CHAPTER 1 INTRODUCTION

CHAPTER 1 INTRODUCTION, thrugh its Cllege f Engineering and Department f Aviatin, the wner and peratr f Ohi State University Airprt (OSUA r Airprt), is undertaking a Federal Aviatin Regulatin (FAR) Part 150 Study (14 CFR Part 150 Study, r Study) fr the Airprt. This Study prvides the pprtunity fr aviatin interests, state and lcal gvernment fficials, and the public t address nise and land use cmpatibility issues related t the Airprt. There are tw phases f the Study: the first is the Nise Expsure Map (NEM) and the secnd is the Nise Cmpatibility Prgram (NCP). The NEM phase f the study dcuments the aircraft nise expsure frm the existing and future (five-year) peratinal envirnment fr the Airprt. The NCP phase evaluates ptential future peratinal nise abatement measures as well as future land use mitigatin pprtunities t imprve the cmpatibility f the Airprt with the surrunding cmmunities. 1.1 STUDY PROCESS OVERVIEW The preparatin f a 14 CFR Part 150 Study invlves a series f steps that represent tw distinct phases. Phase I represents the Nise Expsure Map (NEM) prtin f the Study whereas Phase II represents the Nise Cmpatibility Prgram (NCP) prtin f the Study. Figures 1-1 and 1-2 depict these distinct phases fr the 14 CFR Part 150 Study fr the Airprt. At the utset f the Study, key issues were identified. These issues were dcumented thrugh initial input frm fficials frm the University, representatives frm lcal plitical jurisdictins and affected gvernmental agencies, individual citizens, and cmmunity interests. T accmplish this, input was received at meetings f the Airprt s Part 150 Nise Study Advisry Cmmittee (Part 150 Cmmittee), meetings with the Technical Subcmmittee f the Part 150 Cmmittee, meetings with Airprt persnnel, and at general public meetings. Initial effrts n the Study included the inventry f existing 2007 peratinal activity. This invlved data cllectin f the number f aircraft perating at the Airprt n an annual basis, the fleet mix (types f aircraft), the time f day in which the aircraft perate (day 7:00:00 a.m. t 9:59:59 p.m. r night 10:00:00 p.m. t 6:59:59 a.m.), and existing aircraft peratinal prcedures (i.e., runway use, flight tracks, departure and arrival crridrs). In additin t peratinal data, land use data were cllected and reviewed. These data included zning regulatins, subdivisin requirements, existing land use maps, future land use plans, and ppulatin distributin. After cllecting these data, a nise predictin mdel, the Federal Aviatin Administratin (FAA) Integrated Nise Mdel (INM) Versin 7.0 was used t prduce 2007 nise cnturs (areas f equal nise expsure arund the Airprt). The FAA requires that these nise cnturs be prepared fr the current year (in this case 2007 when the Study began) and a prjected cnditin fr a future year at the discretin f the Study spnsr. Fr the Study at OSUA, the future year f 2012 was chsen t represent five years int the future frm the date f submittal. In additin t the 2012 future nise cnturs, future nise cnturs were als develped fr the year 2027. The frecasts f aircraft peratins used in the mdel fr the 2012 and 2027 cnditins were derived frm the mst recent versin f the Terminal Area Frecast (TAF) frm the FAA. In this case, the mst recent versin was the 2007 TAF. The future fleet mix was determined based n several factrs, including: current and prjected fleet mix fr OSUA, natinal trends in fleet mix change, airplane rders frm manufacturers, and verall perceptin n what the private aircraft industry will lk like Intrductin 1-1 Octber 2008

Airprt Part 150 Study FIGURE 1-1 PART 150 STUDY PROCESS PHASE I Intrductin 1-2 Octber 2008

Airprt Part 150 Study FIGURE 1-2 PART 150 STUDY PROCESS PHASE II Intrductin 1-3 Octber 2008

Airprt Part 150 Study in the future. The existing and future peratinal data and assumptins were input int the INM t generate the 2007, 2012, and 2027 Day-Night Average Sund Level (DNL) cnturs. The perating assumptins fr 2012 and 2027 were different than thse used in 2007 due t: a planned runway extensin, an increase in the number f peratins, and a slight change in fleet mix that is expected t ccur. The existing and future nise cnturs are cllectively knwn as the Airprt s NEMs. The NEMs serve as a basis fr analyzing and cmparing peratinal nise abatement prcedure alternatives and evaluating land use-related nise mitigatin measures. The NEMs are verlaid n existing land use maps and future land use plans (if available) t identify land uses that are cmpatible (r incmpatible) with aircraft nise under current cnditins and thse planned fr the future. The results f these analyses are dcumented in this NEM reprt. The next phase f the Study will evaluate measures t imprve nise cmpatibility arund the Airprt thrugh pssible mdificatins t aircraft peratinal prcedures and pssible changes t future land use planning and zning requirements. The results f the alternatives analyses will be incrprated int the NCP, which will dcument the alternatives cnsidered and present recmmended changes. The cmbined NEM and NCP will be submitted under 14 CFR Part 150 t the FAA fr their apprval. Certain recmmendatins that are apprved culd then becme eligible fr Federal nise abatement funding and fr implementatin f nise abatement flight prcedures. 1.2 AIRPORT LOCATION AND SETTING As shwn n Figure 1-3, OSUA is lcated in Franklin Cunty and within the Clumbus Metrplitan area; apprximately eight miles nrthwest f the dwntwn f the city f Clumbus. As identified n Figure 1-4, the Airprt ccupies apprximately 792 acres within the 1,377-acre parcel f land wned by the University. The primary access t the Airprt is frm the suth via West Case Rad. As can be seen n Figures 1-3 and 1-4, the Airprt prperty is surrunded primarily by residential areas t the east, west, and suth. The area immediately t the nrth f the Airprt encmpasses mixed cmmercial and residential uses. Within the prperty bundary, the University uses the majrity f the land fr aviatin and the remainder fr agriculture. 1.3 HISTORY OF AIRPORT DEVELOPMENT purchased the prperty fr the Airprt in 1942. At that time, the Schl f Aviatin used the site first with a grass runway and then with paved runways after the cmpletin f tw 2,200-ft runways in 1944. The Airprt was als used during Wrld War II fr the Civilian Pilt Training Prgram. In 1959, the Airprt became a public use airprt after the apprval f the first Airprt Master Plan. Upn apprval f this plan, the Airprt was qualified fr federal grant-in-aid assistance. In 1962 the Airprt extended ne f the runways t 5,000 feet thrugh grant funding. Additinal airprt imprvement prjects ccurred in the 1980s including the develpment f crprate hangars, T-hangars, fire statin, runway extensins, fuel facility, maintenance facility, and snw remval facility. An Airprt Develpment Advisry Cmmittee was frmed in 1983 t assist in future planning and the incrpratin f cmmunity needs as the Airprt grew. Intrductin 1-4 Octber 2008

Airprt Part 150 Study FIGURE 1-3 AIRPORT LOCATION Surce: ESA Airprts Intrductin 1-5 Octber 2008

Airprt Part 150 Study FIGURE 1-4 AIRPORT PROPERTY BOUNDARY Intrductin 1-6 Octber 2008

Airprt Part 150 Study As nted abve, the Airprt s first Master Plan was apprved in 1959. The mst recent update, prir t current effrts, was the 2004 Draft Master Plan Update cnducted by Wilbur Smith Assciates. The 2004 Draft Master Plan Update included the analysis f the fllwing prjects: A runway extensin fr Runway 9L/27R Upgrade appraches t runways Taxiway cnnectin imprvements Infill/redevelpment f suthern building area Develpment f nrthern building area when apprpriate Tday, OSUA serves as a general aviatin reliever airprt t Prt Clumbus Internatinal Airprt prviding facilities and services t business jet, law enfrcement, life flight, and student training activity. OSUA has n cmmercial airline passenger service. 1.4 EXISTING AIRPORT FACILITIES 1.4.1 Airfield and Landside Supprt Facilities As shwn in Figure 1-4, the Airprt currently cnsists f fur runways. Runway 9R/27L is the primary runway and is 5,002 feet lng and 100 feet wide. Runway 9L/27R is parallel t the primary runway and is 2,994 feet lng and 100 feet wide. The runways bth have 50-ft-wide parallel taxiways. There are tw crsswind runways: Runway 5/23 is 3,555 feet lng and 100 feet wide. Runway 14/32 is 3,438 feet lng and 100 feet wide. The Air Traffic Cntrl Twer (ATCT) is lcated n the suth side f the airfield and is peratinal frm 7:00 a.m. t 11:00 p.m. Mst landside facilities are lcated n the suth side f the airfield. Landside facilities include the passenger terminal, administratin building, maintenance building, fixed base peratr (FBO), aircraft strage facilities and a fuel farm. Landside facilities t the nrth f the airfield include hangars fr MedFlight and the Ohi Divisin f Aviatin and a fuel farm. There are currently: Fur T-hangar buildings Seven cnventinal hangars Three aprns (apprximately 58,883 square feet) 190 paved tie-dwn areas 1.4.2 Navigatinal Aids OSUA has a variety f Navigatin Aids (NAVAIDs) t assist pilts in pr visibility cnditins r instrument peratins. NAVAIDs include: ILS - Instrument Landing System HIRL - High Intensity Runway Edge Lights DME - Distance Measuring Equipment NDB Nn Directinal Beacn LOC- Lcalizer MALSR Medium Intensity Apprach Lighting System with Runway Alignment Indicatr Lights VASI-4 - Fur Bx Visual Apprach Slpe Indicatrs VASI-2 Tw Bx Visual Apprach Slpe Indicatrs Intrductin 1-7 Octber 2008

Airprt Part 150 Study Runway 9R is equipped with an ILS Categry I apprach. This allws appraches t a decisin height dwn t 200 feet and hrizntal visibility dwn t 1,800 feet. 1.4.3 Airspace/Air Traffic Cntrl The FAA is respnsible fr the safe and efficient use f the natinal air space. This airspace is divided int three specific types: enrute, terminal, and twer. When an aircraft departs an airprt it is lcated in the airspace being handled by air traffic cntrllers wrking in an air traffic cntrl twer. The ATCT persnnel handle aircraft peratins within five nautical miles f the cntrl twer. Aircraft perating beynd five nautical miles are handled by cntrllers wrking in the Terminal Radar Apprach Cntrl Facility (TRACON). Hwever, aircraft departing under Instrument Flight Rules (IFR) flight plans may be handed ff t the TRACON within tw t three nautical miles f OSUA. TRACON cntrllers are respnsible fr the airspace extending ut 30 t 35 nautical miles frm the airprt in all directins. The aircraft then enters the third type f airspace and becmes the respnsibility f enrute cntrllers wrking in an Air Rute Traffic Cntrl Center (ARTCC). The enrute cntrllers retain cntrl until the aircraft nears its intended destinatin. The air traffic cntrl prcess is then reversed fr landings. The cntrllers respnsible fr aircraft perating in the OSUA airspace are lcated n the airprt prperty in the Air Traffic Cntrl Twer. OSUA has an ATCT that perates frm 7 a.m. t 11 p.m. Due t the clse prximity f Prt Clumbus Internatinal Airprt, the airspace surrunding OSUA is mre cmplex than typical airprts. The airspace surrunding OSUA is split between tw classificatins based n the altitude f the aircraft. All airspace frm grund level up t 2,500 feet abve grund level (AGL) and within a fur nautical mile radius f OSUA falls within Class D airspace. T the east and sutheast f OSUA, aircraft beynd these parameters fall within Class C airspace assciated with Prt Clumbus; aircraft t the west and suthwest f OSUA remain within Class D airspace up t 3,000 feet AGL and five nautical miles frm the OSUA. Aircraft that perate within Class D Airspace must be in cntact, at all times, with the twer cntrllers, especially t receive apprval fr take-ffs and landings. When the OSUA ATCT is nt peratinal, prtins f the airspace revert t Class G airspace, which is defined as uncntrlled airspace. All airspace up t 2,500 feet AGL and within a radius f fur nautical miles, remains within Class G airspace. Thse aircraft t the east and sutheast f OSUA, abve 2,500 feet AGL, fall within the Class C airspace f Prt Clumbus. Aircraft t the west and suthwest f OSUA remain within Class G airspace till reaching a radius f five nautical miles frm OSUA, at which pint the airspace becmes Class E airspace. 1.5 NOISE ABATEMENT T address the nise cncerns f the lcal citizens, OSUA has established a nise abatement prgram. Several prgrams are in place t address the nise cncerns. These prgrams include a Please Fly Neighbrly prgram fr pilts, traffic pattern altitudes, engine maintenance run-up prcedures, and vluntary curfews n Stage 2 jets, auxiliary pwer unit usage, tuch and g peratins, and lw practice appraches. It is imprtant t knw that the primary gal f the Airprt is t maintain airprt safety standards and uphld the FAR Rules and Regulatins fr a safe envirnment fr aviatin activities. It is imprtant t nte that aircraft in use fr emergency services, such as plice, ambulance, and military functins are excluded frm the nise abatement prgrams. The OSUA Nise Abatement Guidelines are presented belw. Intrductin 1-8 Octber 2008

Airprt Part 150 Study General Operatins Observe NBAA Nise Abatement Prgram PLEASE FLY NEIGHBORLY. When pssible, avid flying at lw altitudes ver nise sensitive areas. Maintain traffic pattern altitude except n departure r arrival. Use best climb speed and climb angle upn departure. Traffic Pattern Altitude fr helicpters: 1,500 MSL Traffic Pattern Altitude fr small aircraft: 1,900 MSL Traffic Pattern Altitude fr jets: 2,400 MSL Use reduced thrust and/r quiet climb prcedures when peratinally and safely practicable. Use minimum thrust reversing n landing when feasible. On apprach, fly standard 3-degree glide slpe r use VASI lights. Arrival-departure pairs shuld use the same runway heading. Engine maintenance run ups prhibited frm 10 p.m. t 7 a.m. Vluntary curfew f Stage 2 jets encuraged between 10 p.m. and 7 a.m. Avid Auxiliary Pwer Unit usage between 10 p.m. and 7 a.m. and mre than 1 hur befre flight. Training Operatins Tuch and g peratins prhibited between 11 p.m. and 7 a.m. Lw practice appraches prhibited between 11 p.m. and 7 a.m. Jet training prhibited. 1.6 NOISE COMPLAINTS In recent years, cmmunity cncerns related t the aircraft peratins at the Airprt have increased. In 2004, residents began lgging their wn cmplaints related t these aircraft peratins in tw separate databases, the Wrthingtn Cmplaint Database and the We Oppse Ohi State Airprt Expansin (WOOSE) Cmplaint Database. In rder t respnd t cmmunity cncerns regarding aircraft nise in the vicinity f the Airprt, OSUA installed an aircraft nise and peratins mnitring system, AirScene, in 2006. This system was installed t better understand the type f aircraft peratins which were causing the greatest cncern fr cmmunities. In rder t gain understanding f these cncerns, the system assists the Airprt in analyzing the cmplaints and matching thse cmplaints t specific airprt activity. Cmplaints received by Airprt Staff are lgged int the AirScene system fr analysis. Cmplaints are researched and infrmatin pertaining t the cmplaint is prvided t the persn making the Intrductin 1-9 Octber 2008

Airprt Part 150 Study cmplaint. T gain a better understanding f the respnse t cmplaints prcess, a separate review was cnducted f that prcess. That reprt has been included in Appendix A. 1.6.1 AirScene Cmplaint Database The AirScene system tracks all flights within a 50-mile radius and prvides infrmatin abut each flight including altitude, aircraft type, date, time, and departure r arrival infrmatin. Nise cmplaints received by the Airprt are als lgged int the AirScene system. If the cmplaint time is specific enugh, Airprt staff can crrelate that cmplaint t the aircraft which caused the nise event. Cmplaints are received by Airprt staff in varius ways. Cmplaints can be called int a htline, emailed t a specific email address, and als lgged directly int the system s web prtal, WebScene. Using data prvided thrugh these cmplaints and infrmatin within AirScene, Airprt staff research the type f aircraft and view the flight track t determine the altitude, speed and the aircraft s prximity t the pint f disturbance. Airprt staff als gathers pertinent weather and air traffic cntrl infrmatin relating t cmplaints. When requested by the persn making the cmplaint, Airprt staff will cntact the persn making the cmplaint t discuss their cncerns and prvide infrmatin regarding a specific aircraft flight. The cmplaints within the AirScene database frm August 11, 2006 t September 13, 2007 were analyzed t prvide details n the time f day f the aircraft event, where cmplaints are being lgged frm, individual number f cmplaint lcatins fr each city, the primary cmplaint type, and finally the type f aircraft crrelated t cmplaints 1. In reviewing all the cmplaints, the data shwed that 82% f the cmplaints pertained t aircraft peratins that ccurred during the daytime hurs (7:00:00 a.m. 9:59:59 p.m.) and 18% f the cmplaints pertained t aircraft peratins that ccurred during the nighttime hurs (10:00:00 p.m. 6:59:59 a.m.). A review f the cmplaints by city, as shwn in Table 1-1, Wrthingtn shwed by far the greatest number f cmplaints with 88% f all cmplaints. Dublin and Riverlea were the next highest cmplaint lcatins with 6% and 3%, respectively. Figure 1-5 presents a plt f the lcatin f the cmplaints frm the AirScene data by zip cde shwing the gegraphic dispersin f the cmplaints. A graphic representatin f the breakdwn f cmplaints by city is prvided in Figure 1-6. TABLE 1-1 AIRSCENE COMPLAINTS BY CITY Percentage by City / Twn Ttal City Wrthingtn 3,708 88% Dublin 268 6% Riverlea 123 3% Clumbus 108 3% Pwell 3 Hilliard 1 Westerville 1 Unknwn 1 Grand Ttal 4,213 Surce: OSUA AirScene (8/11/06 9/13/07); ESA Airprts 1 Fr thse cmplaints which have specific enugh time reprted t crrelate t an aircraft within the AirScene system. Intrductin 1-10 Octber 2008

Airprt Part 150 Study FIGURE 1-5 AIRSCENE COMPLAINTS DISTRIBUTION BY ZIP CODE Intrductin 1-11 Octber 2008

Airprt Part 150 Study FIGURE 1-6 AIRSCENE COMPLAINTS BY CITY Wrthingtn Dublin Riverlea 6% 3% 3% Clumbus Pwell Hilliard Westerville Unknwn 88% Surce: OSUA AirScene (8/11/06 9/13/07); ESA Airprts In reviewing the cmplaints by city, it was determined that a cmparisn f individual addresses als shuld be cnducted t determine the number f lcatins prviding cmplaints t the Airprt. As shwn in Table 1-2, within each City/Twn there were a small number f individual cmplaint lcatins that file the majrity f the cmplaints. As an example, in Wrthingtn there were six lcatins that were respnsible fr 68% f all the cmplaints frm that City. In Dublin, there was ne lcatin that was respnsible fr 69% f all cmplaints filed frm that City. This indicates the majrity f cmplaints received at the Airprt (67%) came frm a small grup f residents (11 lcatins). TABLE 1-2 AIRSCENE COMPLAINTS AND LOCATIONS BY CITY City / Twn Ttal Cmplaint Lcatins Lcatins with Highest Cmplaints Percentage f Cmplaints Wrthingtn 3,708 112 6 68% Dublin 268 28 1 69% Riverlea 123 13 4 81% Clumbus 108 48 3 31% Pwell 3 2 1 100% Hilliard 1 1 1 100% Westerville 1 1 1 100% Unknwn 1 1 1 100% Grand Ttal 4,213 206 Surce: OSUA AirScene (8/11/06 9/13/07); ESA Airprts Intrductin 1-13 Octber 2008

Airprt Part 150 Study The type f cmplaint is als very imprtant in understanding why aircraft verflights create cmmunity cncerns. At OSUA, persns making a cmplaint culd identify mre than ne cmplaint type. As shwn in Table 1-3, Aircraft Nise was the greatest cmplaint with 47% f the ttal cmplaints. Lw Flight was the secnd greatest cncern with 29% f ttal cmplaints. Disturbed Rest was the third greatest cncern f the cmplaints analyzed with 13%. A graphic representatin f the breakdwn f cmplaints by type is prvided in Figure 1-7. TABLE 1-3 AIRSCENE COMPLAINTS BY TYPE Primary Cmplaint Ttal Percentage Aircraft Nise 1,961 46% Lw Flight 1,213 29% Disturbed Rest 545 13% T Frequent 237 6% Disturbed Cnversatin 136 3% Huse Vibratin 71 2% Engine Run-Up 24 1% Circling 15 Other 6 Safety Cncerns 3 Fuel Odr 2 Grand Ttal 4,213 Surce: OSUA AirScene (8/11/06 9/13/07); ESA Airprts Intrductin 1-14 Octber 2008

Airprt Part 150 Study FIGURE 1-7 AIRSCENE COMPLAINTS BY TYPE Aircraft Nise Lw Flight Disturbed Rest T Frequent Disturbed Cnversatin 6% 1% 2% 3% Huse Vibratin Engine Run-Up Circling Other Safety Cncerns Fuel Odr 13% 46% 29% Surce: OSUA AirScene (8/11/06 9/13/07); ESA Airprts Having the aircraft peratins available frm the AirScene system, Airprt staff can crrelate cmplaints with actual aircraft peratins. This allws Airprt staff t review cmplaints by nt nly the aircraft type, but als by the type f peratin. As shwn in Table 1-4, ver 46% f the ttal cmplaints were nt able t be crrelated t an individual aircraft peratin. This may be due t the cmplaint being general and nt having a specific time assciated with it r if the time is nt accurate enugh t identify the aircraft assciated with the event. Of the cmplaints that culd be crrelated, jet departures prved t be the mst cmmn with 13% f ttal cmplaints. Jet arrivals fllwed with 11% f ttal cmplaints. A graphic representatin f the breakdwn f cmplaint recnciliatin is prvided in Figure 1-8. Intrductin 1-15 Octber 2008

Airprt Part 150 Study TABLE 1-4 AIRSCENE COMPLAINT RECONCILIATION Cmplaint Recnciliatin Ttal Percentage Greater Than Ten Cmplaints* 1,869 44% Jet - Departure 534 13% Jet - Arrival 473 11% Prpeller - Arrival 332 8% Prpeller - Departure 227 5% Unrelated t OSUA 223 5% Unknwn - Arrival 87 2% Unknwn 82 2% Jet - Departure - Stage 2 78 2% Prpeller 58 1% Unknwn - Departure 57 1% Helicpter - Arrival 48 1% Jet - Arrival - Stage 2 48 1% Prpeller - T&G 36 1% Helicpter - Departure 33 1% Jet 14 Helicpter 10 Unknwn - T&G 3 Helicpter - T&G 1 Grand Ttal 4,213 Surce: OSUA AirScene (8/11/06 9/13/07); ESA Airprts * Up t ten cmplaints are researched each mnth per lcatin. Thse exceeding ten cmplaints a mnth are nt researched. Intrductin 1-16 Octber 2008

Airprt Part 150 Study FIGURE 1-8 AIRSCENE COMPLAINT RECONCILIATION > Ten Cmplaints* Jet - Departure Jet - Arrival Prpeller - Arrival Prpeller - Departure Unrelated t OSUA Unknwn - Arrival Unkn wn Jet - Departure - Stage 2 5% 1% 1% 1% 2% 2% 2% 1% 1% 1% Prpeller Unknwn - Departure Helicpter - Arrival Jet - Arrival - Stage 2 Prpeller - T&G Helicpter - Departure Jet Helicpter Unknwn - T&G Helicpter - T&G 5% 44% 8% 11% 13% Surce: OSUA AirScene (8/11/06 9/13/07); ESA Airprts * Up t ten cmplaints are researched each mnth per lcatin. Thse exceeding ten cmplaints a mnth are nt researched. 1.6.2 WOOSE Cmplaint Database In additin t the AirScene database, the database kept by WOOSE was als reviewed t cmpare trends with the AirScene database. This database included cmplaints frm Nvember 12, 2004 thrugh March 13, 2006. This infrmatin was analyzed, as prvided by WOOSE, t prvide additinal details n cmplaints surrunding the airprt. This infrmatin was nt crrelated t actual aircraft flight tracks and therefre any relatin t aircraft types is based n the bservatin by the persn making the cmplaint. In reviewing all the WOOSE database cmplaints, the data shwed that 81% f the cmplaints pertained t aircraft peratins that ccurred during the daytime hurs (7:00:00 a.m. 9:59:59 p.m.) and 19% f the cmplaints pertained t aircraft peratins that ccurred during the nighttime hurs (10:00:00 p.m. 6:59:59 a.m.). In reviewing the cmplaints by city, as shwn in Table 1-5, Wrthingtn als prved t have the greatest number f cmplaints with 86% f all cmplaints cming frm that city. Dublin and Clumbus were the next highest cmplaint lcatins with 11% and 3% respectively. This assessment prves general agreement between the WOOSE and Intrductin 1-17 Octber 2008

Airprt Part 150 Study AirScene databases regarding the lcatin f cmplaints by city. A graphic representatin f the breakdwn f cmplaints by city is prvided in Figure 1-9. TABLE 1-5 WOOSE COMPLAINTS BY CITY City Number f Cmplaints Percentage Wrthingtn 9,988 86% Dublin 1,263 11% Clumbus 373 3% Wrthingtn (Riverlea) 41 Alrj 18 Riverlea 12 OH (city nt specified) 4 Tled 1 Grand Ttal 11,700 100% Surce: WOOSE (11/12/04 3/13/06); ESA Airprts FIGURE 1-9 WOOSE COMPLAINTS BY CITY Wrthingtn Dublin Clumbus 11% 3% Wrthingtn (Riverlea) Alrj Riverlea OH (city nt specified) Tled 86% Surce: WOOSE (11/12/04 3/13/06); ESA Airprts A cmparisn f individual addresses was als cnducted t determine the number f lcatins prviding cmplaints abut airprt peratins. As shwn in Table 1-6, Wrthingtn still shwed the greatest number f cmplaint lcatins (69%), but with a lwer percentage than that shwn by lking nly at cmplaints (85%). Clumbus had mre individual cmplaint lcatins (16%) than Dublin (9%) as cntrasted with the percentage f cmplaints fr each city. This assessment prves Intrductin 1-18 Octber 2008

Airprt Part 150 Study general agreement between the WOOSE and AirScene databases. A graphic representatin f the breakdwn f cmplaints and lcatins by city is prvided in Figure 1-10. As bserved with the AirScene data, within each City/Twn there were a small number f individual cmplaint lcatins that file the majrity f the cmplaints. TABLE 1-6 WOOSE COMPLAINTS AND LOCATIONS BY CITY City Number f Cmplaints Cmplaint Lcatins Lcatins with Highest Cmplaints Percentage f Cmplaints Wrthingtn 9,988 168 10 65% Dublin 1,263 23 2 84% Clumbus 373 38 4 83% Wrthingtn (Riverlea) 41 2 1 98% Alrj 18 1 1 100% Riverlea 12 9 3 58% OH (City nt specified) 4 2 1 75% Tled 1 1 1 100% Grand Ttal 11,700 244 Surce: WOOSE (11/12/04 3/13/06); ESA Airprts An assessment f the type f cmplaint als was prepared t cmpare with the AirScene database. As shwn in Table 1-7, Aircraft Nise was the greatest cmplaint with 88% f the ttal cmplaints. Lw Flight was the secnd greatest cncern with 11% f ttal cmplaints. This assessment indicates general agreement between the WOOSE and AirScene databases, thugh the AirScene system seemed t give a greater variety f cncerns as ptins when filing a cmplaint. A graphic representatin f the breakdwn f cmplaints by type is prvided in Figure 1-10. TABLE 1-7 WOOSE COMPLAINTS BY TYPE Cmplaint Type Cmplaints Percentage Nise 10,329 89% Lw Flight 1,317 11% Other 49 Fuel Odr 5 Grand Ttal 11,700 Surce: WOOSE (11/12/04 3/13/06); ESA Airprts Intrductin 1-19 Octber 2008

Airprt Part 150 Study FIGURE 1-10 WOOSE COMPLAINTS BY TYPE Nise Lw Flight 11% Other Fuel Odr 89% Surce: WOOSE (11/12/04 3/13/06); ESA Airprts The WOOSE database lgs cmplaints with the aircraft type as identified by the persn making the cmplaint. As shwn in Table 1-8, 62% f the ttal cmplaints were identified as being assciated with jet aircraft. This was fllwed by prpeller driven aircraft with 23% f ttal cmplaints. A graphic representatin f the breakdwn f cmplaints is prvided in Figure 1-11. TABLE 1-8 WOOSE COMPLAINTS BY AIRCRAFT TYPE Aircraft Ttal Percentage Jet 7,223 62% Prpeller Plane 2,686 23% Unknwn 1,431 12% Helicpter 343 3% Other 17 Grand Ttal 11,700 Surce: WOOSE (11/12/04 3/13/06); ESA Airprts Intrductin 1-20 Octber 2008

Airprt Part 150 Study FIGURE 1-11 WOOSE COMPLAINTS BY AIRCRAFT TYPE 12% 3% Jet Prpeller Plane Unknwn Helicpter Other 23% 62% Surce: WOOSE (11/12/04 3/13/06); ESA Airprts 1.6.3 Wrthingtn Cmplaint Database An assessment f the Wrthingtn Cmplaint Database als was reviewed fr cmparisn with AirScene s Cmplaint Database. The Wrthingtn database included cmplaints frm September 18, 2003 thrugh Nvember 17, 2004. Due t the way cmplaints were identified in the Wrthingtn database, nly minimal trend cmparisns can be made with the AirScene database. The Wrthingtn Cmplaint Database als lgs cmplaints with the aircraft type as identified by the persn making the cmplaint. As shwn in Table 1-9, 44% f the ttal cmplaints were identified as being assciated with jet aircraft. This was fllwed by prpeller driven aircraft with 38% f ttal cmplaints. A graphic representatin f the breakdwn f cmplaints is prvided in Figure 1-12. TABLE 1-9 WORTHINGTON COMPLAINTS BY AIRCRAFT TYPE Aircraft Type Ttal Percentage Jet 2,832 44% Prp 2,452 38% Unknwn 1,005 16% Helicpter 155 2% Supprt 4 Train 1 Grand Ttal 6,449 Surce: City f Wrthingtn (9/18/03 11/17/04); ESA Airprts Intrductin 1-21 Octber 2008

Airprt Part 150 Study FIGURE 1-12 WORTHINGTON COMPLAINTS BY AIRCRAFT TYPE Jet Prp Unknwn 16% 2% Helicpter Supprt Train 44% 38% Surce: City f Wrthingtn (9/18/03 11/17/04); ESA Airprts 1.6.4 Aircraft Nise Cmplaints Arund the United States It is imprtant t understand the verall cntext f aircraft peratins arund the United States when lking at cmplaints. There are several phases f maturity fr aircraft nise prgrams at airprts. They are the Initiatin phase, the Creatin phase, and the Maintenance phase. The Initiatin phase f an airprt nise prgram typically lasts between ne and three years. During this time, a prgram is beginning t be established t respnd t cmmunity cmplaints and cncerns. At this time, nise cmplaints are typically at their highest level as cmpared with ther phases. During this phase, varius nise abatement measures are being explred and beginning t be implemented. During the Creatin phase f aircraft nise prgrams, nise abatement prcedures tailred t the airprt have been established and greater use f nise analysis tls are being used by the Airprt t respnd t cmmunity cncerns. This phase usually begins at abut three years after initiatin t six years. During this time, aircraft nise cmplaints begin t stabilize. The Maintenance phase f an aircraft nise prgram is categrized by the use f sphisticated nise analysis tls, having published nise abatement prcedures, and having extensive cmmunity utreach tls. This phase typically begins at abut six years after prgram initiatin. During this time, airprt staff has extensive infrmatin abut adherence t nise abatement prcedures and has mechanisms in place t cntinue utreach t aircraft peratrs. Aircraft nise cmplaints tend t begin t diminish as nise abatement prgrams are firmly established. Chicag O Hare Internatinal Airprt s nise abatement prgram is a prime example f this evlutin in the maturity f nise prgrams. When the City f Chicag installed their Aircraft Nise and Operatins Mnitring System, the system lgged ver 25,000 nise cmplaints in their first Intrductin 1-22 Octber 2008

Airprt Part 150 Study year. Over time, with the evlutin f the nise prgram and greater adherence t the prgram, they have reduced t apprximately 1,362 in 2007. Sacrament Mather Airprt is anther example f a high number f cmplaints during the Initiatin phase f the airprt s nise abatement prgram. In previus years, cmplaints were far greater and have begun t stabilize. Other airprts have a great number f nise cmplaints ver a much lnger perid f time. One example f this is Minneaplis s Metr Airprt Cmmissin. In the later half f the year, they received mre than 39,000 cmplaints. Table 1-10 presents a summary f ttal cmplaints fr several airprts arund the cuntry, including large air carrier airprts as well as smaller general aviatin airprts similar t OSUA. TABLE 1-10 2007 NOISE COMPLAINTS BY AIRPORT Facility Ttal 2007 Cmplaints Ohi State University 4,739 Airprt Chicag O Hare 2 1,362 Ls Angeles 4,480 Minneaplis 3 39,986 Bstn 1,730 Sacrament Mather Airprt 4,722 Livermre Airprt 1,388 Scttsdale 5,989 Surce: ESA Airprts 2 Cmplaints lgged in 1998 were 25,733. 3 Only dentes cmplaints frm May 2007 thrugh December 2007. Intrductin 1-23 Octber 2008