Author Topic: Energy saving street lamps?  (Read 16023 times)

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Offline Audioguru

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Re: Energy saving street lamps?
« Reply #75 on: November 25, 2018, 06:10:52 pm »
In my city, we save energy on the new LED streetlights because some of them do not work (Chinese ones?).
The streets are still dark all night because most lights are shaded by trees.

Why do cars have headlights? Duh, to see the road at night? The streetlights are to light the road for little old lady drivers who do not know how to turn on the headlights and the car maker saved a few cents by not making headlights automatic.
 

Offline stj

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Re: Energy saving street lamps?
« Reply #76 on: November 26, 2018, 03:19:52 am »
no, streetlamps are for people on foot. (and government camera's)
though obviously they let you see more road than your car will illuminate.
 

Online coppice

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Re: Energy saving street lamps?
« Reply #77 on: November 26, 2018, 09:35:35 am »
Why do cars have headlights? Duh, to see the road at night? The streetlights are to light the road for little old lady drivers who do not know how to turn on the headlights and the car maker saved a few cents by not making headlights automatic.
Most of the UK's motorways were built without street lights. The high death rate resulted in all the junctions being retrofitted with lights. The still not very good death rate resulting in the eventual lighting of the entire motorway network. Its not just about providing light for pedestrians. Before the motorways were lit they were OK to drive on in the middle on the night, when they were fairly quiet. In the winter rush hours they could be pretty scary.
 

Offline stj

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Re: Energy saving street lamps?
« Reply #78 on: November 26, 2018, 01:41:20 pm »
i mostly used them in the night,
so just following the "cats eyes" like a 70's video game!  :-DD
 

Offline grumpydoc

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Re: Energy saving street lamps?
« Reply #79 on: November 26, 2018, 03:23:07 pm »
The still not very good death rate resulting in the eventual lighting of the entire motorway network.
The whole of the UK motorway network is not lit, I don't even think all the junctions are, maybe all of the motorway-motorway intersections but certainly not all the junctions.

 

Online coppice

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Re: Energy saving street lamps?
« Reply #80 on: November 26, 2018, 03:26:17 pm »
The still not very good death rate resulting in the eventual lighting of the entire motorway network.
The whole of the UK motorway network is not lit, I don't even think all the junctions are, maybe all of the motorway-motorway intersections but certainly not all the junctions.
Perhaps. There is certainly a lot more lighting than there used to be. Even the M25, running through suburban London, was mostly unlit for years.
 

Offline grumpydoc

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Re: Energy saving street lamps?
« Reply #81 on: December 02, 2018, 01:29:44 pm »
There is certainly a lot more lighting than there used to be.
M25, perhaps.

They've actually reduced lighting on the M5 Strensham to Birmingham stretch.
 

Offline james_s

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Re: Energy saving street lamps?
« Reply #82 on: December 07, 2018, 06:09:55 pm »
You would need extremely bright headlamps to not be over-driving your lights at highway speed. Street lighting allows you to see further up ahead than you otherwise could, and also lets you see anything off to the side that could potentially become an obstacle, such as wild animals. Accident rates on unlit roads are much higher than lit roads, all else being equal. Street lighting done properly improves situational awareness.
 


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