Denver International Airport

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1 Denver International Airport Noise Abatement Noise Office Abatement Annual Office Report Annual Report Includes 1999 Quarterly Breakdown & Results of the 1999 Weather Impact Study Introduction This report is published by the DIA Noise Abatement Office as part of DIA s commitment to minimize noise impacts in the airport environs. Although the Federal Aviation Administration (FAA) is the sole authority for the control of aircraft, the City and County of Denver, as airport proprietor, has taken the lead responsibility for monitoring and addressing DIA aircraft noise issues in the vicinity of the airport. The focus of this report is on the data collected by DIA s Airport Noise and Operations Monitoring System (ANOMS) throughout In addition to annual data, a breakdown by quarter is also provided. Information contained in this publication includes Noise Exposure Performance Standards (NEPS) values, maps depicting DIA s 65 Ldn noise contour, as well as aircraft operations statistics, and runway use percentages. For a complete description of DIA s ANOMS system see page 3. This report also includes the results of the 1999 Weather Study undertaken by the DIA Noise Abatement Office to determine the impacts of extraordinary weather to the NEPS points. Using numerous sources of both text and radar images, the flights which deviated due to weather were able to be positively identified. These flights were then reassigned electronically to the flight tracks they would have flown had they not been impacted by weather. Examples of ANOMS System Output Aircraft flying over an RMT FAA Airport Surveillance Radar The Noise Contours and NEPS values were established pursuant to DIA operating with 6 runways. Currently DIA has only 5 operating runways, therefore the reported data may be inconsistent with established numeric sound levels for the Noise Contour and NEPS locations. Contents Introduction 1 NEPS Points and RMT Maps 2 DIA ANOMS System Annual Data 4 First Quarter 1999 Data 9 Second Quarter 1999 Data 13 Third Quarter 1999 Data 1 Fourth Quarter 1999 Data 21 Weather Impact Study Definitions Contour A line enclosing a certain area in which the annual Ldn is at or above a certain level. db Decibel. A Linear scale used to define a logarithmic scale of sound amplification. Ldn A 24 hour Leq with a 10 db penalty added to all levels measured between 10pm and am. Leq Equivalent continuous sound level (average level over a given time span) NEPS Noise Exposure Performance Standards. A group of geographic points surrounding DIA, for which corresponding annual aircraft Leq limits have been set in the IGA. There are 101 grid points in Adams County defined in the IGA. (See map page 2) Area 1: Brighton and Barr Lake Area 2: Thornton, Northglenn and Commerce City Area 3: Aurora Page 1

2 Denver International Airport Noise Exposure Performance Standards (NEPS) Grid Coordinates 12 A B C D E Area 2 C D E F G H Area 1 A B C D E F G Area 3 Remote Monitoring Terminal (RMT) Locations Page 2

3 Denver International Airport Noise Abatement Denver Office International Quarterly Airport Report DIA Airport Noise and Operations Monitoring System The Denver International Airport Airport Noise and Operations Monitoring System (AMOMS) is a stateof-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 system calculates Noise Exposure performance Standards (NEPS) at 101 grid points in Adams County (see map page 2). The DIA ANOMS system monitors noise levels at permanent and 5 portable noise monitoring terminals. These terminals are located throughout the metro Denver area. The system also records the movement of all aircraft in the vicinity of DIA by utilizing FAA air traffic control radar data. This makes it possible to match actual flights with noise events. In addition the ANOMS system records weather info from three remote stations and includes a RACAL recording device to record pilot/controller radio transmissions. DIA Noise Hotline Policy The purpose of the DIA noise hotline is to provide an opportunity for individuals to express their concerns regarding noise generated by aircraft operating at DIA. The noise complaint system has been designed to ask questions relative to citizens concerns. Once this information has been correctly entered, it is then transcribed into the Airport Noise and Operations Monitoring System (ANOMS), 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. Profanity will not be tolerated and will result in the complaint not being registered. Any attempt to deliberately tie-up or abuse the hotline can be considered harassment and may result in police action. Phone harassment is a state offense and can carry a jail sentence and/or fines. Threats involving aircraft and/or the airport are a very serious matter and are a federal offense. All threats will result in Denver Police Department notification and may involve an FBI investigation. Please note that the noise hotline is an automated system, and that weak or noisy telephone lines in a caller s local area may in some rare cases cause the system to disconnect or malfunction. We have therefore created two alternate methods which may be used to register a complaint. Complaints may DIA Noise Abatement Office Airport Office Building 500 Pena Blvd. Denver, Colorado 0249 Noise Complaint Hotline: (303) Toll Free (Outside of local calling area): Fax: (303) noiseoffice@dia.denver.co.us Page 3

4 Denver International Airport Denver Noise International Abatement Office Airport Quarterly 1999 Annual Report Annual 1999 March 1, 1999 February 29, 2000 Page 4

5 Denver International Airport Annual 1999 Annual 65Ldn Contour Page 5

6 Denver/Adams County IGA NEPS Values 1999 Annual Area 2 Annual A, A, A, A, A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B, B, B, C, C, C, C, C, C, C, C, C, C, C, D, D, D, D, D, D, D, D, D, D, D, E, E, E, E, E, E, E, E, E, Page 6 Denver International Airport Annual Area 1 Annual C, C, C, D, D, D, D, E, E, E, E, F, F, F, F, F, G, G, G, H, H, H, Area 3 Annual A, A, A, A, A, B, B, B, B, B, C, C, C, C, C, D, D, D, D, E, E, E, E, F, F, G,

7 Denver International Airport Annual 1999 Annual Complaint Statistics Number of complaints Total number of noise complaints 14,66 3,999 Total number of hotline callers /households 55/ /12 Max # of complaints by an individual /household 200/ /6942 Breakdown by time of day This Year % Last Year % Day hours ( a.m. - 9:59p.m.) 12,3.% 33,659.6% Night Hours (10 p.m. - 6:59 a.m.) 1,5 12.2% 4,0 11.4% All Hours 14, % 3, % Breakdown by Month 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter March 129 June 1302 September 1193 December 53 April 1209 July 23 October 109 January 339 May 105 August 159 Nov ember 1024 February 2 3,546 5,3 3,9 1, Mar Total Complaints 1999 Reporting Year vs. 199 Reporting Year Apr Mar Apr May June July Aug Sep Oct Nov Dec Jan Feb Monthly Aircraft Operations* May June July Aug Sept Oct Nov Dec Jan Feb *Total Operations: includes Air Carrier, General Aviation and Air Taxi Breakdown by: City Households * Max # (blank) 5 2 Arv ada Aurora Bennett Black Hawk 2 6 Boulder Brighton Broomfield Byers Commerce City Conifer Denv er Eldorado Springs Elizabeth Englewood 4 4 Estes Park Ev ergreen Fort Collins 1 Fort Lupton Franktow n 2 Golden Greeley Henderson Highlands Ranch 2 4 Hudson Jamestown 1 Kiowa Lakewood Larkspur Littleton Longmont 1 Louisville Louv iers Ly ons 13 2 Morrison Nederland Northglenn Parker Sedalia Strasburg Superioir Thornton Watkins Westminster Wheatridge * TOTAL This column further breaks 1466 down the household 559 category by depicting the highest number of complaints received from an individual household. Top 10 Complainants vs. All Others All Others 24% 3% 3% 3% 4% 4% 6% 1% 6% 10% 11% Source: Federal Aviation Administration Page

8 Runway Utilization 1999 Annual Denver International Airport Noise Abatement Office Quarterly Report All Indications in percents Departur Arrivals Day Arrivals (00am-959pm) Day Departures (00am-959pm) 36.4% 10.0% 6.4% % % 10.3% % 19.1% 2.4% 0.3% 13.4% 0 0.4% % 3.2% 0 0 Night Arrivals (1000pm-659am) Night Departures (1000pm-659am) 31.4% 2.% 1.% 0 0.% 0 32.% 3 0.3% 0 0 2% 0% 31% 1% 1% 1% 0 3% 1% 0% 0 43% 0 0 Page

9 Denver International Airport Denver Noise International Abatement Airport Office 1st Quarterly Report 1999 First Quarter, 1999 March 1 May 31 Page 9

10 Denver International Airport Denver Noise International Abatement Denver Airport Office International 1st Quarterly Airport Report First Quarter Ldn Contour Page 10

11 Denver International Airport Denver Noise International Abatement Denver Airport Office International 1st Quarterly Airport Report Denver/Adams County IGA NEPS Values First Quarter 1999 Area 2 1st Quarter A, A, A, A, A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B, B, B, C, C, C, C, C, C, C, C, C, C, C, D, D, D, D, D, D, D, D, D, D, D, E, E, E, E, E, E, E, E, E, Area 1 1st Quarter C, C, C, D, D, D, D, E, E, E, E, F, F, F, F, F, G, G, G, H, H, H, Area 3 1st Quarter A, A, A, A, A, B, B, B, B, B, C, C, C, C, C, D, D, D, D, E, E, E, E, F, F, G, Page 11

12 Denver International Airport Denver Noise International Abatement Denver Airport Office International 1st Quarterly Airport Report Runway Utilization 1st Quarter All Indications in percents 5.3 Departures Arrivals 30.3%.% 6.% 0.9% 11.9% 0.% 2.5% 0.4% 12.6% 24.1% 0.0% 1.% 2.1% 1.4% 0.0% 31.2% 6.2% 32.9% 2.6% 4.3% 1.0% 2.4% 31.0%.0%.4% 0.% 0.0% 0.4% 1.1% 35.2% 19.% 1.2% Page 12

13 Denver International Airport Denver International Noise Abatement Denver Airport Office International 2nd Quarterly Airport Report 1999 Second Quarter, 1999 June 1 August 31 Page 13

14 Denver International Denver Airport International 2nd Quarter Airport Second Quarter Ldn Contour Page 14

15 Denver International Denver Airport International 2nd Quarter Airport Denver/Adams County IGA NEPS Values Second Quarter 1999 Area 2 2nd Quarter A, A, A, A, A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B, B, B, C, C, C, C, C, C, C, C, C, C, C, D, D, D, D, D, D, D, D, D, D, D, E, E, E, E, E, E, E, E, E, Area 1 2nd Quarter C, C, C, D, D, D, D, E, E, E, E, F, F, F, F, F, G, G, G, H, H, H, Area 3 2nd Quarter A, A, A, A, A, B, B, B, B, B, C, C, C, C, C, D, D, D, D, E, E, E, E, F, F, G, Page 15

16 Denver International Airport Denver International Noise Abatement Denver Airport Office International 2nd Quarterly Airport Report Runway Utilization 2nd Quarter All Indications in percents 5.9 Departures Arrivals Day Arrivals (00am-959pm) Day Departures (00am-959pm) 36.4% 24.9% 10.0%.3% 0.6% 3.9% 1.1% 15.2% 6.4% % 12.3% 0 0.% 24.0% 31.1% 0.5% 10.3% % 0 2.4% 0.0% 0.4% 2.1% 1.2% 0 24.% 35.% 36.1% 0.0% 19.0% 19.1% 1.0% 13.4% 6.4% 3.2% 0 0 Night Arrivals (1000pm-659am) Night Departures (1000pm-659am) 0 0.% 0.9% 0 2.% 3.4% 0.0% 23.% 31.4% 3.3% 1.% 30.3% 0.5% 32.% 3 3.6% 0.3% % 3% 0.6% 31% 2.9% 3.5% 2% 0% 0.3% 1% 1.% 1%.6% 1% 3.1% 0 43% 0.% 0% 2.5% 0 0 Page

17 Denver International Airport Denver Noise International Abatement Denver Airport Office International 3rd Quarterly Airport Report 1999 Third Quarter, 1999 September 1 November 30 Page 1

18 Denver International Denver Airport International 3rd Quarter Airport Third Quarter Ldn Contour Page 1

19 Denver/Adams County IGA NEPS Values Third Quarter 1999 Area 2 3rd Quarter A, A, A, A, A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B, B, B, C, C, C, C, C, C, C, C, C, C, C, D, D, D, D, D, D, D, D, D, D, D, E, E, E, E, E, E, E, E, E, Page 19 Denver International Denver Airport International 3rd Quarter Airport Area 1 3rd Quarter C, C, C, D, D, D, D, E, E, E, E, F, F, F, F, F, G, G, G, H, H, H, Area 3 3rdQuarter A, A, A, A, A, B, B, B, B, B, C, C, C, C, C, D, D, D, D, E, E, E, E, F, F, G,

20 Denver International Airport Denver Noise International Abatement Denver Airport Office International 3rd Quarterly Airport Report Runway Utilization 3rd Quarter All Indications in percents 5.2 Departures A rrivals Day Arrivals (00am-959pm) Day Departures (00am-959pm) 30.3%.% 6.% 0.9% 11.9% 0.% 2.5% 0.4% 12.6% 24.1% 0.0% 1.% 2.1% 1.4% 0.0% 31.2% 6.2% Night Arrivals (1000pm-659am) Night Departures (1000pm-659am) 32.9% 2.6% 4.3% 1.0% 2.4% 31.0%.0%.4% 0.% 0.0% 0.4% 1.1% 35.2% 19.% 1.2% Page 20

21 Denver International Airport Denver Noise International Abatement Denver Airport Office International 4th Quarterly Airport Report 1999 Fourth Quarter, 1999 December 1 February 29 Page 21

22 Denver International Denver Airport International 4th Quarter Airport Fourth Quarter Ldn Contour Page 22

23 Denver/Adams County IGA NEPS Values Fourth Quarter 1999 Area 2 4th Quarter A, A, A, A, A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B, B, B, C, C, C, C, C, C, C, C, C, C, C, D, D, D, D, D, D, D, D, D, D, D, E, E, E, E, E, E, E, E, E, Page 23 Denver International Denver Airport International 4th Quarter Airport Area 1 4th Quarter C, C, C, D, D, D, D, E, E, E, E, F, F, F, F, F, G, G, G, H, H, H, Area 3 4th Quarter A, A, A, A, A, B, B, B, B, B, C, C, C, C, C, D, D, D, D, E, E, E, E, F, F, G,

24 Runway Utilization 4th Quarter 1999 Denver International Airport Denver Noise International Abatement Denver Airport Office International 4th Quarterly Airport Report All Indications in percents 4. Departures Arrivals Day Arrivals (00am-959pm) Day Departures (00am-959pm) 30.3% 36.4% 10.0%.% 6.% 0.9% 6.4% % 12.3% 0 0.% 24.0% 2.5% 0.4% 10.3% 12.6% % 0 2.4% 0.4% 2.1% 0.0% 0 24.% 24.1% 31.2% 36.1% 0.0% 1.% 19.1% 13.4% 1.4% 6.2% 3.2% 0 0 Night Arrivals (1000pm-659am) Night Departures (1000pm-659am) 0 0.% 1.0% 0 2.% 2.6% 31.0% % 32.9% 1.% 4.3% 32.% 2.4% 0.3% 0 0 2% 0% 31%.0% 0 1% 0.0% 3% 0.% 35.2% 0 43%.4% 1% 19.% 1.2% 0.4% 0% 1% 1.1% 1% 0 0 Page 24

25 Denver International Airport 1999 Weather Study Results Results of 1999 Weather Study* * - Examines the impact of extraordinary weather to the NEPS Values. Page

26 Page Denver International Denver Airport International 1999 Airport Weather Weather Study Results 1999 Denver/Adams County IGA NEPS Values Weather Results 1999 Area 2 Weather Corrections A, A, A, A, A, A, A, A, A, A, A, A, B, B, B, B, B, B, B, B, B, B, C, C, C, C, C, C, C, C, C, C, C, D, D, D, D, D, D, D, D, D, D, D, E, E, E, E, E, E, E, E, Area 1 Weather Corrections C, C, C, D, D, D, D, E, E, E, E, F, F, F, F, F, G, G, G, H, H, H, Area 3 Weather Corrections A, A, A, A, A, B, B, B, B, B, C, C, C, C, C, D, D, D, D, E, E, E, E, F, F, G,