noise management study – toronto city centre airport · 2016. 4. 27. · dash 8 – q400; dash 8...
TRANSCRIPT
1TCCA Noise Management Study Advisory Committee Meeting
Meeting Room C, City Hall, Toronto - February 18, 2009
NOISE MANAGEMENT STUDY –TORONTO CITY CENTRE AIRPORT
STUDY ADVISORY COMMUNITY MEETING
2TCCA Noise Management Study Advisory Committee Meeting
MEETING AGENDA
Study Scope & Work Plan Community Consultation Process Aircraft Noise Monitoring Process Aircraft Noise Reporting Process Noise Modelling Approach Q-400 Noise Certification Limits Airport Curfew Study Process Going Forward
3TCCA Noise Management Study Advisory Committee Meeting
STUDY SCOPE & WORK PLAN
4TCCA Noise Management Study Advisory Committee Meeting
COMMUNITY CONSULTATION PROCESS
Establishment of Noise Study Community Advisory Committee
Stages of Community Involvement to Study: Initial Advisory Committee Meeting Follow-up Advisory Committee Meeting Prior to
Issuance of Draft Report (Conclusions and Recommendations).
Community Meeting to Present Draft Report
Study will address on-going community involvement in noise management program.
5TCCA Noise Management Study Advisory Committee Meeting
STUDY NOISE MONITORING PROCESS
Set-up portable noise monitoring equipment & measured noise levels over a continuous two-day period (from 06:00 to 23:00).
Continuous visual monitoring & recording of airport activity (from old ATC roof) during the same period.
4 Locations – September 8-10, 2008 2 Locations – November 11-13, 2008Monitoring Under Various Atmospheric Conditions:
September 8 – 14C, Overcast and Light rain in evening September 9 – 15C, Partly Cloud, N Wind (5-10 kph) September 10 – 10C, Clear, Light NE Wind November 11 – 4 to 6C, Clear, Light W Wind (13-28 kph) November 12 – 4 to 6C, Clear, NE Wind (11-32 kph) November 13 – 7 to 8C, Cloudy/Rain, SE-S Wind (9-24 kph)
6TCCA Noise Management Study Advisory Committee Meeting
STUDY NOISE MONITORING LOCATIONS
LEGEND:
SEPT 8-10, 2008
NOV. 14-16, 2008
7TCCA Noise Management Study Advisory Committee Meeting
STUDY NOISE MONITORING PROCESS
Two locations at existing permanent noise monitoring locations were used to validate data.
Other locations were used to valid the NEF contours to be prepared under the Study.
The visual monitoring was used to discern whether specific elevated noise events were related to airport activity.
Information will also be used to identify potential mitigation measure or improved procedures.
8TCCA Noise Management Study Advisory Committee Meeting
STUDY NOISE MONITORING PROCESS
9TCCA Noise Management Study Advisory Committee Meeting
NOISE EXPOSURE FORECASTS (NEF)
In Canada, aircraft noise limitations are expressed as Noise Exposure Forecast (NEF).
NEF combines the noise levels of individual aircraft and the numbers of aircraft to give a single number rating of the average impact of the aircraft noise.
Nighttime operations are heavily weighted.
10TCCA Noise Management Study Advisory Committee Meeting
NOISE LIMITATIONS AT TCCA
11TCCA Noise Management Study Advisory Committee Meeting
AIRCRAFT NOISE MODELLING
Study will utilize state-of-the-art FAA Integrated Noise Model (INM), Version 7a
The advantages of using INM are: Extensive database of noise-thrust-distance
relationships for most civil aircraft Better models realistic aircraft flight tracks Allows for factoring of aircraft take-off dispersal
Study will utilize INM to update NEFs using: Current aircraft & rotorcraft movement data (2008); Current and future aircraft types (incl. Q-400); Current runway usage distribution and flight
patterns
12TCCA Noise Management Study Advisory Committee Meeting
AIRCRAFT NOISE MODELLING
Disadvantages of the NEF contours: They are generally only meant to be used as a
tool for land use planning control. Only takes into account aircraft noise, not
background noise from other sources (i.e. automobiles, trains, pedestrians, ships, wave action).
Difficult for the public to understand what the NEF contour values actually represent.
There are other methods of noise modellingused in other sectors.
13TCCA Noise Management Study Advisory Committee Meeting
COMMUNITY NOISE MODELLING
CADNA developed and extensively used in Europe, primarily for mapping community noise levels from transportation and industrial sources.
Accepted by MOE for environmental assessments in Ontario.
CADNA takes into account: Noise from various sources using current traffic volume and
speed data Takes into account physical features (i.e. bldgs) Road and rail traffic
Advantages: Enables mapping of large areas and simultaneous effect of
multiple sources. More realistic and visual model of acoustic environment.
14TCCA Noise Management Study Advisory Committee Meeting
COMMUNITY NOISE MODELLING
15TCCA Noise Management Study Advisory Committee Meeting
TCCA – NOISE REPORTING PROCESS
2 Continuous Noise Monitoring Stations;Noise Reports received via:
TPA website (95%) Dedicated telephone (3% - 4%) E-mails and phone calls directly to staff (1%)
Noise Reports investigated via: Noise monitoring stations; Link to NavCanada radar; Control tower data sheets.
16TCCA Noise Management Study Advisory Committee Meeting
TCCA – NOISE REPORTING SUMMARY
Noise Reporting (2007)
17TCCA Noise Management Study Advisory Committee Meeting
TCCA – NOISE REPORTING SUMMARY
Noise Reports by Time of Day (2007)
10%
18%
29%
43%
Midnight - 0644
0645 - Noon
Noon - 1759
1759 - Midnight
18TCCA Noise Management Study Advisory Committee Meeting
TCCA – NOISE REPORTING SUMMARY
Noise Reports by Phase of Operation (2007)
20%
14%
56%
7% 3% Approach/Landing
Departure/Takeoff
Overflight
On Ground
Unknown
19TCCA Noise Management Study Advisory Committee Meeting
TCCA – NOISE REPORTING SUMMARY
Noise Reports by Type (2007)
22%
16%62%
Noise
Presence of Aircraft
Noise & Presence
20TCCA Noise Management Study Advisory Committee Meeting
CHANGES TO NOISE REPORTING
Changes to Web Reporting Form (more detailed info for improved analysis).
Written or E-mail response within 96 hrs.Noise reference materials on website and
printed media for better public understanding.
Improved monthly and annual summary of reported noise events.
Discuss & resolve specific reported noise events on a quarterly basis.
21TCCA Noise Management Study Advisory Committee Meeting
NOISE CERTIFICATIONS LEVELS
Contains “special conditions” for noise abatement.One of these “special conditions” is a prohibition
on: “aircraft generating excessive noise”.Four categories of aircraft are defined:
Propeller driven aeroplanes not exceeding 5,700 kg maximum takeoff weight (MTOW);
Propeller driven aeroplanes exceeding 5,700 kg MTOW other than short takeoff and landing (STOL) aircraft;
Propeller driven aeroplanes exceeding 5,700 kg MTOW and classified as STOL aircraft; and,
Propeller driven aeroplanes not in ICAO listing.
22TCCA Noise Management Study Advisory Committee Meeting
NOISE CERTIFICATIONS LEVELS
Q-400 has a MTOW of 28,998 kg.Q-400 is not classified as a STOL aircraft.Fits into the second category of the aircraft defined
by the Tripartite Agreement.For this category the Tripartite Agreement
stipulates noise levels under 3 flight conditions: 84.0 Effective Perceived Noise in Decibels (EPNdB)
on takeoff (flyover) 83.5 EPNdB on sideline at takeoff (lateral to flight
path) 92.0 EPNdB on approach.
23TCCA Noise Management Study Advisory Committee Meeting
Bombardier Q-400
30 different versions listedDivided into three groupings:
Dash 8 – Q400; Dash 8 – Q401; Dash 8 – Q402
All aircraft operated by Porter Airlines are the Dash 8 – Q402
MTOW of 28,998 kgMLW of 28,009 kgModification of Engine Revolution on Approach
at 850rpmDocumented as Modification No. 39
24TCCA Noise Management Study Advisory Committee Meeting
Bombardier Q-400-402
The certification noise levels for this aircraft version are: 78.0 EPNdB on takeoff (flyover) 84.0 EPNdB on sideline at takeoff (lateral to flight
path) 93.1 EPNdB on approach
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TRIPARTITE AGREEMENT COMPLIANCE
Tripartite Agreement states that the noise levels are to be calculated in accordance with ICAO, Annex 16, Chapter 5 and Appendix 2.
Annex 16, Chapter 5, under 5.5 permits “Trade-Offs” for the three various noise levels.
“If the maximum noise levels are exceeded at one or two measurement points”: any excess at any single point shall not be greater
than 2 EPNdB; the sum of excesses shall not be greater than 3
EPNdB; and, any excesses shall be offset by corresponding
reductions at the other point or points.”
26TCCA Noise Management Study Advisory Committee Meeting
TRIPARTITE AGREEMENT COMPLIANCE
9293.1Approach
83.584Lateral
8478Flyover
TripartiteQ402
Comparison of Q400 to Limits in Tripartite
27TCCA Noise Management Study Advisory Committee Meeting
TRIPARTITE AGREEMENT COMPLIANCE
1.19293.1Approach
0.583.584Lateral
-68478Flyover
DifferenceTripartiteQ402
Two levels are exceeded however individually, not more than 2.0 EPNdB
28TCCA Noise Management Study Advisory Committee Meeting
TRIPARTITE AGREEMENT COMPLIANCE
1.6Total Excess Values
1.19293.1Approach0.583.584Lateral -68478Flyover
DifferenceTripartiteQ402
The sum of the two excesses total 1.6 which is less than the 3.0 EPNdB
29TCCA Noise Management Study Advisory Committee Meeting
TRIPARTITE AGREEMENT COMPLIANCE
-6Total Reduction Values1.6Total Excess Values
1.19293.1Approach0.583.584Lateral -68478Flyover
DifferenceTripartiteQ402
The excesses are offset by the reduction for a net reduction of 4.4 EPNdB
30TCCA Noise Management Study Advisory Committee Meeting
TRIPARTITE AGREEMENT COMPLAINCE
The Dash 8-Q400-402 aircraft used by Porter Airlines has noise levels below the criteria for an
“aircraft generating excessive noise” is compliant with the Tripartite Agreement
31TCCA Noise Management Study Advisory Committee Meeting
STEPS GOING FORWARD
THANK YOU FOR YOUR TIMEAND CONSIDERATION
QUESTIONS OR COMMENTS?