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Home My WebLink About20091073.tiffDENVER THE MILE HIGH CITY April 21, 2009 Weld County Commissioners Weld County PO Box 758 Greeley, CO 80632 Dear Sir or Madame: Enclosed is the Cumulative Noise Report for January 1, 2009 through March 31, 2009 from the Denver International Airport Noise Office. If you have any questions regarding this report, or if I can be of further assistance, please contact me at (303) 342-2360. Sincerely, 4 - Andrea C. Christensen Denver International Airport Aviation Noise Officer DENVER INTERNATIONAL AIRPORT Department of Aviation Airport Office Building 8500 Pena Boulevard Denver, Colorado 80249 303.342.2200 www.FlyDenver.com (1,n/2-//21 L/.(,i /r . - 05/,, /01 no; HiCcP) N � ,, :cm _-- ¶f) _n o �7 L rTl-i CD ;.A'G'CYT - /(_)/73 Passenger Traffic Down 2.4% in January Passenger traffic at Denver Inter- national Airport declined 2.4 per- cent in January compared with the same month of 2008. Airport officials said the drop likely was due to people curtailing business and recreational travel because of the sagging economy. "The number of available airline seats in Denver was up very slightly. a fraction of one percent. in January compared to the same month last year." Aviation Man- ager Kim Day said Wednesday. "So. the logical conclusion is that people are being more cautious with their spending, and may be putting off business and leisure travel until the worrisome eco- nomic conditions improve. DIA recorded 3.669.679 passen- gers in January. That was 91,149 fewer than the 3,750.828 travel- ers who passed through the air- port in January 2008. DIA set an all-time record for passenger traffic last year with 51,245.334. a 2.8 percent increase over the previous record of 49.863,352 passengers set in 2007. March 4, 2009 DIA Press Release January th Mardi, 20 Cum Rep Denver International Airport Noise Office this issue Land Use and Zoning DEN Noise Hotline Policy P.3 NEPS and RMT Map P., Jan - Mar, 2009 Results P.5-9 January 1St to March 31st, 2009 Cumulative Results The number of potential Class II NEPS violations registered during January 1st through March 31st, 2009 is zero. During January 1st through March 31st, 2008, there were also zero potential Class II NEPS violations. Please see page 6 for DEN NEPS information. There was no potential 65 DNL noise contour violation for the time period. The 65 DNL contour continued to be completely contained within the boundaries of the City and County of Denver. Please see page 5 for DEN contour map. There was a 35.8% decrease in noise complaints received in the first 3 months of 2009 as compared to the same period in 2008 (104 vs. 162 in 2008). The number of households registering at least one complaint decreased by 21.7% (18 vs. 23 in 2008). Five house- holds registered a combined 78% of total complaints. The percentage of complaints re- ceived during Nighttime Aircraft Operations (10:00pm to 7:00am) for the first 3 months of 2009 was 22.2% of total complaints received. Please see pages 7 and 8 for complete complaint and operational data. Interesting Aircraft: Gee Bee Racer Model R Granville Brothers Aircraft Springfield, Massachusetts Developed: 1932 Max Speed: 294 mph Range: 925 miles Powerplant: 1x Pratt & Whitney Wasp 1,344 cuin (22 I) displacement Air Cooled 9 cylinder radial, 800 hp (596.5 kW) Won the 1932 Thompson Trophy cross country speed race, piloted by Jimmy Doolittle. DEN Airport Noise and Operations System The DEN Airport Noise and Operations Monitoring System (ANOMS) is a state-of-the-art computer system designed to enable the City and County of Denver to monitor aircraft noise in the vicinity of the airport. In addition to monitoring noise levels, the sys- tem calculates Noise Exposure Performance Standards. (NEPS) at 101 grid points in Adams County (see map on page 4 for NEPS locations). • The DEN ANOMS system monitors noise levels at 27 permanent and 4 portable noise monitoring ter- minals. These terminals are located throughout the Denver metro area (see map on page 4 for RMT locations). The system also records the movement of all aircraft in the vicinity of DEN by utilizing FAA air traffic control radar data. This makes it possible to match actual flights with noise events. 'Fr `- In addition, the ANOMS system records weather information from three remote stations, which include Remote Monitor ng Terminal (RMT) y with a weather collecting station. a RACAL recording device to record pilot/controller radio transmissions. ARTSMAP ARTSMAP is a specially designed noise modeling program that automatically creates noise con- tours. ARTSMAP is designed to create contours from actual radar flight tracks that our office re- ceives from the FAA ARTS system which is sent via modem, eliminating the need for manual data manipulation. The ARTSMAP software is installed on a computer in the Noise Abatement Office. The program analyzes, views. reports, and stores the data. Currently. ARTSMAP is used at several major airports nationally. It allows the DEN Noise Abate- ment Office to perform noise data analysis, generate daily automated noise contours. receive de- tailed runway utilization, and airline fleet mix identification. Land Use and Zoning ARTSMAP Output Urban growth and development in the areas surrounding DEN. particularly non -compatible residential and other noise -sensitive land uses, is of utmost concern to the City and County of Denver. The Noise Office has developed noise contours surrounding the airport, inside which certain types of land uses are not recommended. The 65 Ldn noise contour (average decibel level with a 10 decibel penalty applied to nighttime operations) is a line inside which, under Federal guidelines. no residential development should occur. The operational 65 Ldn noise contour for the airport, as created by ARTSMAP, is included in this report. However, for DEN, the 60 Ldn noise contour is used for compatible land use planning by the surrounding jurisdictions, in accordance with guidelines promulgated by the Denver Regional Council of Governments and the Denver/Adams County Intergovernmental Agreement. Additional mapping for DEN that includes the applicable noise contours is available upon request. U DEN Noise Hotline Policy The purpose of the DEN Noise Complaint Hotline is to provide an opportunity for indi- viduals to express their concerns regarding noise generated by aircraft operating at DEN. Citizens are asked to leave their name, address and the date and time of their complaint on the hotline. Complaints are downloaded daily by our Noise Officers and then transcribed into the ANOMS system, where specific complaints can be matched to individual flight tracks. It is essential for all information to be entered correctly in order for the system to be effective. 4 in Profanity will not be tolerated, and will result in the complaint not being registered. Any attempt to deliberately tie-up or abuse the Hotline may result in police action. Phone harassment is a state criminal offense and can carry a jail sentence and/or fine. Threats involving aircraft and/or the airport are a very serious matter and are a federal criminal offense. To make a threat, even jokingly. will result in a notification to the Denver Police Department and may involve an FBI investigation. Glossary of Terms A rapid variation in air pres- sure, which is perceived by the ear and brain as sound. Generally considered to be any sound, which is deemed undesirable by an individual. Sound is measured by its pressure or energy in terms of decibels. The decibel scale is logarithmic: when the decibel level increases by 6 dB, the measured sound is twice as loud. ><?r..e,., OS '.,-.,.,,.". A measure or ac- tion that minimizes the amount or im- pact of noise on the environs of an air- port. Noise abatement measures in- clude aircraft operating procedures and use or disuse of certain runways or flight tracks. These operating proce- dures are controlled by the FAA. o.1AIn[nhtn!# enunrt teve! fdRt A type of sound level measurement which reduces the effect of very high and very low frequencies in order to mimic the response of the human ear. Nearly all aircraft sound level measurement is conducted using A -weighting. Equivalen' (`nntintIn?le Cnitnr !. eve? f t .Qnt' A measurement of the average sound energy experienced over a pe- riod of time. This average sound level is expressed in decibels, and includes a notation of the period of time, which it covers (such as Leq (24) for an average of the sound level over a 24 -hour pe- riod). Day Night Level (t_dnl Also referred to as DNL. Similar to a Leq measure- ment, but is conducted over at least a 24 -hour time span and includes a 10dB nighttime penalty. For an Ldn calcula- tion, all noise that occurs at night (defined as 10:00 pm to 7:00 am) is artificially increased for the public's in- creased sensitivity to noise during these hours. Noise Contour: A line surrounding an airport that encloses a geographic re- gion. which is exposed to a particular Ldn level. These contour lines are nested in such a way that contours closer to the airport generally surround areas that experience higher noise lev- els than contours farther out. Annual Ldn contours are used to determine whether certain types of zoning or land uses are compatible with particular an- nual Ldn noise levels. 65 Ldn is consid- ered by many federal agencies to be the level at which residential land use be- comes incompatible. 7-,..,,,,.,,a,- nitnrFryr, Tnrminnl (PlRT Consists of a noise level analyzer, a weatherproof microphone, a system controller, a power supply, and a dedi- cated telephone line to download noise data to the ANOMS system, all mounted in a weatherproof cabinet. 3 Noise Exposure Performance Standards (NEPS) Grid Coordinates, IGA Contour, and Remote Monitoring Terminal (RMT) Locations January 1 - March 31, 2009 DEN 65 LDN Contour Adams Arapahoe csitir DEN January 1 - March 31, 2009 65 LDN Contour Adams Legend Jan - Mar, 2009 65 LDN Contour IGA 65 LDN Contour DEN Property Line County Boundary 0 05 1 2 3 Miles 4 January 1 - March 31, 2009 DEN / Adams County IGA NEPS Values Area 2 January 1 through March 31, 2009 Grid Points IGA Annual Leq (24) Calculated Leq (24) Difference Leq A,1 38.6 36.6 -2.0 A,2 37.6 37.4 -0.2 A,3 42.3 38.3 -4.0 A,4 45.3 38.7 -6.6 A,5 43.9 38.4 -5.5 AM 37.5 36.3 -1.2 A,7 37.7 35.9 -1.9 A,8 36.5 36.7 0.2 A,9 36.3 37.7 1.4 A,10 37.6 37.3 -0.3 Ail 1 39.2 35.8 -3.4 A,12 41.2 34.9 -6.3 6,2 39.5 37.8 -1.7 B,4 42.5 39.5 -3.0 B,5 43.1 39.5 -3.7 B,6 39.0 36.9 -2.1 6,7 39.0 36.6 -2.4 B,8 38.0 37.9 -0.1 6,9 38.3 38.8 0.5 6,10 39.0 37.9 -1.1 B,11 40.4 36.3 -4.1 6,12 42.6 35.5 -7.1 C,2 41.0 38.6 -2.4 C,3 43.3 39.2 -4.1 C,4 43.5 40.2 -3.3 C,5 43.4 40.6 -2.8 C,6 43.3 37.6 -5.7 C,7 43.3 37.5 -5.8 C,8 42.6 39.1 -3.5 C,9 42.2 39.9 -2.4 C,10 41.6 38.2 -3.4 C,11 42.5 36.5 -6.1 C,12 44.3 35.8 -8.6 D,2 41.7 39.3 -2.4 D,3 46.2 39.6 -6.7 D,4 48.4 40.8 -7.6 D,5 48.2 41.8 -6.4 D,6 46.2 38.3 -7.9 D,7 44.2 38.3 -5.9 D,8 43.7 40.5 -3.2 D,9 43.1 40.4 -2.7 D,10 44.9 37.9 -7.0 D,11 44.5 36.2 -8.3 D,12 45.1 35.8 -9.3 E,1 42.4 39.4 -3.0 E,2 42.2 40.4 -1.8 E,3 46.7 40.1 -6.6 E,4 51.2 41.5 -9.7 E,5 51.0 43.1 -7.9 E,6 44.6 39.2 -5.5 E,9 43.1 40.6 -2.5 E,10 43.1 37.4 -5.7 E,1 1 46.1 36.1 -10.0 Area 1 January 1 through March 31, 2009 Grid Points IGA Annual Leq (24) Calculated Leq (24) Difference Leq C,4 44.2 36.0 -8.2 C,5 36.7 33.9 -2.8 C,6 36.0 32.9 -3.1 D,4 41.1 35.3 -5.8 D,5 34.2 34.2 0.0 D,6 36.0 34.0 -2.1 D,7 41.4 34.5 -6.9 E,4 38.3 34.6 -3.7 E,5 34.8 34.5 -0.3 EM 36.7 33.4 -3.3 E,7 41.4 33.5 -7.9 F,2 51.7 41.0 -10.7 F,3 43.7 36.7 -7.0 F,5 37.3 32.6 -4.8 F,6 38.5 32.5 -6.0 F,7 42.1 32.8 -9.3 G,2 51.2 41.2 -10.1 G,3 42.1 36.0 -6.1 G,4 40.2 33.1 -7.1 H,2 50.1 41.2 -8.9 H,3 46.0 35.6 -10.4 H,4 46.1 33.7 -12.4 Area 3 January 1 through March 31, 2009 Grid Points IGA Annual Leq (24) Calculated Leq (24) Difference Leq A,-1 38.9 32.4 -6.5 A,0 39.6 32.8 -6.8 A,1 43.2 33.4 -9.8 A,2 45.7 34.4 -11.3 A,3 45.6 35.7 -9.9 B,-1 37.9 32.2 -5.7 6,0 39.2 32.4 -6.8 6,1 42.6 33.0 -9.6 B,2 45.8 33.9 -11.9 B,3 45.7 35.2 -10.5 C,-1 36.7 32.7 -4.0 C,0 37.1 32.7 -4.4 C,1 39.5 33.0 -6.5 C,2 44.8 33.7 -11.1 C,3 46.5 34.8 -11.7 D,-1 32.6 32.8 0.2 D,0 33.3 32.5 -0.8 D,1 37.3 32.6 -4.7 D,2 43.0 33.1 -9.9 E,-1 31.4 32.4 1.0 E,0 33.1 31.8 -1.3 E,1 36.2 31.6 -4.6 E,2 40.6 32.1 -8.5 F,1 36.5 31.6 -4.9 F,2 39.4 32.3 -7.2 G,1 42.5 32.6 -9.9 January 1 - March 31, 2009 DEN Complaint and Operational Statistics January 1 - March 31, 2009 Noise Complaint Calls by Community* Total Calls by Community Community* Aurora Bennett Boulder Brighton Castle Rock Commerce City Denver Elizabeth Hudson Parker Strasburg Thornton Watkins Westminster Overall Total No. of No. of Calls Callers 2009 2009 24 0 0 1 0 3 8 1 5 45 0 14 2 5 0 0 1 0 2 2 1 1 2 1 0 2 1 104 18 No. of Calls 2008 62 1 8 12. U 14 40 14 1 7 0 0 3 0 162 No. of Calls 2007 55 0 1 7 0 10 3 14 0 li 0 1 1 45 148 Westminster Watkins 2% 13% \� Strasburg 43% Aurora Brighton 23% 1% Commerce City 3% Denver 843/0 Elizabeth 0 Hudson ° 1% Parker 5% Top Five Complainants Vs. All Others 21% 6% 7% 43% ' See map on next page for location of known noise complaints. Monthly Comparison: 2009 Noise Complaint Calls - Daytime vs. Nighttime Time Complaint Received Day Hours (7:00 am to 9:59 pm) Night Hours (10:00 pm to 6:59 am) Total ai 1 n D a L c ID C D C to C LA rt Vi fD CD a - (D O n 0 is CD z 0 rn a- co C (D n Co tS CD 28 30 23 4 12 7 32 42 30 2009 Total 81 23 Monthly Comparison: 2008 Total Operations vs. 2009 Total Operations 60000 55000 50000 45000 40000 104 54347 Apr May Jun Jul Aug Sep -;-2008 —i--2009 Oct Nov Dec 60000 55000 50000 45000 40000 January 1 - March 31, 2009 DEN Complaint Location Map C ti C n A 2 -J a 2 0 0 w O z z w a a) 0 0 (Ni S 0 cc 2 cc Q D z Q January 1 - March 31, 2009 DEN RWY Utilization and Day/Night Statistics. 2.1 t 54000 .2' 49000 44000 6 # 39000 'S 4500 a, 4000 3500 0 3000 * 2500 _ 07 ARR L 4 4 % r '16R. ARR 11.5% DEP 0.2% `I = 11.4% DEP ri C- 0.0% ARR DEP Lt, DEP DEP 0.0%1 27.0% ARR OWr) N 0.0% DEP LJ. .,J DEP le 22.5%1-1/ 0.0% � rr DEP 15.7% C 1 0% DEP i F2?8% ARR 35L'; ARR 0.2% DEP 5.8% 0.0% DEP 14.3% ARR /35RR 2008 vs. 2009 DEN Daytime Arrivals & Departures PQ� �\ I �J\ !?- �o, -a- 2008 ♦ 2009 2008 vs 2009 DEN Nighttime Arrivals & Departures g OeG • tcog) OC> \-\6‘ -6-2008 + 2009 O�G 54000 49000 ,Q' 44000 it 39000 5000 42 4500 -c 4000 & 3500 u- 3000 46- 2500 it rail " sh q* •s4# '1.1+� v 7 - Aft ed more info? Visit www.flvdenver.com for more information regarding DIA's Noise Abatement Pro- gram. There you will find very helpful information including. FAQs, Annual Reports, land use maps and much more. PASSFNCFR TRAFFIC AT DIA. DIPS IN FEBRUARY 8.2% decline attributed to economy and airline cutbacks The continuing economic downturn, coupled with airline reductions in capacity, continued to impact passenger traffic at Denver International Airport in February. DIA finished the month with 3,521,618 passengers, a drop of 8.2 percent from the 3,834.362 travelers recorded in the same month of 2008. The month -to -month comparison was skewed, however, by the fact that February 2008 had an extra day because it was Leap Year. The February total brought DIA's year-to-date pas- senger count to 7,191.297. That was 5.3 percent below the total for the first two months of last year. "This is exactly what we have been expecting because of the continuing economic downturn and the capacity reductions implemented by the airlines," Aviation Manager Kim Day said Thursday. The capacity reductions put in place by the airlines continued to impact the number of operations at DIA in February. as well. Operations for the month totaled 46,602, a decline of 5.7 percent from the same month in 2008. Year to date, operations were down 3.6 percent from last year. - April 9, 2009 DIA Press Release Cumulative Noise Report Issue 01 Jan —Mar, 2009 I ARRT C>,AIRPORT DENVER INT ERNATIONAL Noise Office AOB. 6th fl NW Corner 8500 Pena Boulevard Denver, CO 80249-6340 303 342.2000 ph 303 342.2366 fax 303.342.2360 hotline 800.417.2988 toll free hotline www.flydenver.com Hello