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Old November 10th, 2009, 01:59 AM   #121
Bjarki
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On northern latitudes it makes very much sense to illuminate roads with high traffic volumes. In Iceland, the semi-motorway Reykjanesbraut is illuminated between Reykjavík and Keflavík International Airport and the towns around there. The heaviest traffic there is between 6 and 9 in the morning and during winters it's pitch black darkness at that hour. The road lighting also helps drivers to spot black ice on the road surface.
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Old November 10th, 2009, 11:12 AM   #122
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Lights in urban areas, none in rural areas are great. That's how it pretty much is in the United States.
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Old November 11th, 2009, 03:45 AM   #123
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Quote:
Originally Posted by FM 2258 View Post
Lights in urban areas, none in rural areas are great.
Why "none in rural areas are great"?
Woudn't it be much nicer at least not to have to mess with the high beam all night? And not to have the occasional driver who doesn't know how to use high beam?
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Old November 11th, 2009, 04:45 PM   #124
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Quote:
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When the motorway is lit you get much more information about that vehicle, including its relative speed and its type, so you can adjust your decision accordingly.
On a well-lit motorway I can't imagine how you could have trouble "noticing" a vehicle in front of you (or even behind).
But what about the consumption of energy? Since there's not much traffic on the motorways during the night, most of the time the lights would shine for nobody...and on taxpayer's cost.
And then there's light pollution...

I would go for one of the two solutions:
1) Place panels between 2 carriageways so you could use full lights. They've done this on the corners on new motorways in Poland, I believe.(and elsewhere also)
2) Replace the reflector posts with small but powerful and energy efficient LED lamps.
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Old November 11th, 2009, 05:16 PM   #125
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Even placing a wire net between carriageways helps to solve full lights problem. Wire net at angle does not let light go through - this is done in some places in Latvia. Cheap, easy to maintain.

Would be cool if there would be developed weakly photoluminescent asphalt. It would "charge" from daylight and then emit light in evening. By late night it would be dark already - but there is a lot less traffic by then.
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Old November 12th, 2009, 04:33 PM   #126
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I think that only small parts of motorways should be illuminated. e.g. at exit ramps. I think the deceleration lane/exit lane and of course also the acceleration lane should be illuminated. Sometimes the road markings can be quite hard to see.
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Old November 12th, 2009, 07:26 PM   #127
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AFAIK street lights in Belgium are powered by surplus electricity from nuclear plants, so energy consumption doesn't really matter in this case and the additional burden on the tax payers is minimal.
Under those specific circumstances, what's wrong with having nicely lit motorways? From a driver's point of view I think it's great.
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Old November 12th, 2009, 07:57 PM   #128
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Quote:
Originally Posted by snowman159 View Post
AFAIK street lights in Belgium are powered by surplus electricity from nuclear plants, so energy consumption doesn't really matter in this case and the additional burden on the tax payers is minimal.
I don't know, I think it doesn't matter that much energywise (the entire public street lights in the Netherlands account for 1.5% of the Dutch electricity consumption, and only 6 - 7% of that is freeway lighting), but generally, the lamps have to be replaced every two years, and are maintenance sensitive. Also, placing a light pole every 50 - 100 meters can't be cheap either.

Although, on the total budget, it's probably not more than a few million euros.
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Old July 7th, 2012, 11:29 AM   #129
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In the UK the authority that operates motorways in England, the Highways Agency, seems to be a bit two-faced with motorway lighting.

Firstly, the standards governing which sections of motorway require lighting changed a few years ago, because it was discovered that motorway lighting has less of an effect on accident rates than previously believed. The changes are also retrospective. There are now several sections of motorway where lighting switches off between midnight and 5am when traffic volumes are low. Some sections of motorway are also having their lighting permanently switched off or removed. On some motorways the lighting is just being disconnected but kept in place. In other places, where lighting requires replacement due to its structural condition, it is removed. The question that is asked is "If this were a new build motorway, would it justify lighting under current standards?" For lots of currently lit motorways the answer is no, and over the next decade I expect to see a few more sections of motorway lose their lighting through open countryside.

However, where lighting remains it is getting bigger, brighter and higher power all the time, so bright that you could probably perform open heart surgery under it. When motorway lighting was first introduced in the 1960s they used 140 Watt lamps at about 35-40m spacings. The orange low pressure sodium lighting that many people will remember in the 1980s and 1990s used 180 Watt lamps at about 35-40m spacings. The current specification appears to be for 600 Watt lamps at 50m spacings. So instead of a power consumption of 14.4kW per mile by 1980s standards, we now have a power consumption of 36kW per mile. Even where they do not opt for 600 Watt lamps, the general trend is for bigger, brighter and higher wattage than before.

It is almost the case in England that they are having to save money by switching off some motorway lighting in order to fund the wasteful, higher energy lighting that they want to retain. The two sides balance out, good energy savings contradicted by severe overkill.
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Old July 7th, 2012, 03:11 PM   #130
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I don't really see the point in motorway lightning. In Germany I only know of two short sections (A7 Hamburg and A3 Frankfurt Airport) and the roads seems to be managing fine without lights. I prefer to drive in the dark anyway, these lights in Belgium are horrible.
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Old July 7th, 2012, 03:44 PM   #131
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A1 Arad bypass motorway (12,2 km) is the first in Romania to be completely lightened.

http://goo.gl/maps/dO9D

















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Old July 7th, 2012, 03:45 PM   #132
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Old July 7th, 2012, 03:45 PM   #133
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Old July 7th, 2012, 03:46 PM   #134
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