Loading...
Agenda 06/29/2016 PELICAN BAY SERVICES DIVISION Municipal Services Taxing & Benefit Unit NOTICE OF PUBLIC MEETING WEDNESDAY, JUNE 29, 2016 THE LANDSCAPE & SAFETY COMMITTEE OF THE PELICAN BAY SERVICES DIVISION WILL MEET AT 1 PM ON JUNE 29 AT THE COMMUNITY CENTER AT PELICAN BAY, LOCATED AT 8960 HAMMOCK OAK DRIVE, NAPLES, FLORIDA. AGENDA 1. Call to order 2. Pledge of Allegiance 3. Agenda approval 4. Approval of Landscape & Safety Committee 03/28/16 minutes 5. Audience comments 6. Administrator's report a. Waterside Shops sidewalk project— are extra poles needed? 7. Pelican Bay street light project presentation and discussion a. County/state requirements b. Consultant's report i. L&S Committee concerns: pedestrian & vehicular safety is #1/our questions: (1) Do we need more light poles to satisfy safety and/or legal requirements? (2) LED vs. metal halide bulbs (3) How many long arms will be needed? (4) What trees will need to be trimmed/removed? ii. Are the Commons LED lights consistent with what the Community Lighting Project will use? 8. Chairman's Report a. US 41 berm landscape renovation coordination with the PB Foundation b. CSSC patrols 9. Marion's Report a. *Re-landscaping projects 10. Committee member comments/new business 11. Adjournment * indicates possible action item ANY PERSON WISHING TO SPEAK ON AN AGENDA ITEM WILL RECEIVE UP TO THREE (3) MINUTES PER ITEM TO ADDRESS THE BOARD. THE BOARD WILL SOLICIT PUBLIC COMMENTS ON SUBJECTS NOT ON THIS AGENDA AND ANY PERSON WISHING TO SPEAK WILL RECEIVE UP TO THREE (3) MINUTES. THE BOARD ENCOURAGES YOU TO SUBMIT YOUR COMMENTS IN WRITING IN ADVANCE OF THE MEETING. ANY PERSON WHO DECIDES TO APPEAL A DECISION OF THIS BOARD WILL NEED A RECORD OF THE PROCEEDING PERTAINING THERETO, AND THEREFORE MAY NEED TO ENSURE THAT A VERBATIM RECORD IS MADE,WHICH INCLUDES THE TESTIMONY AND EVIDENCE UPON WHICH THE APPEAL IS TO BE BASED. IF YOU ARE A PERSON WITH A DISABILITY WHO NEEDS AN ACCOMMODATION IN ORDER TO PARTICIPATE IN THIS MEETING YOU ARE ENTITLED TO THE PROVISION OF CERTAIN ASSISTANCE. PLEASE CONTACT THE PELICAN BAY SERVICES DIVISION AT (239) 597-1749 OR VISIT PELICAN BAYSERVICESDIVISION.NET. 06/22/2016 10:16:19 AM PELICAN BAY SERVICES DIVISION LANDSCAPE & SAFETY COMMITTEE MEETING MARCH 28, 2016 The Landscape & Safety Committee of the Pelican Bay Services Division met on Monday, March 28 at 11:00 a.m. at the Community Center at Pelican Bay, located at 8960 Hammock Oak Drive,Naples, Florida 34108. The following members attended. Landscape & Safety Committee Ken Dawson Joe Chicurel, Chairman Scott Streckenbein Tom Cravens Gary Ventress Pelican Bay Services Division Staff Mary McCaughtry, Operations Analyst Neil Dorrill, Administrator Lisa Jacob, Associate Project Manager Marion Bolick, Operations Manager Barbara Shea, Recording Secretary Also Present Neal Bohannon, Collier County Sheriff's Office Susan O'Brien, PBSD Board APPROVED AGENDA (AS AMENDED) 1. Call to order 2. Pledge of Allegiance 3. Agenda approval 4. Approval of Landscape & Safety Committee 02/22/16 minutes 5. Audience comments 6. Administrator's report a. Evaluation of pathway lighting 7. Marion's Report on ongoing projects and FY2017 anticipated needs and projects 8. Landscape& Hardscape Survey of Pelican Bay update and discussion 9. Information and discussion on"3 Foot Passing Cyclists"traffic signs 10. Old business a. Resident complaint about Pebble Creek Crosswalk b. Extra Sheriff's Office patrols—February Statistics Report (add-on) 11. New business a. Resident complaint about street signage at Crayton and Pelican Bay Blvd. 12. Adjournment ROLL CALL All members were present and a quorum was established 1 Pelican Bay Services Division Landscape & Safety Committee Meeting March 28,2016 IT WAS NOTED THAT MR. DORRILL WAS NOT PRESENT AS HE WAS ATTENDING A TDC MEETING; HE ARRIVED AT 10:25 AM. AGENDA APPROVAL Mr. Cravens motioned,Mr. Dawson seconded to approve the agenda with the addition of a discussion item "Extra Sheriff's Office patrols—February statistics report" as Item#10b. The motion carried unanimously. APPROVAL OF 02/22/16 MEETING MINUTES rMr. Cravens motioned, Mr. Dawson seconded to approve the 02/22/16 meeting minutes as presented. The motion carried unanimously. AUDIENCE COMMENTS None ADMINSTRATOR'S REPORT EVALUATION OF PATHWAY LIGHTING Mr. Dorrill brought up the need for discussion on a quote of$6,500 from Agnoli, Barber &Brundage for a pathway lighting study on roads with existing lighting. Mr. Cravens motioned, seconded by Mr. Dawson, "to recommend to the full PBSD Board that we do a pathway lighting study for those areas that currently have pathway lighting"which he subsequently withdrew. Staff will obtain additional information regarding areas included in the quote, and provide the information to the budget committee for review. MARION'S REPORT ON ONGOING PROJECTS AND FY2017 ANTICIPATED NEEDS AND PROJECTS Mr. Bolick reported that his plant replacement project is 95%complete. Future FY16 projects will include re-landscaping of some of the cul-de-sacs as well as the area in front of the Marbella. Mr. Bolick briefly described his requested increases in the FY2017 to include (1) additional temporary labor for irrigation and pruning, (2) additional chemicals, (3) an increase in mulching to twice per year, (4) an additional vehicle for an expanded irrigation crew, (5) additional tree trimming, and(6) additional temporary labor to plant annuals. LANDSCAPE & HARDSCAPE SURVEY OF PELICAN BAY UPDATE AND DISCUSSION Dr. Chicurel reviewed and summarized the landscape & hardscape survey and audit to be completed by the committee members. Each committee member will walk an assigned section of Pelican Bay with one resident, recording deficiencies and suggestions to the current landscaping and hardscape observed, using the checklist provided as a guide. The committee's goal is for the survey to be completed prior to the summer. INFORMATION AND DISCUSSION ON "3 FOOT PASSING CYCLISTS" TRAFFIC SIGNS Ms. Jacob reported that"3 foot passing cyclists"traffic signs are optional and each new sign would require County permits and cost approximately$900 - $1200. Dr. Chicurel requested 2 Pelican Bay Services Division Landscape & Safety Committee Meeting March 28, 2016 that Sgt. Bohannon contact cyclist leaders to discuss the laws relating to cyclists. No further action was taken by the committee. OLD BUSINESS RESIDENT COMPLAINT ABOUT PEBBLE CREEK CROSSWALK Ms. Jacob reported that she is researching traffic standards regarding crosswalk sensors and is waiting for additional information from Mr. Jim Carr, of Agnoli, Barber& Brundage. EXTRA SHERIFF'S OFFICE PATROLS—FEBRUARY STATISTICS REPORT Dr. Chicurel summarized the February "Extra Sheriff's Office patrols report" which included 48 warnings for speeding, 38 warnings for stop sign violations, and 3 citations for stop sign violations. Extra patrols will be discontinued on April 1. NEW BUSINESS RESIDENT COMPLAINT ABOUT STREET SIGNAGE AT CRAYTON AND PELICAN BAY BLVD. The committee discussed the street signage at the intersection of Crayton and Pelican Bay Blvd. and by consensus agreed that the intersection did not warrant an additional sign. Ms. O'Brien volunteered to respond to the resident who requested additional signage at this intersection. MR. DORRILL REPORTED THAT THE COUNTY HAS ISSUED A LETTER OF INTENT TO A DREDGING CONTRACTOR TO DREDGE CLAM PASS AT AN ESTIMATED COST OF $489,000. ADJOURNMENT IThe meeting was adjourned at 12:15 p.m. I Joe Chicurel, Chairman Minutes approved [ 1 as presented OR [ 1 as amended ON F 1 date 3 Z:\Acture Projects\A\Amis-Waterside Sitlawalk Ezt\DWG\Site Civil\Sftaettilea\C-00.20-Aedal Fluces.da0(00.20)danna.wnndward inn 16.2016-8:27am w � mmx DC4 00 mjm i D 03 / 0112OO1)d 3tj o DM3OOIN ,4, . ,. ...,..,„ , :: , .. .. ." / _,,,,00,,,,, --,..e7,,,,,,,.7.5::::71:::::10_1:7;;‘,.. .3,,„:.:1,..,,i,,,,4riri,:i,ill,,,Ii..,,,: ..,,,:::„..,,,;,,,,.::**:-::, :14,;2,.....,,,,:,,,,,1,*"..4,:i,.,, ,rtier,,v,,,Isaiii,:„.,,,' t „ .. , MYRA JANCO DANIELS BLVD. PUBLIC Q M C.) D C • ,0 M m y �' yr- _� p �# n 73 I m I 1 \ CD mD 1 \ .7.:-..„. -0 DO0 comp \ m \ o --4cn `. > O -v Dw /T Z#V3HV 133CObd 4'7MYRA JANCO DANIELS BLVD. PUBLIC Z#VA?id LOACOdd m__, ; D • F ml r x=. � D 1--) ,J ' � C7 o —`z—� c oo :U Z7 –I 2 W i- mI � Ocn • o D co O (7 � � Dnm O m o �� n z m D(63 g fir" m , o- D o g m oD m p .g,., + 0Hm cn t a 1 O TAMIAMI TRAIL(U.S.41). r, ,. .` -* ` PUBLIC ,,,..„ r „ , ,., .. ,,y, _„ .„ . „,.. „ , ,. ,, , . ........?„. ,,..,, ......„ , . O m ..„.„.,,,,, ,, , c-) ,.. . _.,H m , ,,, $'w. w n mJAW PROJECT: CLIENT REVISIONS = ARTIS NAPLES TO WATERSIDE DESIGNED BY C7 mg SHOPS SIDEWALK CONNECTION WATERSIDE SHOPS DRAWN BY. D Omgo 5415 TAMIAMI TRAIL N CH CKEDBY: '4 m)� DAVIDSON SHEET TITLE NAPLES,FL 34104 O. ENGINEERING m m 4365 Radlo Road,Suite 20, PROJECT NO.: N mob Naples,Florida 314,04 AERIAL VIEW 16-0009 0 A W a P'.239434.6060 F:239'1 39.434.6084 5/16tt6 1ST F,Rsr SUBMITTAL �°' Company Cert.of AutM,2aaon Na Ooa09496 REV. DATE. DESCRIPTION 2A,Aetive Projects\A\Artie-Waterside Sidewalk Ext\DWG\Site Civil\Sheet/Iles\C-10.00-ExlsBng Conditions.dwg(10.00)Jenna.Woodward Jun 16,2016-8:28om X_ g 112,6 mr A yyDp =; tmm I<.1 �g OX f =mP Z ZO 2 ,,, rI0/� �H ��p ZX ,mW xe A Vlpp Z� Ovrj ' np m=o o5� a0 twty OSA pa mm - ,. Ike czj cT m o flUfi no 2FA-13 ▪ im %vim"a\\ ...w.....r.,r...*/W....«...•. .,.,,«... -,% O 'SY, sow, ., ,�.r z-cza i '' '' p ano 33 EI . ► ly 9 \ x • +rwtyN= oA- �Q . VIVI� �& W: =.: o"a o 4.vg ooiZcvz � ,, rp q(q;5 • OnOAOm _� �mo l e • ;6 Q gr_m N � cynu� `, , _ ''�,, „Of/MOO/ASV l oxtiiiii.0 \ <„, B= I rk �� x / 7 7 I ° '- +'� ` z n o r2r e-,s,q.o,_�•...-ir-re�Ti, xNv o 10 i I -<N 7:i2 m O 02 O a v_ q Z I ( aLTa A O CD . o p � mm l m m i g 01,,, \ 'dJ vo Fm I oa 4 i §5zz• m 2, \ 0 O , AO A >�QoA m m �Z� > Dm A mAprm 6 P Zy O A 1 �m rp0�.loaD� ,, / \ a•`, x Om� \ 1 V6A C,oZ0 \ tt • O>pm I� Z pn '', /:: z C32p . � ��"(�.• 4f Y• f aV yY is3£- &#. :a y. OOH C-FC � ,:,-, y D�'I .' `cps n -� � �' •i sstzogi �F `� - :7:::JANCO DANIELS BLVD � "' Queue . ..wb`'" * t .i . f ' #V 113'02Id - c 'F 7t lii n ''� a D � -0 Cn rn �,TTT � � o agcy Tt - Z n 4 MM gr� r a - Y off; > % • gi A w .,Y Y (o�p _ yi fL � w. r r 4#5 I6 .. (, , W *,„ _A •V p Y�ye„, ,a' ' F''N Vo0 _*ag no .oc F -4 el m "g2 TAMIAMI TRAIL(U.S.41) Z� +^+ • ZD : o PUBLIC tOrt- I I 2d,; m to cs - I rDC� 5gC7 CBZz i N ® ® Opl NNOCOaNOO9 (I) mmOmmmom =mmm.m.w mmm z z m z z z z z zzzzzlcA74` IF PiUPOZO 0 0 0 0 N m0 0 0 0 0 m mgNhlHKpD dll T :=41,'Q � qd 6Z(Dn O T mNN m) O F, p '4'%` NDO o<V !i_'' ,M�1 NrA H 1-, gr, 2TTygZAO~NW T • mmm : iym B D m J A U 2 AT < 3 A y T.',9441410 _ ). 0 C 2 ' r:' = z a u ,m0 I_O � lIA. `' . � p m 5ti 'O on l �ro IVll J D m ? D � 6 Az= aZ> o Omym. 4 W o z e O Z zap PROJECT' CLIENT: REVISIONS , m `g§^ ARTIS NAPLES TO WATERSIDE DESIGNED BY: () kms SHOPS SIDEWALK CONNECTION WATERSIDE SHOPS DRAWN BY: _,0 05415 TAMIAMI TRAIL N JAW .. DAVIDSON CHECKED BY: O'' -o9 ENGINEERING SHEET TITLE NAPLES,FL 34104 • 5mm 4365 Radio Road,Suite 201 EXISTING CONDITIONS AND PROJECT NO.: :? O mea Naples,Florida 34104 CLEARING PLAN 160009 §- P:239434.6060 F:239.434.6084 vtsns 1ST FIRST SUBMITTAL DESCRIPTION PiCompanyCa.at ANrIorBabon No.00009496 ,REV. DATE: 2;\Adive Projects\A\ArOe-Waterelde Sidewalk Ext\DWG\Site CIWI\Sheetfleo\C-20.00-Master Site Plan.dwg(20.00)Jenna.Woodword Jun 16.2016-6:29am 1r5-rt Q f�� I5A mm 8 r_ el NF — — — — . _� ow i _ / -_ -6_ ..a te ! fii 1111,1111 � 1Z- - -- — — ii I �� _ N 'r 88r• • 6„,,.„, . .: ,..®•• - _ min '�smo a Fob'a' 4001166-_;- _,// . 41, ., :,- ___-- _ .• .. A .•/ . A\- _ ___ qr a' a / / 8S2 f Erg8Q 45 mi 6-----'-- - g.� , I I I rEII gI g ---c m =---Ii _5 gig— — / � � w9 $� �m• '-- �m $` • . EXIST.ASTALT PATHWAY g % o Gft iz AF, ,-,.,f. � s���:.�; r : 6$.' IDLYmLr,.... .r � � O Tr �, �� mnf .. I °9RI: I JI o r� O \x,DEANz mPIOZ 1 c_m-I m yc�v O I '/I�I r rm�m�pLrr'Arciy<prgl �mrPil�fa9g I I -I $ °P-`z"i ��'�' � SND r 6 ! o O O �� 41 1 DT DMp1 33c0 -0 *O Opm Dyym -f0 Z V D o N Si- 1 v i Q N 8O 33mANzp2O !•ItN.Itmi- -^ O m m Z o E70Sf;9D�WA[R.Tr..• '. zz,, [[ m r.11 c) f •� m z In !^GGyyyA GI ; p v •' 7o B E4 I A .AOAO .9 fsA-.AD22 /rP,—I O _-- �� I el 8$ A° M D �1 o,tq,p,F N~per pAmm'li v, Z ; p Z < ' _- --' i mo cE`m * o PAcTrmppmm ^AA2.T,..6x2i pp A 1 N 0;; 'l € ` , ;El yyypt g ri' tOT!” §I C O m % C-1. v,DA l rel ;TSI UZdhZ 0 „ 2 \ m <8 f� f + $9 ',9 ^vgi , o: p c m Dai Ag I N -i m�2 OO DN 9FmmrpO 9 >Em° \ o v 'y zo omNom� ®g''4 \ O '��� 1. v �� mm �z pS�KNy m4. zm� pow '�mp om yp � m A� mD �S \\z \�\ '��- vf� Am om� mo LnopA s2O '\1 N m'�- 33 Z 00 nm_GO PI Dom o� "FF O - O �m BE mQ z 4‘ e O po \ m ti m fpi„ zA 3oQ[� \ Om 9 yy rzr m0 rm i'VTI g L.) \ K £ Z tmn -QZ ym-.y Z !'. / in O � pmc \ C N � O mp�� m ,//I \ m P Om O /' m O F' c ///rrr N o II 24 Z#dHv loroHd •r� 1 �� `�° Ls g �a � , 91 'SII `'-` \i � h�4') MY 1 "s r r -.. esk hvx.-. s.lit aU< gp " ni d� Z#V &1011gar 02Id • VI o t Cn mIo II i m p III imimiiiiii::] Oml • N ZmZ � AIII Dm m o� > (1 71 7* S49 * 7f - co g ,s['- * III S g: k C C7 �I Cn ,_ �.. D m _+ D ( 11 I ( SIN I a w RI N / I) I I -.,a'•, • III TAMIAMI TRAIL(U.S.41) * IIS r go. i PUBLIC S o R: p' n �zA III I----- I " 9 yy D _=m,_ -I' sgi s 3 II adI AlcC mm N I 11 --- 1 N. M 4-0-3' - A[ U 2d_ n —I Er9 III m�6 it,,-1.11- NI Aon m Rg° 11r ' NI 9 D I Ilj Y W I1i \ CLIENT r REVISIONS N" PROJECT: m gym ARTIS NAPLES TO WATERSIDE DESIGNED BY JAW m 2g SHOPS SIDEWALK CONNECTION DRAWN BY: -im< WATERSIDE SHOPS JAW [ z $0 5415TAMIAMI TRAIL CHECKED BY: S N P m = DA I N E E RING SHEET TITLE NAPLES,FL 34104 4365 Radio Road,Suite 207 Q05 Nadea,Florida 34104 MASTER SITE PLAN PROJECT NO.: 1 it O 8 i w P:239.434.6060 F:239.434.6064CD 6i^ 160009 5/1E5/1E06+ s IST FIRST SUBMITTAL Company Cart.of Authorization No.00009496 ,.REV. DATE: DESCRIPTION r Z:\Active Projects\A\Artis—Waterside Sidewalk Ext\DWG\Site Civil\Shoetrees\C-21.00—Master Drainage Pian.dwg(21.00)Jenna.Woadward Jun 16,2016—8:31om Q 4 `W 4 °,1 °w C . •.-% ' Y,-.i• \:%. '' V ,t7;,'-, -4f A "Aril rAil P2 P 111 rAll rirt d POE v -;,',' ,---%, ,.;-.;,:7"411,. *Ifil,-.A., p• ty, -0:::_,PrA, - - 19::_e_4_____.:i ,61 - - - „,,,, r.� % % "� p, „ Y••EXIST.ASPHALT PATHWAY t * * . � �� ' Q, tlit ��Qil.`*'w •� w ��♦Mg ,, • ,,,,,, '''•° ---"` * e '0 lir° '''. 1 S ',ft , '''' : ' -a 0 0 ., II D OmoA°No D i. O + z Y- zA ±¢..' *. D(ISY.SSID(:WAQ( ---'n'- _` > 73 ,,,,,„00 ,V , V1 M y yZ D m •' I Q D a�E�imz M DIY _~ ,z NUM ° X _ _%_____- m U ��m 'ODO m p > ADZ ply I 0 9RC N NZOm F., ‘1,, to ° P 41 II !. cmczi. ir z m €1. •ti 1 c4 °9m-zi Arn2. Z 'DLII iOI P zi�o zym Q � z 2 0°°y � m / ® nz0 °DSm Cn. O ■ rl 1 Ill ''1 \ 0mmo=,o f �z v 1Y mem g7" 'dud gar \ ' 4z \ .,w ")/ \ /...- \ ,�� \ c$ y- i'./ � ' _- r V , I-3. AE32/ 4 \ v 44, 0 0 .4 z#VIHd 1031OHd N / MYRAJAN O DANIELS BLVD *I q , —� = J I I ¢ t a • *ill11 I z#d i 10A road NI ft'— o 111 oy . C_ ,,. ifi. I co —I r-"303 ,071 A LL41 1 _ DC) m D PkP1 •°(VD y _ y D/ a Ny T—f Asir 61 Iw i. j. � "w a 7t ' } I� " TAMIAMI TRAIL (U.S. 41) sot PUBLIC E� * tis' I �V _�,,„ 4 AI 1 w S � ten. 4 9_ �,. F I . A 8 m Z I o �►—z_— Elm '_J It 1J< I I 0 A CLIENT e REVISIONS "' PROJECT = i m \ DESIGNED BY: M ARTIS NAPLES TO WATERSIDE JAW C) ims SHOPS SIDEWALK CONNECTION WATERSIDE SHOPS DRAWN BY: N O DAVIDSON3g 5415 TAMIAMI TRAIL N JAW CHECKED BY: 8 SHEET TITLE NAPLES,FL 34104 O ,'6 ENGINEERING 4365 Radio Road,Suite 201PROJECT NO.: rr Napes,Florida 34104 MASTER DRAINAGE PLAN 16-0009 0 1� P:239.434.6060 F:239.434.6084 50606 1ST FIRST SUBMITTAL Company Cart.of Authoreation No.00009496 sREV. DATE: DESCRIPTION ' LED streetlights: Doctors issue warning - CNN.com Page 1 of 5 M Health + Live TV By Richard a "Bugs" Stevens, The Conversation THE CONVERSATION © Updated 2:00 PM ET, Tue June 21, 2016 Mb IL .....r .... ., ..„ . . ,r r e,. INP . * ' it '4 • . °' .,iit . l':4i. . ' At < . 1 R \ ::::: „ :1,—„,41„, \sx, 4 i . :„.„,,,,,„, ,,,,,,., ,,,,..,,,,.,,, : 1 ,,,,,,,w,'AL.-41',Photos: Los Angeles LED streetlights The Sixth Street bridge over the Los Angeles River looks a bit different with old, left, and new 1 of 5 The American Medical Association (AMA) has just Story highlights adopted an official policy statement about street lighting: cool it and dim it. The American Medical Association urges communities to minimize health and The statement, adopted unanimously at the AMA's annual meeting in Chicago on June 14, comes in environmental risks response to the rise of new LED street lighting sweeping the country. An AMA committee issued guidelines on how communities can choose LED http://www.cnn.com/2016/06/21/health/led-streetlights-ama/index.html 6/29/2016 LED streetlights: Doctors issue warning - CNN.com Page 2 of 5 �(\(y� Health + Live TV ������ Municipalities are replacing existing streetlights with efficient and long-lasting LEDs to save money on energy and maintenance. Although the streetlights are delivering these benefits, the AMA's stance reflects how important proper design of new technologies is and the close connection between light and human health. The AMA's statement recommends that outdoor lighting at night, particularly street lighting, should have a color temperature of no greater than 3000 Kelvin (K). Color temperature (CT) is a measure of the spectral content of light from a source; how much blue, green,yellow and red there is in it. A higher CT rating generally means greater blue content, and the whiter the light appears. A white LED at CT 4000K or 5000K contains a - high level of short-wavelength blue light; this has been the choice for a number of cities that have ,*1404 11, _ recently retrofitted their street lighting such as ' � o Seattle and New York. " L Explainer: What is seasonal affective disorder'? But in the wake of these installations have been complaints about the harshness of these lights. An 74, �"�� ���� extreme example is the city of Davis, California, where the residents demanded a complete Related Article: Apparently This Matters: replacement of these high color temperature LED street lights. L.A.'s fancy new streetlights Can communities have more efficient lighting without causing health and safety problems? Two problems with LED street lighting An incandescent bulb has a color temperature of 2400K, which means it contains far less blue and far more yellow and red wavelengths. Before electric light, we burned wood and candles at night; this artificial light has a CT of about 1800K, quite yellow/red and almost no blue. What we have now is very different. The new "white" LED street lighting which is rapidly being retrofitted in cities throughout the country has two problems, according to the AMA. The first is discomfort and glare. Because LED light is so concentrated and has high blue content, it can cause severe glare, resulting in pupillary constriction in the eyes. Blue light scatters more in the human eye than the longer wavelengths of yellow and red, and sufficient levels can damage the retina. This can cause problems seeing clearly for safe driving or walking at night. You can sense this easily if you look directly into one of the control lights on your new washing machine or other appliance: it is very difficult to do because it hurts. Street lighting can have this same effect, especially if its blue content is high and there is not appropriate shielding. http://www.cnn.com/2016/06/21/health/led-streetlights-ama/index.html 6/29/2016 LED streetlights: Doctors issue warning - CNN.com Page 3 of 5 CM Health + Live TV ,= vvv content of light --that is, how much of each , ,. wavelength is present. It's designed specifically for light that comes off the tungsten filament of an incandescent bulb. kF . , New atlas shows extent of light pollution; what does it mean for our health? However, the CT rating does not reliably measure color from fluorescent and LED lights. Related Article: Full moon may disrupt Another system for measuring light color for these sources is called correlated color temperature sleep, study says (CCT). It adjusts the spectral content of the light source to the color sensitivity of human vision. Using this rating, two different 3000K light sources could have fairly large differences in blue light content. Therefore,the AMA's recommendation for CCT below 3000K is not quite enough to be sure that blue light is minimized. The actual spectral irradiance of the LED -- the relative amounts of each of the colors produced -- should be considered, as well. The reason lighting matters The AMA policy statement is particularly timely because the new World Atlas of Artificial Night Sky Brightness just appeared last week, and street lighting is an important component of light pollution. According to the AMA statement, one of the considerations of lighting the night is its impact on human health. In previous articles for The Conversation, I have described how lighting affects our normal circadian physiology, how this could lead to some serious health consequences and most recently how lighting the night affects sleep. In the case of white LED light, it is estimated to be five times more effective at suppressing melatonin at night than the high pressure sodium lamps g. (given the same light output)which have been the 6 th a A F t mainstay of street lighting for decades. Melatonin suppression is a marker of circadian disruption, which includes disrupted sleep. A dark night is good for your health d Bright electric lighting can also adversely affect wildlife by, for example, disturbing migratory http://www.cnn.com/2016/06/21/health/led-streetlights-ama/index.html 6/29/2016 LED streetlights: Doctors issue warning - CNN.com Page 4 of 5 caNKI Health + Live TV Street lighting and human health The AMA has made three recommendations in its new policy statement: First, the AMA supports a "proper conversion to community based Light Emitting Diode (LED) lighting, which reduces energy consumption and decreases the use of fossil fuels." Second, the AMA "encourage[s] minimizing and controlling blue-rich environmental lighting by using the lowest emission of blue light possible to reduce glare." Third, the AMA "encourage[s] the use of 3000K or Join the conversation lower lighting for outdoor installations such as roadways. All LED lighting should be properly shielded to minimize glare and detrimental human See the latest news and share your comments and environmental effects, and consideration with CNN Health on Facebook and Twitter. should be given to utilize the ability of LED lighting to be dimmed for off-peak time periods." There is almost never a completely satisfactory solution to a complex problem. We must have lighting at night, not only in our homes and businesses, but also outdoors on our streets. The need for energy efficiency is serious, but so too is minimizing human risk from bad lighting, both due to glare and to circadian disruption. LED technology can optimize both when properly designed. Richard G. "Bugs"Stevens is a professor in the School of Medicine at the University of Connecticut. Copyright 2016 The Conversation. Some rights reserved. l', , --21,-, V A. a ' . , „ _ ,,, ,..,, ,,,,_.. k,. \ _ w 3= ,,, .. _ „ > „.,., P, -: t V. sat-U ,\ <'� — Can you get Zika twice? • ..4.,Ai ii,,viii,, ;34, rort, http://www.cnn.com/2016/06/21/health/led-streetlights-ama/index.html 6/29/2016 PBSD RELANDSCAPING 38000 PLANTS AND SOD 2400 SOIL 3700 PINE STRAW 2500 RENTAL EQUIPMENT 22000 TEMPORARY HELP 12800 ESTIMATED IRRIGATION 9150 TREE WORK 90550 CUL DE SACS BOBWHITE TAMARIND KILLDEER HOLLYBRIAR (2) WHIMBREL KNOLLWOOD TEAL TALLOW TREE BENTWOOD EAST BENTWOOD WEST SLASH PINE BUTTON BUSH BAY TREE KINGBIRD LAKE VISTA ARROWHEAD PINE SIDE EAST PINE SIDE WEST WILLOWWOOD EAST WILLOWWOOD WEST PINECREEK EAST PINECREEK WEST TURKEY OAK EAST TURKEY OAK WEST SHADOW LAKE EAST SHADOW LAKE WEST WOODHAVEN PITCH APPLE EAST PITCH APPLE WEST