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Old February 15th, 2011, 03:22 PM   #1
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LED lighting

I need some help with research. I checked these forums for existing information but I couldnt find any information about LED street lighting on highways and Autobahns. Maybe you can help me if you have correct information if somewhere exists >currently< LED street lighting. I usually find informations about "incoming" projects and pictures of smaller roads and towns lighted with LED street lighting. Or it is some stretch of road in China with lots of lanes but no cars and pictures like that.

If you have picture, even better, post it

I also have heard that Philips put lighting on Netherland highway but currently says "more information on that soon" so it seems to me it is another "incoming" project but nothing that actually is in operation.

Thanks in forward!
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Old February 15th, 2011, 03:27 PM   #2
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From the Netherlands' motorway thread.
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Originally Posted by ChrisZwolle View Post
The A44 motorway is the first in the world to have LED lighting, according to Rijkswaterstaat.

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Old February 15th, 2011, 03:38 PM   #3
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A bit different but this is from Norway (E6):

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Old February 15th, 2011, 04:42 PM   #4
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Led lights are currently being tested on the N63 road in Wallonia (Belgium).
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Old February 15th, 2011, 07:26 PM   #5
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Are you asking about street lights, traffic lights or LED studs used for pavement marking?

Where I am (Kamloops, BC, Canada), LEDs are used predominantly in traffic signals. At this point it's just the red and turn arrow (which starts off green, then goes amber) on combined signals (Red, yellow, green and turn arrow). On separate turn signals, just the arrow is LED and maybe the red light. On all others, it's just the red light that is LED.

The only other place LEDs are used, is on a stretch of Mission Flats Road where a concrete kerb was installed several years ago. It has amber LED studs on it. A new street that was completed in late 2009 has what appears to be LED streetlights, but I think regular, high intensity bulbs are being used instead.

The biggest barrier to LEDs being used here is A: Cost. They are extremely expensive to install, though they rapidly pay for themselves in terms of much lower operational costs. B: City Council is nothing but Communist f**kwads.
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Old February 15th, 2011, 07:37 PM   #6
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While LEDs look sexy, I don't like the brightness and the color of the light they emit.
We have some newly installed on few crossings, now even on bridge over Ljubljanica on A1.

Also it is quite wrong thinking, that LEDs need much less energy than conventional lamps. That is maybe true if comparing to old mercury lamps, but new high pressure sodium lamps use more or less the same amount of energy for given light (lumen/watt), are much cheaper and their light is much more pleasant to the eye.

LED markers (white or red, also other colors) are quite commons sight in European tunnels for about 10, maybe 15 years.

Last edited by keber; February 15th, 2011 at 11:18 PM.
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Old February 15th, 2011, 10:10 PM   #7
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There are several recently-installed areas of LED street lighting here in Appleton, WI.

Mike
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Old February 16th, 2011, 12:00 AM   #8
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I'll take the LEDs Keber. I prefer the extra brightness, as it makes it easier to see people. In fact, the City of Kamloops has installed white street lights at some intersections now and, in the City of Surrey (BC, Canada), White street lights have been used along a stretch of 99A, near the King George SkyTrain station.
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Old February 16th, 2011, 02:13 AM   #9
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On a side note, there was a study that said that people are feeling much safer in streets with white light. Because you can see better and sharper than with the traditional orange lights. But I agree that white leds looks unpleasant, cold and 'formal'
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Old February 16th, 2011, 02:38 AM   #10
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Varna, Bulgaria





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Old February 16th, 2011, 05:20 AM   #11
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LED in Brazil




Last edited by xrtn2; February 16th, 2011 at 05:43 AM.
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Old February 16th, 2011, 06:36 AM   #12
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Am definitely liking the white LED lighting.
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Old February 16th, 2011, 07:22 AM   #13
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My university has a lot of LED lights for the sidewalks and a few sections of the streets have LED streetlights. Most of the orange sodium lights are gone, but there are still a few around.
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Old February 16th, 2011, 09:52 AM   #14
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Thanks to all! But keep the posts coming

I am asking mainly for street lamps, since as I understand current LED technology level, it is really the BEST technology for low power markers but high price and really at best equal levels of lm/watt as HPS (high pressure sodium) that are currently on the market (not in laboratory) make LED street lights still mostly just prestige choice and not economical one. IMHO
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Old February 16th, 2011, 12:39 PM   #15
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I personally prefer the white light of LED lamps because it doesn't distort colours they way HPS lights do - just look at the colour of grass in the photo from ChrisZwolle's post. For me that distortion is quite tiring, especially because I don't see that well in the dark(genetics, what can you do...)
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Old February 16th, 2011, 12:46 PM   #16
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As far as I know, there are no physical reasons for the LED lights to be white... they could also mimic the sodium lights' colour.
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Old February 16th, 2011, 02:32 PM   #17
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Quote:
Originally Posted by g.spinoza View Post
As far as I know, there are no physical reasons for the LED lights to be white... they could also mimic the sodium lights' colour.
There is a cost reason. Warm light LEDs, which are more pleasant to the eye (their light is similar to incandescent bulbs) are for now much more expensive for the same lumen/watt ratio.
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Old February 17th, 2011, 12:27 PM   #18
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There have been studies that showed that people feel safer with white lighting like LEDs provide than the orange sodium lights. (Plus the sodium lights are just ugly)
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Old February 17th, 2011, 01:03 PM   #19
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Quote:
Originally Posted by Rebasepoiss View Post
From the Netherlands' motorway thread.
I think it's about time to start changing every lights in EU highways, roads and even cities. That orange lighting is completely awful.
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Old February 17th, 2011, 07:03 PM   #20
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Not only is the orange lighting ugly, the light polllution alone is an even better reason for switching to LEDs. I'm not sure how it is in Europe but here in the US you can tell when you are driving in the midwest/west when you are approaching a big city. The sky slowly glows orange for 40 miles or more from the city center and the stars slowly disappear as you grow closer. I'm all for LEDS. The sooner the better for us all.
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