Orpington Astronomical Society

Astronomy => Alerts! Questions? Discussions... => Topic started by: Carole on Apr 26, 2011, 10:28:05

Title: Switching streetlights off late at night, or not...
Post by: Carole on Apr 26, 2011, 10:28:05
I just found this post on SGL:

http://news.bbc.co.uk/1/hi/programme...ht/9173729.stm

Many councils are turning off street lights as a means of saving money, BBC Newsnight has learned. Of 75 councils it spoke to in England and Wales, 32 said they would turn some lights off, nine are dimming lights and 14 considering street light cutbacks.
There are is no statutory obligation for councils to light the streets and flicking the switch is a cost-effective option in a time of austerity cuts.
But a charity is warning it could leave people with sight problems vulnerable.
RP Fighting Blindness, which works with one in 3,000 people who suffer retinitis pigmentosa - or night blindness - said it would put them at risk of street crime.
Newsnight contacted 75 councils in England and Wales and asked if they were scaling back street lighting.
Of those we spoke to 32 said they were turning off some lights, nine were opting for dimming lights, 14 were considering changes while 20 had no plans to alter levels of street lighting.
Below is a full breakdown of the councils we contacted.

COUNCILS TURNING OFF SOME STREET LIGHTS
Dorset
Southwark
Suffolk
Buckinghamshire
North Somerset and Bristol
Nottinghamshire
Powys
Gloucestershire
Bath and North East Somerset
Peterborough City Council
Shropshire
Devon
Rutland County
Telford and Wrekin
Leicestershire
Stockton-on-Tees Borough
South Gloucestershire
Bridgend
Blaenau Gwent
Conwy
Pembrokeshire
Isle of Anglesey
Carmarthenshire
Ceredigion
Newport
Torfaen
Durham
Central Bedfordshire
Borough of Poole
Cornwall
East Sussex
West Sussex

COUNCILS DIMMING SOME STREET LIGHTS
Redcar & Cleveland Borough
Nottingham City Council
Plymouth City Council
Slough Borough
Southampton City Council
Monmouthshire
Hampshire
Lincolnshire
Surrey

COUNCILS CONSIDERING SWITCHING OFF/DIMMING LIGHTS
North Lincolnshire
North Yorkshire
Swindon Borough
Southend-on-Sea Borough
Brent
Neath Port Talbot County Borough
Cardiff
Gwynedd
Derbyshire
Kent
Hertfordshire
Worcestershire
Oxfordshire
Warwickshire

COUNCILS NOT PLANNING CHANGES TO STREET LIGHTING
Northumberland
Portsmouth City Council
Reading Borough
Barking and Dagenham
Stoke-on-Trent City Council
Luton
Conwy
Denbighshire
Milton Keynes
Isle of Wight
Blackpool Borough
Halton
Medway
City of York
East Riding
North East Lincolnshire
Lancashire
Northamptonshire
Cambridgeshire
Cumbria Staffordshire
Title: Re: Street Lighting news
Post by: Mike on Apr 26, 2011, 10:47:01
No mention of Bromley in any of that :(
Title: Re: Street Lighting news
Post by: Carole on Apr 26, 2011, 11:14:27
QuoteNo mention of Bromley in any of that
No, but Kent is considering it.  I guess that unless London decides to do cut lighting it won;t make much difference to us in Bromley, but might make the DSC camps even better.

Also, might "catch on".

Carole
Title: Re: Street Lighting news
Post by: Rocket Pooch on Apr 26, 2011, 12:08:11
Yay for West Sussex.
Title: Re: Street Lighting news
Post by: Carole on Apr 26, 2011, 12:16:04
QuoteYay for West Sussex.
Jammy so and sos.

Title: Re: Street Lighting news
Post by: Fay on Apr 26, 2011, 12:22:34
I think I will mail Bromley
Title: Re: Street Lighting news
Post by: Carole on Apr 26, 2011, 12:52:03
QuoteI think I will mail Bromley
Send me a copy of the address Fay and I'll send one too.

Carole
Title: Re: Street Lighting news
Post by: Mac on Apr 26, 2011, 14:05:15
QuoteYay for West Sussex.

Oh well it will mean even darker skies  :P

Fingers crossed they dont go down the route of the ultra modern led lighting
as you cant filter that stuff out, being broad spectrum lighting.
At least you can filter the current light pollution.

Mac.
Title: Re: Street Lighting news
Post by: Carole on Jul 11, 2011, 07:41:41
A bit more news, shame it's not applicable to anywhere near Bromley/Orpington, but might "catch on", or at least might help our DSCs.

http://www.dailymail.co.uk/news/article-2012755/Street-lights-switched-HALF-Britain.html

Carole
Title: Re: Street Lighting news
Post by: mickw on Jul 11, 2011, 08:31:41
I wonder how the power companies will replace their lost revenue  :!
Title: Re: Street Lighting news
Post by: Fay on Jul 11, 2011, 08:36:56
i read this article last week & there was no mention of Kent.....yet
Title: Re: Street Lighting news
Post by: MarkS on Jul 11, 2011, 08:53:04

Just think how dark RV and HH will be if Kent switches out the lights :-)
Title: Re: Street Lighting news
Post by: Carole on Jul 11, 2011, 09:25:55
Perhaps we should switch DSCs to West Sussex in the light of this (pun  :cheesy:)
Carole
Title: Re: Street Lighting news
Post by: Whitters on Jul 11, 2011, 11:51:43
Uckfield lights going off this month :cheesy:
Title: Re: Street Lighting news
Post by: JohnP on Jul 11, 2011, 11:53:23
QuoteI think I will mail Bromley

Fay - did you ever contact Bromley council on this issue?
Title: Re: Street Lighting news
Post by: Mac on Jul 11, 2011, 17:37:30
I think the reply Fay got was

The lights on but no ones home. :cheesy:

Mac.
Title: Re: Street Lighting news
Post by: PhilB on Jul 12, 2011, 06:44:13
Quote from: mickw on Jul 11, 2011, 08:31:41
I wonder how the power companies will replace their lost revenue  :!

Street lighting is unmetered. The power companies take a best guess at what is being used and the nature of the animal is such that this guess is normally short of the mark. I don't think that anyone really knows exactly what the figure is but any shortfall ends up in the distribution company's resistive losses for which everybody pays. Turning off lights may have the effect of both reducing revenue and resistive loss and, taken together, these cancel one another out. In any event, aren't we being told that there isn't enough power to go round any way?
Title: Re: Street Lighting news
Post by: Whitters on Jul 13, 2011, 00:32:13
Our local paper has been running "horror stories" of what will happen when the lights are turned off. They ran similar stories for the first two towns to announce the lights will be turned off at midnight, which of course will turn all the local youth into gun tot'n homicidal maniacs. Or they may go home to bed 'cos they can't see stuff. Well after the second story they ran a text poll 'should the lights be turned off' the result was unanimous 100% YES. Well done the folk of East Sussex  :D  it didn't say how many folk had voted, I did. The following week there was the story Uckfield was to join the ranks of the towns to turn off lights, there was barely a couple of column inches, compared to then previous front page indignant leaders. The lesson place your vote, 100% of 1 voter is enough to quell decenters.  :cheesy:
Title: Re: Street Lighting news
Post by: MarkS on Jul 13, 2011, 07:38:38

Sounds like really good news for you, Paul.  It'll be very interesting to see the difference - before and after.  Down in Riberac, all the recently installed lighting switches off at 11:30pm and the difference is quite noticeable.  The older lighting remains on constantly.

I just need Maidstone, Ashford and Tenterden to do the same!

Mark
Title: Re: Street Lighting news
Post by: JohnP on Jul 13, 2011, 13:49:19
OK - I contacted Bromley council anyway to see what their policy is: This is the response I got... seems like it's not going to happen here for a while :-(


Thank you for your email.

The decision to turn off street lighting would be made by the elected Members as it would require a change to the current Council policy, although I am aware that it is among a number of cost saving measures on which they have sought information.

At the moment, the majority of new lanterns installed in Bromley's residential areas are equipped with electronic control gear which reduces the lamp output from midnight to 6:00am by 25%. The lanterns are fitted with flat glass which is designed to reduce light spill compared with the deep bowl type reflector found on the older style lanterns which is one of the major contributors to sky glow.

The majority, but not all, of the Authorities deciding to go "part-night" lighting confine the schemes to the more rural areas where the existing lighting is relatively poor.

On a purely personal note I think that the move to switch off lighting could leave the Council open to claims if could it be shown that removing lighting contributed to or caused an accident / incident.

Under the Highways Act there is no obligation for a Highway Authority to provide lighting but it is obliged to maintain any that it has installed, again I'm not sure where that would sit regarding switching off.

The attached link should give access to the Bromley website giving details of your local Councillors should you wish to contact them direct.
Title: Re: Street Lighting news
Post by: Rocket Pooch on Jul 13, 2011, 16:41:52
Our nearest stree light is just over 2 miles away, I'll call the council to see if its going to get turned off.  Brighton is now GREEN so they must be turning the lights off there, although there is a fair argument to say they did that in the mid 50's.  As for Gatwick a quick bought of ash seems to cure that as well  :ferret:
Title: Re: Street Lighting news
Post by: PhilB on Jul 13, 2011, 17:51:04
Dartford used to have a "turn of two out of every three street lamps after midnight" policy. Thanks to the efforts of a certain councillor this policy was squashed many years ago. There appears to be no move to reinstate it. My biggest problem isn't in Kent anyway but north of the river in Essex. It's called Tilbury Docks.
Title: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Carole on Jun 16, 2013, 09:57:28
Thousands of streetlights across the county are set to be switched off as part of a drive by Kent County Council to cut spiralling energy costs.

Within a month, work will get under way to pull the plug on 3,000 streetlights - and if there are no complaints after a year-long trial, they will be removed altogether.

But a more far-reaching proposal now out for consultation could see another 70,000 of Kent's 120,000 lights switched off for long periods during the night as part of an initiative county transport chiefs will save the taxpayer £1m a year.

http://www.kentonline.co.uk/kentonline/news/Thousands-of-streetlights-to-be-1866/
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: The Thing on Jun 16, 2013, 10:16:43
Yippee, shame I don't live in Kent. Even though my address is 'Kent' I don't think this will cover Beckenham somehow!
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: mickw on Jun 16, 2013, 10:21:03
What are "Streetlights"?   :twisted:
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Rick on Jun 16, 2013, 11:31:31
It'll be interesting to see how this plays out. I heard a discussion on the radio yesterday in which the public safety side against the switch-off was being quite strongly presented...
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Mac on Jun 16, 2013, 12:34:55
QuoteIt'll be interesting to see how this plays out. I heard a discussion on the radio yesterday in which the public safety side against the switch-off was being quite strongly presented...

[RANT]
Yes but its always presented by people who are stupid.
I think you need to ask them when was the last time they were out walking the streets at 1 and 2 am?
and did anything happen to them?

How many people are going to be out walking the streets at 1 and 2 am in rural kent?
probably very few, most people drive every where now.

and will it make any difference. If you are going to get mugged at that time of the morning, do you think street lights will change anything?

Do what us rural people do when we are out at night, and take a bloody torch.

I think these people who ram Health and safety down your throats every working min of the day, should be shot.
Most of them are not in the real F@~#&^" world.
:boom:
[/RANT]
Mac.
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Rick on Jun 16, 2013, 14:24:07
Yeah. You can show them that turning lights off actually reduces crime and they'll still want brighter lights on...
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Ivor on Jun 16, 2013, 21:22:34
Great if it happens but it seems a bit shortsighted surely you fit the lights with PIRs rather than timers. These would turn on the light ahead so there is always at least two lights on either side of the person. I can't imagine it would be anymore expensive. This will keep everyone happy.
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: mickw on Jun 17, 2013, 06:46:34
Quote from: Ivor on Jun 16, 2013, 21:22:34
Great if it happens but it seems a bit shortsighted surely you fit the lights with PIRs rather than timers. These would turn on the light ahead so there is always at least two lights on either side of the person. I can't imagine it would be anymore expensive. This will keep everyone happy.

I'm sure the cats, dogs and foxes will feel a lot more secure but lights switching on and off, apparently at random, could be more annoying for residents
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Tony G on Jun 17, 2013, 07:35:32
Quote from: mickw on Jun 17, 2013, 06:46:34
Quote from: Ivor on Jun 16, 2013, 21:22:34
Great if it happens but it seems a bit shortsighted surely you fit the lights with PIRs rather than timers. These would turn on the light ahead so there is always at least two lights on either side of the person. I can't imagine it would be anymore expensive. This will keep everyone happy.

I'm sure the cats, dogs and foxes will feel a lot more secure but lights switching on and off, apparently at random, could be more annoying for residents

I think it would be more annoying to the moths. :!

Tony G
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: MarkS on Jun 17, 2013, 07:37:40

If they would switch off Maidstone, Ashford and Tenterden every night I would be more than happy :-)
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Ivor on Jun 17, 2013, 08:52:41
Oh the nay sayers, if you can set the house alarm to not be sensitive to pets I'm sure you could do the same for these, clearly I'd prefer no lights.
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Rick on Jun 17, 2013, 09:09:16
Judging by the number of PIR-controlled lights round here which switch on at all manner of passing warm bodies  :ferret:  :squirrel:  :baa: :chase:, I'd say that, while it may be possible to get the sensitivity right, most times it doesn't happen.

At least an off switch is more likely to be reliable.
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: Fay on Jun 17, 2013, 20:59:08
as long as people dont put loads more lights in their gardens. an imbecile around the corner to me has a dozen zebra crossing lights all along his front wall!!!!!
Title: Re: Kent County Council considers switching off 70,000 streetlights after midnight
Post by: RobertM on Jun 18, 2013, 21:15:00

[RANT]
Contents sensored
[/RANT]

In summary I totally agree with all the other comments - PIR so often means Prat In Residence these days.

Robert
Title: Ashford Borough Council consulting on possible light pollution policy
Post by: MarkS on Mar 30, 2014, 18:40:59
Ashford B.C. have realised that they have some of the darkest skies in the South East.  There is a possibility of a planning document to preserve this natural resource and to control the further spread of light pollution.  The introduction of some kind of "dark sky protection zone".

Further info here:
http://www.ashford.gov.uk/news/shining-a-light-on-light-pollution-24th-march-741/

Consultation documents here:
https://haveyoursay.ashford.gov.uk/consult.ti/Dark_Skies/consultationHome?
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: RobertM on Mar 31, 2014, 13:29:56
Sounds like you moved to the right neck of the woods 8)
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: MarkS on Mar 31, 2014, 16:21:14
Mick also ...
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: mickw on Mar 31, 2014, 17:50:50
Quote from: MarkS on Mar 31, 2014, 16:21:14
Mick also ...

:oops:  :(
Unlike Mark, I'm a complete and utter lazy git and have done nothing constructive since being here kept in the dark  ;)
Title: Ashford Observatory/Planetarium project in the news
Post by: MarkS on May 02, 2014, 00:17:34
The Ashford Observatory/Planetarium project is (local) front page news:
http://www.kentonline.co.uk/romney-marsh/news/ashford-the-final-frontier-16613/

Hence Ashford's possible planning policy on light pollution and a dark sky protection zone:
http://forum.orpington-astronomy.org.uk/index.php?topic=9634.0
Title: The Kent Street Light Switch Off
Post by: MarkS on May 10, 2014, 15:05:41
Kent County Council is now in Phase 2 of a plan to switch off many street lights between midnight and 5:30am.  This is being implemented during the course of this year.  Many areas have already been done.  The squares in yellow in the map below indicate the street lights being affected.

(http://www.markshelley.co.uk/webdisk/KentSwitchOff.jpg)

You can zoom in and browse interactively here:
http://webapps.kent.gov.uk/KCC.MyNearestGIS.Web.Sites.Public/?lyrs=38,39&xmin=486352&xmax=695648&ymin=91716&ymax=191284&bg=_osColour

If you zoom in sufficiently you can see the individual lights.

Inevitably the scheme has aroused controversy and as a result the number of street lights affected could end up being reduced.  But hopefully we can look forward to some darker sky!

Mark
Title: Re: The Kent Street Light Switch Off
Post by: Mike on May 10, 2014, 15:47:24
That's good news. Let's hope the 'controversy' from the paranoid brigade doesn't ruin it all.
Title: Re: The Kent Street Light Switch Off
Post by: Kenny on May 10, 2014, 19:00:30
Shame they don't appear to be doing inside the M25.
Title: Re: The Kent Street Light Switch Off
Post by: MarkS on May 11, 2014, 00:14:31
Quote from: Kenny
Shame they don't appear to be doing inside the M25.

Swanley, North Cray, Hextable, Wilmington, Dartford?  They're affected and they're all within the M25.  The map I showed did not cover everything but the interactive link does.
Title: Re: The Kent Street Light Switch Off
Post by: The Thing on May 11, 2014, 11:49:31
Lucky you, they are turning all your roads' streetlights off! You should try and record some sky darkness measurements over the next few months as they implement the switch off. It's odd that Bethersden appears to have no streetlights despite being on the A28.
Title: Re: The Kent Street Light Switch Off
Post by: mickw on May 11, 2014, 12:59:57
What's a street light ?

:)
Title: Re: The Kent Street Light Switch Off
Post by: Tony G on May 11, 2014, 13:31:25
Quote from: mickw on May 11, 2014, 12:59:57
What's a street light ?

:)

:) :) :)

If you are about Wednesday Mick I may pop in with your charger (another covert mission) :evil:

Tony G

PS sorry to hi jack this thread......it will not happen again. :oops:
Title: Re: The Kent Street Light Switch Off
Post by: mickw on May 11, 2014, 13:59:15
QuoteIf you are about Wednesday Mick I may pop in with your charger (another covert mission)

I'll be here purple penguin - any further communication should be on our personal network in case the plan is jeopardized  ;) 8)
Title: Re: The Kent Street Light Switch Off
Post by: Carole on May 11, 2014, 15:59:04
QuoteWhat's a street light ?
:! :!
Title: Re: The Kent Street Light Switch Off
Post by: ApophisAstros on May 11, 2014, 17:18:48
i have always wondered why some motorways donot have street lights ie ok to drive at 70 mph in the dark but not ok to drive at 30mph in town.
where i work the locals were asked to vote on whether to have streetlights at all , hence no street lights in a lot of areas, as
a result lower council tax for them.shame everywhere is not asked.
Title: Re: The Kent Street Light Switch Off
Post by: MarkS on May 11, 2014, 19:40:26
Quote from: The Thing
You should try and record some sky darkness measurements over the next few months as they implement the switch off.

Definitely - it'll be quite interesting.
Title: Re: The Kent Street Light Switch Off
Post by: Tony G on May 11, 2014, 20:17:57
Quote from: RogerN on May 11, 2014, 17:18:48
i have always wondered why some motorways donot have street lights ie ok to drive at 70 mph in the dark but not ok to drive at 30mph in town.

I think the reason is to see the pedestrians in the built up areas usually 30mph zones as well as obstacles like parked vehicles, islands, potholes, etc, as there are not too many on the motorways,  ;) (with the exception of the M25 for pedestrians, as sometimes it maybe quicker to walk. :cheesy:)

Tony G
Title: Re: The Kent Street Light Switch Off
Post by: Carole on May 11, 2014, 22:22:55
You lucky people living in these areas, but at least it gives us more DSC choices and better skies.

Carole
Title: Re: The Kent Street Light Switch Off
Post by: Kylee on May 12, 2014, 22:19:31
I'm in Dartford and ours all go out at 0100 until 0530.....it's been like that for a month now  :D
Title: Re: The Kent Street Light Switch Off
Post by: RobertM on May 12, 2014, 22:54:59

Seriously, it's 1am and you find yourself in the garden without a torch and a copy of your favourite paper (as one does).  The street lights are off, due to some mislead nutcases (astronomers and country folk and the like), and you want to read said paper- you're in a bit of a pickle aren't you !  Us townies don't need a torch, we can read the paper anytime, in fact if it gets any brighter we'll be needing sunglasses at night too 8) :!

Where's the green with envy emoticon when you need one  :!
Title: Re: The Kent Street Light Switch Off
Post by: MarkS on May 12, 2014, 23:25:03
Robert, don't worry, if it's anytime near full moon you can sit in a deckchair in the garden and read the paper - both in town and country.  I know - I've just been out and tried it (between clouds).

Generally, at home, my SQM readings increase by approx 0.25 between late evening and early morning - I guess this is as people switch lights off.  At Rother Valley and Kelling Heath, I've noticed a more pronounced effect - an increase of between 0.3-0.4

It'll be interesting to see if I now record a greater difference following the midnight/1am switch off.  Maidstone and Ashford account for a large part of my skyglow and it appears that large numbers of streetlights there will be switched off.

Mark
Title: Re: The Kent Street Light Switch Off
Post by: RobertM on May 12, 2014, 23:57:29
I recently got 15.71 on my iphone app - not very good I don't suppose :(
Title: Re: The Kent Street Light Switch Off
Post by: MarkS on May 13, 2014, 00:14:47
Quote from: RobertM
I recently got 15.71 on my iphone app - not very good I don't suppose :(

Which app is it?
Title: Re: The Kent Street Light Switch Off
Post by: RobertM on May 13, 2014, 16:42:18
DSM - dark sky meter

So far I think it's a little optimistic but at least it stands a chance of giving me relative readings.

Title: Re: The Kent Street Light Switch Off
Post by: Mike on May 13, 2014, 17:31:43
Not sure how accurate that app would be when it could only measure light levels and not temperature (IR) as in the SQM which uses an MXL90614 IR sensor.
Title: Re: The Kent Street Light Switch Off
Post by: Fay on May 13, 2014, 19:44:36
they would have to turn them off early here as I am in bed by 10 imaging or not!!! :lol: :lol: :lol:
Title: Re: The Kent Street Light Switch Off
Post by: RobertM on May 13, 2014, 21:46:41
Quote from: Fay on May 13, 2014, 19:44:36
they would have to turn them off early here as I am in bed by 10 imaging or not!!! :lol: :lol: :lol:

Lightweight :lol: :lol:
Title: Re: The Kent Street Light Switch Off
Post by: MarkS on Jun 01, 2014, 14:40:17
Friday night I got a chance to take some measurements.  There was no difference in Sky Quality after 1pm - which was exactly the case at the New Romney DSC.  The orange glow from Maidstone and Ashford did not reduce.  I suspect that Maidstone and Ashford are still waiting for the scheme to roll out.   At least I hope that's the case.  Otherwise it means that the streetlighting concerned is only a tiny part of the overall light pollution problem.

Mark
Title: Re: The Kent Street Light Switch Off
Post by: mickw on Jun 01, 2014, 16:07:50
QuoteOtherwise it means that the streetlighting concerned is only a tiny part of the overall light pollution problem

It's all those bleedin stars that won't go out - what we need is more clouds  :twisted:

There are complaints about the lights being turned of making grannies feel insecure - I wonder if they sleep with their eyes open  :roll:
Title: Re: The Kent Street Light Switch Off
Post by: Fay on Jun 01, 2014, 16:09:57
A lot could be all the lights left on in shopping centres and office blocks
Title: Re: The Kent Street Light Switch Off
Post by: RobertM on Jun 01, 2014, 19:03:46
Ah, you must mean Tescos and Canary Wharf  :-?
Title: Re: The Kent Street Light Switch Off
Post by: Fay on Jun 01, 2014, 19:54:11
exactly!
Title: Re: The Kent Street Light Switch Off
Post by: MarkH on Jun 01, 2014, 21:08:50
Has the  " blue dome" never been discussed on the forum before ?
Title: Re: The Kent Street Light Switch Off
Post by: MarkS on Jun 01, 2014, 23:29:22
Quote from: MarkH
Has the  " blue dome" never been discussed on the forum before ?

Blue dome?
Title: Re: The Kent Street Light Switch Off
Post by: MarkH on Jun 02, 2014, 06:25:01
Yes look north during darkness during late may, June and early July and you'll notice a blue dome in the sky up to about 25° from the sun illuminating the sky from the other side of the planet.
Title: Re: The Kent Street Light Switch Off
Post by: Rick on Jun 02, 2014, 08:44:47
When the Sun doesn't get far enough below the horizon to stop it illuminating the highest reaches of the atmosphere even at midnight? Look for definitions of twilight (and "Astronomical Twilight" in particular). If you can detect the difference between the later stages of astronomical twilight and full night then you've got a seriously dark sky.
Title: Re: The Kent Street Light Switch Off
Post by: Ivor on Jun 06, 2014, 22:32:08
Just arrived on my road :)

(https://farm4.staticflickr.com/3877/14360990714_9fafa61c4b_z.jpg)
Title: Re: The Kent Street Light Switch Off
Post by: MarkS on Jun 06, 2014, 22:51:25
The sign looks a bit dark.  Didn't they think to illuminate it?
Title: Re: The Kent Street Light Switch Off
Post by: Ivor on Jun 06, 2014, 22:54:46
:) fortunately not

Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: MarkS on Jun 24, 2014, 22:05:55
One step closer to reality and with possible extension to Romney Marsh:
http://www.ahbs.org.uk/news/Ashford-moves-to-protect-its-rural-dark-skies
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: Carole on Jun 25, 2014, 09:13:04
Lucky you Mark and it certainly won't do our DSCs much harm.

carole
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: MarkS on Jul 01, 2014, 21:35:29
Awaiting final ratification on 10 July:
http://www.ashford.gov.uk/news/ashford-moves-to-protect-its-rural-dark-skies-27th-june-810/
Title: Watch out! Petition against switch-off...
Post by: ApophisAstros on Nov 20, 2014, 02:20:19
found this locally at work think we`ve got a fight on our hands!!
(http://homepage.ntlworld.com/apophis_ntl/DSC_0003.JPG)
roger
Title: Re: The Kent Street Light Switch Off
Post by: Mike on Nov 20, 2014, 10:16:57
Yeah they've been running a campaign in our local paper to try and get them switched back on. All due to 1 or 2 paranoid idiots. One who had a break in after the lights went off. Like that is at all relevant.

Do they seriously think burglars can see in the dark or something? It is SAFER with the lights OFF.

Despite the fact that the majority of burglaries occur in broad daylight too!! Idiots.
Title: Re: The Kent Street Light Switch Off
Post by: Rick on Nov 20, 2014, 12:51:14
Yeah, burglars need to see where they're going, too. If they have to use torches then they're much more likely to be spotted.
Title: Re: The Kent Street Light Switch Off
Post by: ApophisAstros on Nov 21, 2014, 07:23:19
lets not give too much info to interested prospective burglars..................lol :lol: :lol: :lol:
roger
Title: Kent Street lights
Post by: Carole on Feb 13, 2015, 18:26:04
Bad news for the people in Kent:
http://www.bbc.co.uk/news/uk-england-kent-31143466

Carole
Title: Re: Kent Street lights
Post by: Kenny on Feb 13, 2015, 18:47:33
Boooo!

And they are too  bright and not well directed.
Title: Re: Kent Street lights
Post by: RobertM on Feb 13, 2015, 19:56:37
And white :o
Title: Re: Kent Street lights
Post by: Mike on Feb 13, 2015, 22:33:59
Absolutely unbelievable.
Title: Re: Kent Street lights
Post by: Fay on Feb 13, 2015, 22:56:24
why do the powers that bealways take notice of imbeciles!!!!
Title: Re: Kent Street lights
Post by: MarkS on Feb 14, 2015, 06:57:56
The existing "switch off" policy has been a boon to many of us astronomers, allowing much better views of our night sky heritage after switch off. Unfortunately, as Kenny alludes to, many LED lights are poorly designed, with painfully intense, dazzling luminaires and a lot of light leakage both sideways and upwards due to poor design and installation.  Just take a walk along Crofton Road Orpington at night to see would the future could look like.

I plan to write to KCC expressing my great disappointment with the decision to return to all night lighting but also to encourage them to buy streetlamps with good directional properties and good shielding in accordance with policies exemplified in Ashford's excellent Supplementary Planning Document. Pressure needs to be applied now because once they have signed contracts with a street light supplier, it will be too late to prevent a new destructive tsunami of lighting.

For my part, I dread the long-term and widespread light pollution effects of whole towns switching to LED luminaires with their wideband spectrum.  By the time any nefarious effects begin to become apparent, it will be too late to stop.

Mark
Title: Re: Switching streetlights off late at night, or not...
Post by: Rick on Feb 14, 2015, 09:41:38
Aye, if they're going to replace all the lights then it's definitely worth making them think about what sort of fittings they install, or they'll put up the kind of full-glare-specials Bromley have put up along Crofton Road and elsewhere of late.
Title: Kent County Council consultion on LED street lights
Post by: MarkS on Nov 07, 2015, 23:08:30
It looks like the usefulness of light pollution filters will shortly be coming to an end.  KCC is planning to rapidly convert all street lighting to LED i.e. broad spectrum lighting.  Light pollution filters are useless against broad spectrum lighting.

The only remaining question is whether they are left on permanently throughout the night or, after midnight, dimmed or switched off.  To my mind the other important issue is how well directed is the light cone to avoid too much light leakage outwards and upwards.  Also glare (e.g. for drivers and for pedestrians on footpaths) is a safety issue, unless they are well designed.

Until the end of November, you have a chance to make your views known, during their consultation exercise:
http://consultations.kent.gov.uk/consult.ti/streetlighting/consultationHome

I suppose it is a sign of the times that 6 or more of the 13 questions in the consultation document are related to gender, age, race, sexual orientation, religion and disability.

Mark
Title: Re: Kent County Council consultion on LED street lights
Post by: Carole on Nov 08, 2015, 00:14:27
Done
Title: Re: Kent County Council consultion on LED street lights
Post by: Rick on Nov 08, 2015, 00:59:27
Quote from: MarkS on Nov 07, 2015, 23:08:30I suppose it is a sign of the times that 6 or more of the 13 questions in the consultation document are related to gender, age, race, sexual orientation, religion and disability.
Five of which they should not be asking, because they're utterly irrlevant. Only disability could have a bearing on lighting matters, and even then mainly only if it's a visual disability.

Well, I suppose it might be possible to cook up a religeon that demands True Darkness at night and regards artificial lights as Abomination, or something...   :abducted:

Ho hum. At least there's a "None of your business" answer...
Title: Re: Kent County Council consultion on LED street lights
Post by: Simon E on Nov 19, 2015, 11:53:04
Done
Title: Re: Kent County Council consultion on LED street lights
Post by: Fay on Nov 19, 2015, 16:45:15
cant believe they had white: irish traveller on there!!  I just put that except for disability all the others were totally irrelevant!!

Title: Re: Kent County Council consultion on LED street lights
Post by: ApophisAstros on Nov 20, 2015, 10:25:28
should that be consultation on LED lights , mark?...lol
Roger
Title: KCC consultation on lighting ends tonight (30/11/2015)
Post by: JonC on Nov 30, 2015, 16:04:45
Just spotted this
http://consultations.kent.gov.uk/consult.ti/streetlighting/consultationHome

One option is to go back to all night lighting once LEDs have been installed.
Title: Re: KCC consultation on lighting ends tonight (30/11/2015)
Post by: MarkS on Dec 01, 2015, 06:17:28
Quote from: JonC on Nov 30, 2015, 16:04:45
Just spotted this
http://consultations.kent.gov.uk/consult.ti/streetlighting/consultationHome

One option is to go back to all night lighting once LEDs have been installed.

I fear that is exactly what they will do.  It is more difficult to use energy saving as an argument for switch-off when they are using LEDs.

I will be closely monitoring my sky quality as the switch-over begins - looking at overall brightness and spectral balance of the light pollution.  I really hope they use designs with no upwards and sideways spillage - it's something I mentioned in my submission. 

I recently went along the A20 near Sidcup in daylight and at the Fiveways junctions they had left their new LED lights illuminated for some reason.  I found them dazzling even in broad daylight - what on earth are they like at night? Maybe it's just my old eyes :( In any case, dazzle and glare is something else I mentioned in my submission.

Mark
Title: Re: Kent County Council consultion on LED street lights
Post by: Carole on Dec 01, 2015, 09:23:31
The other evening I was driving my son and partner in the early hours from Crockenhill to Farnborough Hospital and they were complaining about the street lights being turned off after midnight saying they can't see where they are going and why do they do it? 

Apart from saying it was to save money I decided not to put a case forward and cause any argument since she was in labour at the time!!!!  But it's interesting to get the perspective of some-one not interested in Astronomy.

Carole
Title: Re: KCC consultation on lighting ends tonight (30/11/2015)
Post by: Rick on Dec 01, 2015, 09:25:51
Quote from: MarkS on Dec 01, 2015, 06:17:28I found them dazzling even in broad daylight - what on earth are they like at night? Maybe it's just my old eyes :(
They're intrinsiclally that much brighter, at least in terms of light per unit area of emitter, than any of the previous street-lighting solutions. It ought to be possible to direct that light better, but so far I've seen far more poorly installed LED streetlights than well-installed ones. Far too often you can see the LEDs directly from twice as far away as the lamp concerned needs to illuminate.
Title: Re: Kent County Council consultion on LED street lights
Post by: Carole on Dec 01, 2015, 16:00:56
I thought some-one said that the brightness can be turned down, is that not the case?

Carole
Title: Re: Kent County Council consultion on LED street lights
Post by: Rick on Dec 01, 2015, 18:28:15
In theory they are a bit more adjustable than old lights. In practice, they seem to be installed at default settings, and never adjusted, as some of the horrors around orpington and Locksbottom illustrate...
Title: Decision on Kent Streetlights
Post by: MarkS on Feb 14, 2016, 09:42:52
The consultation on Kent streetlighting showed 63% of respondents preferred all-night lighting.

Hence all street lights will be switched back on permanently once they have been converted to LED.  Ashford is in phase 1 (March-July 2016) so I'm going to find out pretty quickly what is the effect of LED streetlighting.

Does anyone want to buy some secondhand (useless) light pollution filters?   :(

Full results of the consultation are here:
https://democracy.kent.gov.uk/documents/s62218/

Mark
Title: Re: Decision on Kent Streetlights
Post by: Carole on Feb 14, 2016, 11:18:20
Bummer. 

QuoteDoes anyone want to buy some secondhand (useless) light pollution filters?   :(
Got some of my own.

Carole
Title: Re: Decision on Kent Streetlights
Post by: The Thing on Feb 14, 2016, 14:31:41
Double bummer. That's why I haven't been to complain about my local streetlights, I would rather have a filterable problem than a lovely 'white' but better aimed LED replacement (bound to happen sometime though).
+
Just looked LED Streetlights on WikiPedia (https://en.wikipedia.org/wiki/LED_street_light) and it appears the emitted spectrum changes with time as the phosphorescent coating degrades. Nightmare!
Title: Re: Decision on Kent Streetlights
Post by: Fay on Feb 14, 2016, 17:57:48
Not only the weather against us!!!!!!
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: Rick on Feb 14, 2016, 19:24:49
Quote from: MarkS on Mar 30, 2014, 18:40:59Ashford B.C. have realised that they have some of the darkest skies in the South East
Ho hum. That won't last long, I fear. :(
Title: Re: Switching streetlights off late at night, or not...
Post by: Carole on Feb 14, 2016, 19:52:22
Hasn't Woodchurch applied for dark sky status and building an observatory, or did I get the location wrong?

Carole
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: MarkS on Feb 14, 2016, 20:00:31
Quote from: Rick on Feb 14, 2016, 19:24:49
Quote from: MarkS on Mar 30, 2014, 18:40:59Ashford B.C. have realised that they have some of the darkest skies in the South East
Ho hum. That won't last long, I fear. :(

Let's see what happens.  It all hinges on the design and spec of the new luminaires Kent is installing ...

Quote from: Carole on Feb 14, 2016, 19:52:22
Hasn't Woodchurch applied for dark sky status and building an observatory, or did I get the location wrong?

Carole

Yes that's true.  I imagine that any dark sky status might now be totally dependent on what Kent County Council does with its streetlights.

Mark
Title: Re: Ashford Borough Council consulting on possible light pollution policy
Post by: Rick on Feb 14, 2016, 21:45:03
Quote from: MarkS on Feb 14, 2016, 20:00:31It all hinges on the design and spec of the new luminaires Kent is installing ...
I hope they don't pick the same sort of rubbish luminaires Bromley's been using...