processors, conflict monitors, terminal facilities, etc) are roughly $25,000

A controller such as my EPAC M50 bought new is $5,000

Signal heads themselves range from $300-400 for a single 3-light signal.

A programmable signal such as a 3M, or a McCain, or Intelight is about $1,200 EACH

Add the poles, detectors, all the heads, LEDs, controller and all the wire. Plus interconnection equipment if needed.

Most municipalities invest $250,000 to run an intersection. It is nice to have the "collector market"
LilCinnamon   [May 07, 2011 at 06:39 AM]
One traffic signal setup on the road just with one pole for one direction of the road, the whole setup for that direction would be like.. 7 or 8 thousand dollars. With four.. Quadruple that. O.O
joe_347V   [May 07, 2011 at 07:07 AM]
@Nick I knew that traffic lights were expensive but not that expensive Shocked
gailgrove   [May 07, 2011 at 01:22 PM]
Yeah those prices are really ridiculous, I mean sure the're a lot of components and the material has to meet certain standards but still ...
Here for an signal replacement the government allocates $100, 000 - $150, 000. @ Ian I got about $32, 000 for the set up you mentioned, I think you forgot the control cabinet, pole, mast arm and street light not to mention labour Shocked
streetlight98   [May 07, 2011 at 02:05 PM]
Well, not every signal pole has a streetlight. I know they don't here.
basilicon89   [May 07, 2011 at 04:27 PM]
@ LilCinnamon. Thats about right for the actual pole, cable and lights. But factor in all the cabinet components. Controllers are $5000, Conflict Monitors are $2000, The Load Switches are about $200 each (X12 in a large intersection) Flash Transfer Relays are $50 each (X6 in a large intersection) Then you have things specific for the intersections like Ped Isolators for the buttons, Video Detection Processors for the cameras, Opticom Units for the Emergency Vehicle Detectors, The backpanel itself. I was quoted on some power supplies from Naztec recently...$500 per supply. BIUs are about $500 and cabinets that have them usually use two. Add interconnection equipment, hardware for all the signals, lines to a closed loop master, either via fiber optics or radio wireless. Some new cabinets are outfitted with a radar traffic counting system made by "Wavetronix" those are about 3 grand to install. Then yes labor and all that. You're easily hitting $150,000-$200,000 for a fairly large intersection.
LilCinnamon   [May 07, 2011 at 06:41 PM]
I wonder how much the city pays for the thousands of traffic setups they put all around a city... That probably is over a billion dollars.
SeanB~1   [May 07, 2011 at 08:37 PM]
Remember the city does the build gradually, and spreads the cost out over time as the budget allows. Here there is a big issue with maintenance, as there are a lot of intersections that have regular cable theft.
rlshieldjr   [Feb 15, 2013 at 07:04 PM]
I have been replacing several TS LEDs lately, they seem to fail in "spurts". We can go for months, not replacing a single LED, then a whole lot need replacing. The summer heat usually causes more to fail.

Comment 1 to 20 of 20
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