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[DSLF] Digest Number 565
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There are 9 messages in this issue.
Topics in this digest:
1. Re: DOT and FCO lighting
From: Bob Parks <bparks@volt...>
2. Hot LP Update for NY
From: Steve Davis <w2sgd@juno...>
3. Re: DOT and FCO lighting
From: Dave DeSantis <silverliner_12@yahoo...>
4. Laurel Highlands Star Cruise - 2002
From: "Terry N. Trees" <TNTrees@BellAtlantic...>
5. Re: Rochester Democrat & Chronicle Column
From: Kevin Conod <kdconod@optonline...>
6. Reminder - DarkSky Online Conference
From: DarkSky-list
7. Re: Rochester Democrat & Chronicle Column
From: saros61@aol...
8. Re: Seasonal Affective Disorder
From: "doesper" <DaveOesper@aol...>
9. costs (fwd)
From: Jan Hollan <jhollan@amper....muni.cz>
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Message: 1
Date: Sun, 27 Jan 2002 09:43:34 -0500
From: Bob Parks <bparks@volt...>
Subject: Re: DOT and FCO lighting
Paul,
The "myth" that you refer to is based on an IESNA RP-8 standard for average
illumination. The RP-8 recommends installation of poles/fixtures to achieve
a 6 to 1 average illumination ratio. Switching from a SCO to a FCO fixture
normally will increase this ratio for two reasons. The intensity of
illumination directly below the fixture will increase, and the intensity of
illumination between the fixtures will decrease somewhat. If the lamp in the
fixture is reduced in wattage, so as to produce the same average
illumination provided by the SCO fixture, the ratio is reduced somewhat but
it is still difficult to meet the RP-8 specified 6 to 1 ratio using the same
spacing for the SCO fixture.
This is the one argument that most DOT engineers use in their fight against
conversion to FCO. But if you drive on a roadway that has undergone a FCO
conversion, you will be amazed at how unimportant this ratio really is
compared to the reduction of glare.
However, as long as IESNA continues to specify this ratio, proponents of FCO
have the difficult task of convincing lawmakers/DOT engineers that glare
reduction is more important. At some point it seems like we need to convince
IESNA to revisit this ratio in the RP-8.
Bob Parks
Executive Director
Virginia Outdoor Lighting Taskforce
VOLT.ORG
If you lit your house with bare 250 watt bulbs and no shades, people would
call you crazy. But if you do it outside, they call you a DOT Lighting
Designer.
On 1/27/02 5:10 AM, "DarkSky-list@yahoogroups..."
<DarkSky-list@yahoogroups...> wrote:
> Date: Sat, 26 Jan 2002 12:46:44 -0800
> From: Paul Greenhalgh <fvas@shaw...>
> Subject: Re: DOT and FCO lighting
>
> Cliff is there anything available that show's (from space) a before and
> after shot of Washington State? Now that would be something to look at.
> Thanks for that link by the way, definitely interesting and helpful in
> future conversations with those in Governmental positions.
>
> The only trepidation I have about FCO lighting is this "myth" that more
> light is necessary, such as pole placements. Personally I think that there
> is no need to add MORE lights to what is already in place. I think that more
> lights being installed is an attempt to satisfy a false sense of proper
> lighting or security. Am I way out in left field here or what? It seems to
> me that initially once FCO lights are installed there is this rational that
> what is not seen, (Glare, or fixed point of light, or observable light)
> causes the rational to install more FCO lights to compensate. Where
> compensation is not necessary, the same result is still there, but to the
> observer there is this need to install more to satisfy the rational of
> perceived common sense.
>
> Such as you see in Washington state, where they have opted to put a light on
> almost every pole. This to me seems to be excessive to my way of thinking,
> and completely defeats the point of saving energy.
>
> Your thoughts? Or for that matter anyone's thoughts?
>
>
> Clear Skies!
> _________________________________________
>
> Paul Greenhalgh (Director)
> Fraser Valley Astronomers Society
> British Columbia Canada
> http://www.fvas.net
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Message: 2
Date: Sun, 27 Jan 2002 10:34:19 -0500
From: Steve Davis <w2sgd@juno...>
Subject: Hot LP Update for NY
Check my web site. This needs your immediate attention.
Those who show up for the vote control the destiny.
I have but one vote to give.
Steve, w2sgd@juno...
Dark Skies for the Adirondacks
http://www.timesunion.com/communities/darksky/
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Message: 3
Date: Sun, 27 Jan 2002 09:22:38 -0800 (PST)
From: Dave DeSantis <silverliner_12@yahoo...>
Subject: Re: DOT and FCO lighting
Hello guys,
I have a slight correction for the link Cliff provided
about the states using FCO cobraheads on their
freeways/interstates. I checked out the link and the
map shows California in white which means FCOs are not
used on their freeways. I live here and I know that
this is an error; Caltrans has been using sheilded
lighting on their highways since the 1950s (first with
glaresheilds, then they went to FCO in 1980 or 1981).
And almost everything on their highways is FCO these
days.
Dave
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Message: 4
Date: Sun, 27 Jan 2002 07:11:20 -0500
From: "Terry N. Trees" <TNTrees@BellAtlantic...>
Subject: Laurel Highlands Star Cruise - 2002
Hello,
Because of the bankruptcy of excite@home and their failed negotiations with
ATT, the Laurel Highlands Star Cruise, an annual camp-over star party held
in northeastern West Virginia, USA, recently lost its WebSite space.
However, it's now back-up and running at a new site. And, just to play it
safe, the AAAP has registered a new Domain Name and is now able to offer the
Laurel Highlands Star Cruise WebSite at the easier to remember:
http://www.lhstarcruise.org . Could you please make appropriate changes to
your Bookmarks/Favorites at your earliest convenience? We also encourage
you to pass this information along to your fellow amateur astronomers, to
your fellow club members and to your club's Web Master.
Our standard press release follows:
The more than 540 members of the Amateur Astronomy Association of Pittsburgh
(Pennsylvania, USA) invite you to attend the fourth annual
"Laurel Highlands Star Cruise", June 5-9, 2002. Star Cruise 2002 will be
again held at the DARK sky site of Pinehill Campground, just off I-68 near
Hazelton, West Virginia. Guest speakers, special activities, big
telescopes, kids activities, a food caterer, showers, cabins, RV and tent
camping, a swap table and a fine selection of vendors are planned. Details
are available at: www.lhstarcruise.org
We hope to see you there.
Thank you very much.
Terry N. Trees, Ph. D.
Vice President, AAAP
Chair, Star Cruise 2002 Committee
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Message: 5
Date: Sun, 27 Jan 2002 14:22:30 -0500
From: Kevin Conod <kdconod@optonline...>
Subject: Re: Rochester Democrat & Chronicle Column
> Upstate NY Columnist Mark Hare shows why he'll never get out of small-market media:
>
> http://selene-ny.org/tmp/dandc1.jpg
> http://selene-ny.org/tmp/dandc2.jpg
>
> Charles Fulco
Charles --
Were any letters to the editor printed in response to this column?
--
--Kevin Conod
kdconod@optonline...
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Message: 6
Date: 27 Jan 2002 23:02:12 -0000
From: DarkSky-list
Subject: Reminder - DarkSky Online Conference
We would like to remind you of this upcoming event.
DarkSky Online Conference
Date: Sunday, January 27, 2002
Time: 9:00PM - 12:00AM EST (GMT-05:00)
You are cordially invited to attend and participate in the
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To attend, please sign in to the Forum with your YahooID and
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Message: 7
Date: Sun, 27 Jan 2002 20:48:38 EST
From: saros61@aol...
Subject: Re: Rochester Democrat & Chronicle Column
In a message dated 1/27/02 2:23:28 PM Eastern Standard Time,
kdconod@optonline... writes:
> Were any letters to the editor printed in response to this column?
Yes! At least one very good letter was written...I'll have to find it for
you...don't know the date, but it was last week. Give me a day or two and
I'll try to have it for you.
Charles Fulco
Member, Intl. Dark-Sky Association
Port Chester (N.Y.) Park Commission
914-939-1797
[Non-text portions of this message have been removed]
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Message: 8
Date: Sun, 27 Jan 2002 08:23:12 -0000
From: "doesper" <DaveOesper@aol...>
Subject: Re: Seasonal Affective Disorder
On Wed, 2 Jan 2002 02:43:55 +1100, Greg Crawford <gc@nelsonbay...>
wrote:
>I would have thought that light-at-night would interrupt sleep
>patterns and thus be a cause of depression, or at least a hindrance
>to cure.
It would be interesting to know whether people who regularly get up
before the sun rises are more likely to be affected by seasonal
affective disorder (SAD).
David Oesper
Ames, Iowa
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Message: 9
Date: Sun, 27 Jan 2002 17:53:01 +0100 (CET)
From: Jan Hollan <jhollan@amper....muni.cz>
Subject: costs (fwd)
Fabio and Diego gave me an information on Frosinone, a prime Italian
example. Yvan gave some general values. Still, another examples are
needed. Also, comparison to the bussines-as-usual development (i.e,
benefits of FS luminaires over non-FS ones). Cliff's yesterday post on
Connecticut and Rhode Island DOT attitude is excellent, again, costs are
of interest. And exact luminaire types. I've to demonstrate that switch to
FS is easy and pays off, all ways.
---------- Forwarded message ----------
Date: Sun, 27 Jan 2002 02:47:56 +0100 (CET)
From: Jan Hollan <jhollan@amper....muni.cz>
To: magnitude6@yahoogroups...
Subject: costs
I have to evaluate costs and finacial benefits of retrofitting lighting to
fully shielded one (either at the slow rate of 20+ year lifetime
or alternatively as an offensive measure to reduce LP and power costs).
Can anybody give some examples from reality (America, Italy, Spain,...
apart from Barlovento)? URL or just some numbers by e-mail would do. Small
villages or cities, all are welcome.
This seems to be a key issue for the Senate here in Czechia. Statements
that the second reason of introducing anti-LP laws is conservation of
energy as a rule, that's not enough.
wishing you a sunny Sunday,
jenik
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