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General Noise AssessmentMARC Northeast Maintenance Facility Perryville A
Location
Prepared for:
Maryland Transit Administration6 Saint Paul Street
Baltimore, MD 21202
Prepared by:
10245 Old Columbia RoadColumbia, Maryland 21046
August 2014
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Table of Contents
Introduction ________________________________________________________________________ 1
Existing Conditions _________________________________________________________________ 1
Proposed Conditions ________________________________________________________________ 1
Transit Noise Fundamentals ____________________________________________________________ 4
Screening Procedure __________________________________________________________________ 5
General Rail Noise Assessment __________________________________________________________ 9
Noise Impact Analysis Results ________________________________________________________ 10
Mitigation _________________________________________________________________________ 12
Figures and Tables
Figure 1. Perryville A Site Location Map _________________________________________________ 3
Figure 2. Noise Impact Criteria for Transit Projects _________________________________________ 5
Figure 3. Noise Sensitive Areas and Receiver Sites _________________________________________ 7
Table 1. Land Use Categories and Metrics for Transit Noise Impact Criteria _____________________ 4
Table 2. Source Reference Levels at 50 feet from Center of Site Stationary Sources _______________ 9
Table 3. Receptor Locations, Existing Noise Level and Proposed Project Predicted Impacts ________ 10
Table 4. Receptor Locations, Existing Noise Level and Potential Expansion Predicted Impacts ______ 12
AppendicesAppendix A. Rail Impact Spreadsheets
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Introduction
MTA proposes to purchase a 112-acre property east of the Town of Perryville, in Cecil County, Marylandto construct a maintenance facility for the MARC train system. A screening and a general rail noiseassessment was completed to determine the projects potential to result in noise impacts fromoperation of the proposed MARC Northeast Maintenance Facility.
EXISTING CONDITIONS
The proposed MARC Northeast Maintenance Facility would be constructed on a farm property thatcontains two residential buildings and various outbuildings along Principio Furnace Road, east of SouthWoodland Farms Lane. The farm property is jointly owned by Woodlands-Coudon, Inc., Wilson L.Coudon et al., and is located between the Amtrak railroad tracks and Principio Furnace Road. South ofthe proposed facility, and south of the railroad tracks, is a large IKEA distribution facility and the AmtrakMaintenance of Way (MOW) facility. An industrial facility is located to the west of the proposed facility.Residences are located north and west of the proposed facility, and the Furnace Bay Golf Course islocated to the east (Figure 1). The primary sources of existing noise are transportation-related andinclude:
Amtrak rail line on the south side of the proposed facility Principio Furnace Road, a 2-lane roadway on the north side of the proposed facility An IKEA Distribution Facility south of the rail line An Amtrak MOW Facility south of the rail line
PROPOSED CONDITIONS
The yard and shop facility would be constructed to accommodate the proposed project operations withthe potential for future expansion. For the purpose of the general noise analysis, the proposed projectoperations and the potential future expansion operations were analyzed in two separate modelingscenarios.
Proposed Project OperationsThe project operations would include a fixed guideway lead track with diesel electric locomotives, arailcar and locomotive shop, operations center, servicing and inspection building, support shops, offices,a storeroom, a wash facility, a passenger car repair building, a commercial power substation, a fueling
and sanding pad, two diesel fuel above ground storage tanks, parking facilities, and 19 track sidings toaccommodate the repair and storage of trains. Diesel locomotive daily startup and inspection would beperformed at the proposed Perryville A site for a maximum of 5 locomotives at any time. Trains wouldaccess the proposed facility via the lead tracks that connect the Amtrak railroad tracks to the proposedfacility, and motor vehicles would access via a road that extends southward to the facility from PrincipioFurnace Road.
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Noise-generating activities associated with the operation of the facility would include the use of thefollowing vehicles and equipment:
Air compressor Train Movements
Fuel Trucks Diesel Locomotive Start up/Daily Inspection
The majority of the train maintenance activity on the site would occur between 9:00 p.m. and 6:00 a.m.,although some train storage and maintenance activity could occur throughout the day between 10:00a.m. and 3:00 p.m., including non-peak hour use of layover tracks. Fuel delivery would occur between7:00 a.m. and 2:00 p.m.
Potential Expansion OperationsPotential Expansion operations would remain consistent with the proposed project activities andmaintenance operation schedule with three exceptions. The addition of a train washer, the number ofdiesel locomotives, and train sets maintained at the Perryville facility would increase to accommodate aminimum of 5 to a maximum of 18 train sets and up to 36 locomotives. Although the facility can feasiblysupport 36 locomotives, it is estimated that the likely maximum would be 27. Miscellaneous equipmentmovements including rolling stock in and out of the shop via Trackmobile would occur at an estimatedrate of about 6 movements per 24 hours.
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MARC NORTHEAST MAINTENANCE FACILITYPERRYVILLE A SITE
CECIL COUNTY, MARYLAND
FIGURE 1
MARYLAND TRANSIT ADMINISTRATIONPERRYVILLE MARC MAINTENANCE AN
STORAGE FACILITY
FOREST
MITIGATION
AREA
SUSQUEHANNA RIVER
PERRYVILLE A
Sources: Esri, DeLorme,NAVTEQ, USGS, Intermap,iPC, NRCAN, Esri Japan,METI, Esri China (Hong
SITE LOCATION MAP
IKEA
NOT TO SCALE
Scale: 1 in = 6 miles
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Transit Noise Fundamentals
The extent to which individuals are affected by noise sources is controlled by the following factors:
Duration and frequency of sound Distance between the sound source and the receptor Natural or manmade barriers or structures Ambient noise environment
The unit used for measuring rail transit noise levels is the A-weighted decibel, dB(A), which accentuatesnoise levels within the range of human hearing. Because the duration and frequency of sound is a factorin how sound is perceived, the noise level in dB(A) is averaged over a period of time and can be writtenas Leq or Ldn dependent on the specified timeframe. The L eq (h) represents the average noise level overan hour. The Federal Transit Administration (FTA) land use area categories are defined in Table 1.
Institutional land uses that are only affected by noise during daytime operating hours, Category 3 under
the FTA guidelines, are measured as L eq (h). When determining the potential for noise impacts, L eq (h) iscalculated for the peak noise hour of the day. Residential land uses, Category 2 under the FTAguidelines, are reported as L dn, a cumulative 24-hour noise descriptor. To account for increased noisesensitivity in places where people sleep at night, nighttime noise (10:00 p.m. to 7:00 a.m.) is increasedby 10 dB.
TABLE 1. Land Use Categories and Metrics for Transit Noise Impact Criteria
Land Use Category
Noise Metric (dBA)
Description of Land Use Category
1 Outdoor L eq (h)*
Tracts of land where quiet is an essential element in theirintended purpose. This category includes lands set aside for
serenity and quiet, and such land uses as outdooramphitheaters and concert pavilions, as well as National Historic Landmarks with significant outdoor use. Alsoincluded are recording studios and concert halls.
2 Outdoor L dn Residences and buildings where people normally sleep.This category includes homes, hospitals and hotels where anighttime sensitivity to noise is assumed to be of utmostimportance.
3 Outdoor L eq (h)*
Institutional land uses with primarily daytime and eveninguse. This category includes schools, libraries, theaters, andchurches where it is important to avoid interference withsuch activities as speech, meditation and concentration onreading material. Places for meditation or study associatedwith cemeteries, monuments, museums, campgrounds and recreational facilities can also be considered to be in thiscategory. Certain historical sites and parks are alsoincluded.
* Leq for the noisiest hour of transit-related activity during hours of noise sensitivity.
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All land use category impact levels are a function of the existing noise exposure versus the project noiseexposure; meaning that the higher the existing noise levels, the more noise a proposed project mustproduce in order to impact surrounding properties. As Figure 2 illustrates, the combinations can result ineither no impact, a moderate impact, or a severe impact. Noise impact criteria vary by land use asdescribed above in Table 1 .
FIGURE 2. Noise Impact Criteria for Transit Projects(Source: FTA Transit Noise and Vibration Impact Assessment)
Screening Procedure
The purpose of the rail transit noise screening procedure is to identify areas with potential noise impactsfrom the proposed facility. Two screening distances were used to determine the rail noise screeningarea for the proposed maintenance facility. FTA provides an unobstructed screening distance of 1,000feet for yard and shop facilities. The screening distance of 1,000 feet was applied to the outer boundaryof the proposed facility, excluding the lead tracks. The screening distance for the lead tracks at theeastern and western extents of the proposed facility was determined based on the proposed operationsof the fixed guideway system. The parameters used for calculating the screening distance from the lead
tracks are listed below:
18 train sets with 1 or 2 locomotives traveling on the lead tracks during nighttime hours Trains traveling at speeds of 15 miles per hour
FTA specifies that the appropriate noise screening distance is the distance where the project noisereaches 50 dBA. A screening distance of 600 feet from the lead tracks was determined using the FTAguidelines for a fixed guideway system. The noise screening area was mapped to determine the noise-
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sensitive land uses that are located within the screening distance. The screening area, which shows thecombined 1,000-foot screening distance for the maintenance facility and the 600-foot screeningdistance for the lead tracks, is shown in Figure 3 .
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Furnace BayGolf Course
2 Mill CreekRoad
North WoodlandFarm Lane
1 0 9 6 / 1 0
9 8 P r i n
c i p i o F u r n a
c e R o a
d
6 5 S o u
t h W o o d
l a n d F
a r m L a
n e
B R O A
D S T
P R I N C
I P I O F U
R N A C
E R D
P U L A S
K I H W Y
I K E A W A Y
C O U D O N B L V D
C E C I L A V E
M I L L
C R E E K R D
P E R R Y V I L L E
R D
M A R Y L A N D
A V E
F I R E S T O N E R D
P R I N C I P I O
S T A T I O N R D
P U L A S
K I H W Y
Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, and the GIS User Community
LEGEND:
RECEIVER
NOISE SCREENING AREA
NOISE SENSITIVE AREA
NORTHEAST CORRIDOR MARYLAND TRANSIT ADMINISTRATIONPERRYVILLE MARC MAINTENANCE AN
STORAGE FACILITY
NOISE SENSITIVE AREASAND RECEIVER SITES
FIGURE 3
0 1,250 2,500625FEET
1 INCH = 1,250 FEETSCALE:
SUSQUEHANNA RIVER
PERRYVILLE A
Sources: Esri, DeLorme,NAVTEQ, USGS, In termapiPC, NRCAN, Esri Japan,METI, Esri China (Hong
SITE LOCATION MAP
1 in = 6 milesScale:
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Noise sensitive land uses within the noise screening area include:
Area 1: Residences at 1096 and 1098 Principio Furnace Road Area 2: Residence at 2 Mill Creek Road Area 3: Residence at 64 Woodlands Farm Lane South
Area 4: Residence at 93 Mill Creek Lane (Woodlands) Area 5: Furnace Bay Golf Course Area 6: Residence at 311 Charter Hill Road Area 7: Residence at 1323 Principio Furnace Road
Areas 1 through 4 and areas 6 and 7 are classified as Category 2 land uses as they are residences. Theonly non-residential land use identified was the Furnace Bay Golf Course which is a Category 3. Althoughhistorical sites (such as Woodlands in Area 3) are often considered Category 3 land uses because theyoperate as daytime museums, Woodlands is considered to be a Category 2 land use because it functionsas a private residence. Any zoning changes that may occur after this report may result in a change to theland use categories and therefore may affect the results. A map of the noise sensitive land use areas andrepresentative existing measurement receiver location is shown on Figure 3 .
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General Rail Noise Assessment
The purpose of the general rail noise assessment is to determine the extent and severity of predictednoise impacts at the noise sensitive land uses identified during the rail noise screening procedure. Theoperational characteristics of the proposed facility and the propagation path between the facility and
noise sensitive land uses were accounted for in the noise impact assessment.
All noise impact analysis calculations were conducted within the FTA noise impact analysis spreadsheetsas required by the FTA guidelines. While the frequency and timing of events, speed, and distance fromthe noise source are all project specific parameters, at this level of analysis, noise emissions fromcommon maintenance equipment within a rail yard and shop is accounted for collectively in thereference level provided in the FTA Noise and Vibration Manual for Yards and Shops. The reference levelincludes the following noise producing activities:
Locomotive and railcar passbys
Locomotives Idling Squeal on tightcurves
Horns Warning Signals
Coupling /uncoupling Auxiliary equipment
Crossovers/switches Break squeal
Air release
This reference value is adjusted within the FTA impact analysis spreadsheets to account for distancesand movements that differ from the reference conditions. The FTA reference levels and conditions forstationary rail noise sources can be found in Table 2 below.
TABLE 2. Source Reference Levels at 50 feet from Center of Site Stationary Sources
SourceReferenceSEL (dBA)
Reference Conditions
Yards and Shops 118 20 train movements in peak activity hour
Layover Tracks 109One train with diesel locomotive idling for onehour
Crossovers 100 One train
Crossing Signals 109 3600 seconds duration
(Source: FTA Transit Noise and Vibration Impact Assessment)
It was determined that proposed MARC Maintenance and Train Storage Facility would have three main
noise sources: A fixed guideway with diesel electric locomotives Stationary source commuter rail layover tracks Stationary source rail yard and shop
The general assessment calculations for the proposed MARC Maintenance and Layover Facility wereadjusted for the maximum potential movements of the proposed locomotives to be maintained. Theestimated future hours of operations are not anticipated to change between the proposed project and
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the potential future expansion operations. Peak hour operations were estimated at 5 locomotivemovements for the project and 27 locomotive movements during the maximum likely potentialexpansion to account for the daily start up, inspection and idling of the maximum number of diesellocomotive stored on the facility layover tracks during nighttime and non-peak daytime hours. Nighttimenoise levels, 10:00 p.m. to 7:00 a.m. estimates were increased by 10 dB(A) as required by the FTAguidelines. The lead tracks into and out of the facility were evaluated as a fixed rail guideway operatingbetween 4:00 a.m. and 7:00 a.m. for departures and again between 7:00 p.m. and 12:00 a.m. forarrivals.
Existing noise exposure at noise sensitive land uses identified during the noise screening procedure weredetermined by taking five, 24-hour noise measurements at representative receptor locations withineach noise-sensitive land use area. The L dn was calculated from the 24 hourly L eq(h) values, for Category 2testing sites. For the one Category 3 test site, the Furnace Bay Golf Course, the peak hour L eq(h) was usedas recommended by the FTA guidelines. The peak hour used in the analysis for the Furnace Bay GolfCourse was 9:00 p.m. During the 24-hour noise measurement at the Golf Course, the 9:00 p.m. hour hadthe loudest noise volume. The measured values were input as the existing noise levels in the FTA noiseimpact analysis spreadsheets for each individual measurement location. Distances between the
receptor sites and the noise source were calculated from the midline of the tracks for the fixedguideway and from the center of the proposed facility for the yard and shop related noise sources.Shielding attenuation was not accounted for since there were no intervening barriers between thefacilities and the receptor sites. Data used in the rail spreadsheet are located in Appendix A.
NOISE IMPACT ANALYSIS RESULTS
Proposed ProjectOne (1) residential, representative receptor site would experience severe noise impacts under theproposed project conditions. The impact would occur at the 65 Woodland Farm Lane South site. ExistingLdn at 65 Woodland Farm South would be 59 dB(A). The proposed conditions would increase noise levels10 dB(A) over current sound levels, resulting in a total noise exposure of 69 dB(A). No other residentialproperties would experience noise impacts.
The Category 3 receptor site at Furnace Bay Golf Course would not be impacted under the FTA criteria.The golf course would experience a 1 dB(A) increase over existing noise levels under the proposedproject conditions, resulting in a total noise exposure of 59 dB(A). Predicted total noise exposure andimpact levels for each receptor can be found in Table 3 .
TABLE 3. Receptor Locations, Existing Noise Level and Proposed Project Predicted Impacts
ReceptorNumber
LocationLandUse
Category
ExistingConditions,Measured
SoundLevel 1
PredictedProjectNoise
Exposure(dB[A])
PredictedTotalNoise
Exposure(dB[A])
IncreaseOver
Existing(dB[A])
FTAImpactLevel
1Farmhouse, 65
Woodland Farm LaneSouth
2 59 63 65 6 Severe
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TABLE 3. Receptor Locations, Existing Noise Level and Proposed Project Predicted Impacts
ReceptorNumber
LocationLandUse
Category
ExistingConditions,Measured
SoundLevel 1
PredictedProjectNoise
Exposure(dB[A])
PredictedTotalNoise
Exposure(dB[A])
IncreaseOver
Existing(dB[A])
FTAImpactLevel
2Residences, 1096 &
1098 PrincipioFurnace Road
2 59 53 60 1 None
3House (Woodlands),
Woodlands Farm LaneNorth
2 60 48 60 0 None
4House, 2 Mill Creek
Road2 55 49 56 1 None
5Furnace Bay Golf
Course3 58 49 59 1 None
6 311 Charter Hill Road 2 52 46 53 1 None
7 1323 PrincipioFurnace Road 2 60 48 60 0 None
1. All Category 2 levels are shown as Ldn with units in A-weighted decibels (dB[A]). All Category 3 Sound Levelsare shown as hourly equivalent sound levels (Leq[h]) with units in A-weighted decibels (dB[A]).
NOTE: Any topographical changes to the project site for landscape purposes were not included in this analysis.
Based on the measured existing sound levels and FTAs Noise Impact Criteria for Transit Projects, it isdetermined that Severe Noise Impacts would occur for this project at the 65 Woodland Farm Lane Southlocation. Because MTA proposes to purchase this property and cease residental use, no further noisemitigation is recommended fir this project.
Potential ExpansionTwo residential properties would experience no noise impacts, two of the properties will experience amoderate noise impact and one property will experience a severe noise impact under the proposedconditions. The most severe impacts would occur at the 65 Woodland Farm Lane South site. Existing L dn at 65 Woodland Farm South was 58 dB(A). The proposed conditions would increase noise levels 16 dB(A)over current sound levels, resulting in a total noise exposure of 75 dB(A). 1096 Principio Furnace Roadand 2 Mill Creek would both experience moderate noise impacts with an increase from existing levels of5 dB(A) and 4 dB(A) respectively. Woodland Farm Lane North would experience a predicted noise levelincrease of 1 dB(A) over existing levels and would not be impacted under the FTA criteria.
The Category 3 receptor site at Furnace Bay Golf Course would not be impacted under the FTA criteria.The golf course would experience a 3 dB(A) increase over existing noise levels under the Phase IIproposed conditions, which would result in a total noise exposure of 61 dB(A). Predicted total noiseexposure and impact levels for each receptor can be found in Table 4 .
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TABLE 4. Receptor Locations, Existing Noise Level and Potential Expansion PredictedImpacts
ReceptorNumber
LocationLandUse
Category
ExistingConditions,Measured
Sound
Level 1
PredictedProjectNoise
Exposure
(dB[A])
PredictedTotalNoise
Exposure
(dB[A])
IncreaseOver
Existing
(dB[A])
FTAImpactLevel
1Farmhouse, 65
Woodland Farm LaneSouth
2 59 71 71 12 Severe
2Residences, 1096 &
1098 PrincipioFurnace Road
2 59 60 62 3 Moderate
3House (Woodlands),
Woodlands FarmLane North
2 60 54 61 1 None
4House, 2 Mill Creek
Road2 55 56 58 3 Moderate
5Furnace Bay Golf
Course3 58 55 60 2 None
6 311 Charter Hill Road 2 52 51 55 3 None
71323 PrincipioFurnace Road
2 60 55 61 1 None
1. All Category 2 levels are shown as Ldn with units in A-weighted decibels (dB[A]). All Category 3 Sound Levelsare shown as hourly equivalent sound levels (Leq[h]) with units in A-weighted decibels (dB[A]).
NOTE: Any topographical changes to the project site for landscape purposes were not included in this analysis.
Based on the measured existing sound levels and FTAs Noise Impact Criteria for Transit Projects, MTAhas determined that Moderate to Severe Noise Impacts would occur. Because MTA intends to purchasethe severly impacted property at 65 Woodland Farm Lane and cease residential use, mitigation wouldnot be required by MTA.
Mitigation
MTA is not required to mitigate for moderate noise impacts. The severly impacted property at 65Woodland Farm Lane will be purchased by MTA and therefore does not require noise mitigation. Thereare no noise mitigation recommendation s for this project.
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General Noise AssessmentPerryville A MARC Northeast Maintenance Facility
Appendix A
Rail Impact Spreadsheets
June 2014
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ederal Transit AdministrationNoise Impact Assessment Spreadsheet
opyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 59 dBATotal Project Ldn: 63 dBA
Receiver Parameters Total Noise Exposure: 65 dBAReceiver: Woodland Farm Lane South Increase: 6 dB
Land Use Category: 2. Residential Impact?: SevereExist ing Noise (Measured or Generic Value): 59 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNu mb er o f No is e So ur ce s: 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 46.0 dBASpeed (mph) 15 Leq(night): 43.0 dBA
Avg. Nu mber of Ev ents/h r 2 Ldn: 50.0 dBA
Nightt ime hrs Avg. Number of Locos/train 1
Speed (mph) 15 Avg. Num ber o f Event s/hr 1
Distance Distance from Source to Receiver (f t) 873.99Number of Intervening Rows of Buildings 0
dju stm ents NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 2 Leq(day): 58.9 dBA40 Leq(night): 55.9 dBA
Ldn: 62.9 dBAIncremental Ldn (Src 1-2): 63.1 dBA
Nightt ime hrs Avg. Number of Trains/hr 1400.7
Distance Distance from Source to Receiver (f t) 251.19Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 5 Leq(day): 40.7 dBA
0 Leq(night): 40.7 dBALdn: 47.1 dBA
Incremental Ldn (Src 1-3): 63.2 dBANightt ime hrs Avg. Number of Trains/hr 5
0
Distance Distance from Source to Receiver (f t) 1343.06Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
63 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
Woodland Farm LaneSouth
6 dB
0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Mod er ate Impa ct Se ver e Impa ct Woo dl and Fa rm L an e S ou th
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ederal Transit AdministrationNoise Impact Assessment Spreadsheet
opyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 60 dBATotal Project Ldn: 48 dBA
Receiver Parameters Total Noise Exposure: 60 dBAReceiver: Woodland Farm Lane North Increase: 0 dB
Land Use Category: 2. Residential Impact?: NoneExist ing Noise (Measured or Generic Value): 60 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNu mb er o f No is e So ur ce s: 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 38.8 dBASpeed (mph) 15 Leq(night): 35.8 dBA
Avg. Nu mber of Ev ents/h r 2 Ldn: 42.8 dBA
Nightt ime hrs Avg. Number of Locos/train 1
Speed (mph) 15 Avg. Num ber o f Event s/hr 1
Distance Distance from Source to Receiver (f t) 2631.89Number of Intervening Rows of Buildings 0
dju stm ents NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 2 Leq(day): 36.9 dBA40 Leq(night): 33.9 dBA
Ldn: 40.8 dBAIncremental Ldn (Src 1-2): 44.9 dBA
Nightt ime hrs Avg. Number of Trains/hr 1400.7
Distance Distance from Source to Receiver (f t) 1908.88Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 5 Leq(day): 38.2 dBA
0 Leq(night): 38.2 dBALdn: 44.7 dBA
Incremental Ldn (Src 1-3): 47.8 dBANightt ime hrs Avg. Number of Trains/hr 5
0
Distance Distance from Source to Receiver (f t) 1676.6Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
48 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
Woodland Farm LaneNorth
0 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Mode rate Impa ct Se vere Impact Woodlan d Farm Lane North
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ederal Transit AdministrationNoise Impact Assessment Spreadsheet
opyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 55 dBATotal Project Ldn: 49 dBA
Receiver Parameters Total Noise Exposure: 56 dBAReceiver: 2 Mill Creek Increase: 1 dB
Land Use Category: 2. Residential Impact?: NoneExist ing Noise (Measured or Generic Value): 55 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNu mb er o f No is e So ur ce s: 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 40.7 dBASpeed (mph) 15 Leq(night): 37.7 dBA
Avg. Nu mber of Ev ents/h r 2 Ldn: 44.7 dBA
Nightt ime hrs Avg. Number of Locos/train 1
Speed (mph) 15 Avg. Num ber o f Event s/hr 1
Distance Distance from Source to Receiver (f t) 1976.39Number of Intervening Rows of Buildings 0
dju stm ents NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 2 Leq(day): 39.4 dBA40 Leq(night): 36.4 dBA
Ldn: 43.4 dBAIncremental Ldn (Src 1-2): 47.1 dBA
Nightt ime hrs Avg. Number of Trains/hr 1400.7
Distance Distance from Source to Receiver (f t) 1514.71Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 5 Leq(day): 39.2 dBA
0 Leq(night): 39.2 dBALdn: 45.6 dBA
Incremental Ldn (Src 1-3): 49.4 dBANightt ime hrs Avg. Number of Trains/hr 5
0
Distance Distance from Source to Receiver (f t) 1531.18Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
49 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
2 Mill Creek
1 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Moderate Impact Severe Impact 2 Mill Creek
8/10/2019 Appendix B - Noise Assessment Report
21/30
Federal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.
version: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Leqh: 58 dBATotal Project Leqh: 49 dBA
Receiver Parameters Total Noise Exposure: 59 dBAReceiver: Furnace Bay Golf Course Increase: 1 dB
Land Use Category: 3. Institutional Impact?: NoneExisting Noise (Measured or Generic Value): 58 dBA
Distance to Impact Contours
Dist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersN um be r o f N oi se So ur ce s: 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Noisiest hr of Number of Locos/train 1 Leqh: 47.7 dBAActivity During Speed (mph) 15Sensitive hrs Number of Events/hr 2
Distance Distance from Source to Receiver (ft) 670.06Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Noisiest hr of Number of Trains/hr 2 Leqh: 41.4 dBAActivity During 40Sensitive hrs
Incremental Leqh (Src 1-2): 48.6 dBA18400.7
Distance Distance from Source to Receiver (ft) 1262.3Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Noisiest hr of Number of Trains/hr 5 Leqh: 36.2 dBAActivity During 0Sensitive hrs
Incremental Leqh (Src 1-3): 48.9 dBA18
Distance Distance from Source to Receiver (ft) 2026.66Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
49 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L e q
h ( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
Furnace Bay Golf Course
1 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Moderate Impact Severe Impact Furnace Bay Golf Course
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22/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 52 dBATotal Project Ldn: 46 dBA
Receiver Parameters Total Noise Exposure: 53 dBAReceiver: 311 Charter Hill Road M6 Increase: 1 dB
Land Use Category: 2. Residential Impact?: NoneExisting Noise (Measured or Generic Value): 52 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 34.4 dBASpeed (mph) 15 Leq(night): 31.4 dBA
Avg. Number of Events/hr 2 Ldn: 38.4 dBA
Nighttime hrs Avg. Number of Locos/train 1
Speed (mph) 15Avg. Number of Events/hr 1
Distance Distance from Source to Receiver (ft) 5201Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 2 Leq(day): 24.7 dBA40 Leq(night): 21.7 dBA
Ldn: 28.7 dBAIncremental Ldn (Src 1-2): 38.8 dBA
Nighttime hrs Avg. Number of Trains/hr 1400.7
Distance Distance from Source to Receiver (ft) 5855Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 5 Leq(day): 39.2 dBA
0 Leq(night): 39.2 dBALdn: 45.6 dBA
Incremental Ldn (Src 1-3): 46.5 dBANighttime hrs Avg. Number of Trains/hr 5
0
Distance Distance from Source to Receiver (ft) 1531.18Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
46 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
311 Charter HillRoad M6
1 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Moderate Impact Severe Impact 311 Charter Hill Road M6
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23/30
ederal Transit AdministrationNoise Impact Assessment Spreadsheet
opyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 60 dBATotal Project Ldn: 48 dBA
Receiver Parameters Total Noise Exposure: 60 dBAReceiver: 1323 Principio Furnace Road Increase: 0 dB
Land Use Category: 2. Residential Impact?: NoneExist ing Noise (Measured or Generic Value): 60 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNu mb er o f No is e So ur ce s: 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 41.0 dBASpeed (mph) 15 Leq(night): 38.0 dBA
Avg. Nu mber of Ev ents/h r 2 Ldn: 45.0 dBA
Nightt ime hrs Avg. Number of Locos/train 1
Speed (mph) 15 Avg. Num ber o f Event s/hr 1
Distance Distance from Source to Receiver (f t) 1870Number of Intervening Rows of Buildings 0
dju stm ents NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 2 Leq(day): 37.9 dBA40 Leq(night): 34.9 dBA
Ldn: 41.9 dBAIncremental Ldn (Src 1-2): 46.7 dBA
Nightt ime hrs Avg. Number of Trains/hr 1400.7
Distance Distance from Source to Receiver (f t) 1737Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 5 Leq(day): 36.5 dBA
0 Leq(night): 36.5 dBALdn: 42.9 dBA
Incremental Ldn (Src 1-3): 48.3 dBANightt ime hrs Avg. Number of Trains/hr 5
0
Distance Distance from Source to Receiver (f t) 1965Number of Intervening Rows of Buildings 0
dju stm ents Noise Bar rier ? NoNoNoNo
48 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
1323 PrincipioFurnace Road
0 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Moder ate Impact Severe Impact 1323 Principio Furn ace Ro ad
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24/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 59 dBATotal Project Ldn: 71 dBA
Receiver Parameters Total Noise Exposure: 71 dBAReceiver: Woodland Farm Lane South Increase: 12 dB
Land Use Category: 2. Residential Impact?: SevereExisting Noise (Measured or Generic Value): 59 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 52.5 dBASpeed (mph) 15 Leq(night): 50.8 dBA
Avg. Number of Events/hr 9 Ldn: 57.5 dBA
Nighttime hrs Avg. Number of Locos/train 1
Speed (mph) 15Avg. Number of Events/hr 6
Distance Distance from Source to Receiver (ft) 873.99Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 9 Leq(day): 65.4 dBA40 Leq(night): 63.7 dBA
Ldn: 70.4 dBAIncremental Ldn (Src 1-2): 70.6 dBA
Nighttime hrs Avg. Number of Trains/hr 6400.7
Distance Distance from Source to Receiver (ft) 251.19Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 13 Leq(day): 44.8 dBA
0 Leq(night): 44.8 dBALdn: 51.2 dBA
Incremental Ldn (Src 1-3): 70.6 dBANighttime hrs Avg. Number of Trains/hr 13
0
Distance Distance from Source to Receiver (ft) 1343.06Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
71 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
Woodland Farm LaneSouth
12 dB
0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Mo der ate Imp ac t Se ver e I mp ac t Woo dl and Fa rm L an e So uth
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25/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 59 dBATotal Project Ldn: 60 dBA
Receiver Parameters Total Noise Exposure: 62 dBAReceiver: 1098 Principio Furnace Road Increase: 3 dB
Land Use Category: 2. Residential Impact?: ModerateExisting Noise (Measured or Generic Value): 59 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 49.8 dBASpeed (mph) 15 Leq(night): 48.1 dBA
Avg. Number of Events/hr 9 Ldn: 54.8 dBA
Nighttime hrs Avg. Number of Locos/train 1
Speed (mph) 15Avg. Number of Events/hr 6
Distance Distance from Source to Receiver (ft) 1320Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 9 Leq(day): 52.1 dBA40 Leq(night): 50.3 dBA
Ldn: 57.0 dBAIncremental Ldn (Src 1-2): 59.1 dBA
Nighttime hrs Avg. Number of Trains/hr 6400.7
Distance Distance from Source to Receiver (ft) 859.51Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 13 Leq(day): 44.4 dBA
0 Leq(night): 44.4 dBALdn: 50.8 dBA
Incremental Ldn (Src 1-3): 59.7 dBANighttime hrs Avg. Number of Trains/hr 13
0
Distance Distance from Source to Receiver (ft) 1392.14Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
60 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
1098 PrincipioFurnace Road
3 dB
0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
M od er at e I mp ac t S ev er e I mp ac t 1 09 8 P ri nc ip io F ur na ce R oa d
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26/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 60 dBATotal Project Ldn: 54 dBA
Receiver Parameters Total Noise Exposure: 61 dBAReceiver: Woodland Farm Lane North Increase: 1 dB
Land Use Category: 2. Residential Impact?: NoneExisting Noise (Measured or Generic Value): 60 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 45.4 dBASpeed (mph) 15 Leq(night): 43.6 dBA
Avg. Number of Events/hr 9 Ldn: 50.3 dBA
Nighttime hrs Avg. Number of Locos/train 1
Speed (mph) 15Avg. Number of Events/hr 6
Distance Distance from Source to Receiver (ft) 2631.89Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 9 Leq(day): 43.4 dBA40 Leq(night): 41.6 dBA
Ldn: 48.3 dBAIncremental Ldn (Src 1-2): 52.4 dBA
Nighttime hrs Avg. Number of Trains/hr 6400.7
Distance Distance from Source to Receiver (ft) 1908.88Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 13 Leq(day): 42.4 dBA
0 Leq(night): 42.4 dBALdn: 48.8 dBA
Incremental Ldn (Src 1-3): 54.0 dBANighttime hrs Avg. Number of Trains/hr 13
0
Distance Distance from Source to Receiver (ft) 1676.6Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
54 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
Woodland Farm LaneNorth
1 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Mode rate Imp act Severe Impact Woodland Farm Lane North
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27/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 55 dBATotal Project Ldn: 56 dBA
Receiver Parameters Total Noise Exposure: 58 dBAReceiver: 2 Mill Creek Increase: 3 dB
Land Use Category: 2. Residential Impact?: ModerateExisting Noise (Measured or Generic Value): 55 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 47.2 dBASpeed (mph) 15 Leq(night): 45.5 dBA
Avg. Number of Events/hr 9 Ldn: 52.2 dBA
Nighttime hrs Avg. Number of Locos/train 1
Speed (mph) 15Avg. Number of Events/hr 6
Distance Distance from Source to Receiver (ft) 1976.39Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 9 Leq(day): 45.9 dBA40 Leq(night): 44.1 dBA
Ldn: 50.9 dBAIncremental Ldn (Src 1-2): 54.6 dBA
Nighttime hrs Avg. Number of Trains/hr 6400.7
Distance Distance from Source to Receiver (ft) 1514.71Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 13 Leq(day): 43.4 dBA
0 Leq(night): 43.4 dBALdn: 49.8 dBA
Incremental Ldn (Src 1-3): 55.8 dBANighttime hrs Avg. Number of Trains/hr 13
0
Distance Distance from Source to Receiver (ft) 1531.18Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
56 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
2 Mill Creek
3 dB
0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Moderate Impact Severe Impact 2 Mill Creek
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28/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Leqh: 58 dBATotal Project Leqh: 55 dBA
Receiver Parameters Total Noise Exposure: 60 dBAReceiver: Furnace Bay Golf Course Increase: 2 dB
Land Use Category: 3. Institutional Impact?: NoneExisting Noise (Measured or Generic Value): 58 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Noisiest hr of Number of Locos/train 1 Leqh: 54.3 dBAActivity During Speed (mph) 15
ensitive hrs Number of Events/hr 9
Distance Distance from Source to Receiver (ft) 670.06Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Noisiest hr of Number of Trains/hr 9 Leqh: 47.9 dBAActivity During 40
ensitive hrsIncremental Leqh (Src 1-2): 55.2 dBA
18400.7
Distance Distance from Source to Receiver (ft) 1262.3Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Noisiest hr of Number of Trains/hr 13 Leqh: 40.3 dBA
Activity During 0ensitive hrs
Incremental Leqh (Src 1-3): 55.3 dBA18
Distance Distance from Source to Receiver (ft) 2026.66Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
55 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s
u r e
/ L e q
h ( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
Furnace Bay Golf Course
2 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Moderate Impact Severe Impact Furnace Bay Golf Course
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29/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 52 dBATotal Project Ldn: 51 dBA
Receiver Parameters Total Noise Exposure: 55 dBAReceiver: 311 Charter Hill Road Increase: 3 dB
Land Use Category: 2. Residential Impact?: NoneExisting Noise (Measured or Generic Value): 52 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 40.9 dBASpeed (mph) 15 Leq(night): 39.2 dBA
Avg. Number of Events/hr 9 Ldn: 45.9 dBA
Nighttime hrs Avg. Number of Locos/train 1
Speed (mph) 15Avg. Number of Events/hr 6
Distance Distance from Source to Receiver (ft) 5201Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 9 Leq(day): 31.2 dBA40 Leq(night): 29.5 dBA
Ldn: 36.2 dBAIncremental Ldn (Src 1-2): 46.3 dBA
Nighttime hrs Avg. Number of Trains/hr 6400.7
Distance Distance from Source to Receiver (ft) 5855Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 13 Leq(day): 43.4 dBA
0 Leq(night): 43.4 dBALdn: 49.8 dBA
Incremental Ldn (Src 1-3): 51.4 dBANighttime hrs Avg. Number of Trains/hr 13
0
Distance Distance from Source to Receiver (ft) 1531.18Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
51 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
311 Charter HillRoad
3 dB
0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
Moderate Impact Severe Impact 311 Charter Hill Road
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30/30
ederal Transit AdministrationNoise Impact Assessment SpreadsheetCopyright 2007 HMMH Inc.ersion: 7/3/2007
Project: Perryville A
Project Results Summary
Existing Ldn: 60 dBATotal Project Ldn: 55 dBA
Receiver Parameters Total Noise Exposure: 61 dBAReceiver: 1323 Principio Furnace Road Increase: 1 dB
Land Use Category: 2. Residential Impact?: NoneExisting Noise (Measured or Generic Value): 60 dBA
Distance to Impact ContoursDist to Mod. Impact Contour: ---Dist to Sev. Impact Contour: ---
Noise Source ParametersNumber of No is e S ou rces : 3
Noise Source Parameters Source 1Source Type: Fixed Guideway
Specific Source: Diesel Electric Locomotive Source 1 Results
Daytime hrs Avg. Number of Locos/train 1 Leq(day): 47.6 dBASpeed (mph) 15 Leq(night): 45.8 dBA
Avg. Number of Events/hr 9 Ldn: 52.5 dBA
Nighttime hrs Avg. Number of Locos/train 1
Speed (mph) 15Avg. Number of Events/hr 6
Distance Distance from Source to Receiver (ft) 1870Number of Intervening Rows of Buildings 0
Adjustments NoNoNoNo
Noise Source Parameters Source 2Source Type: Stationary Source
Specific Source: Layover Tracks (commuter rail) Source 2 Results
Daytime hrs Avg. Number of Trains/hr 9 Leq(day): 44.4 dBA40 Leq(night): 42.7 dBA
Ldn: 49.4 dBAIncremental Ldn (Src 1-2): 54.2 dBA
Nighttime hrs Avg. Number of Trains/hr 6400.7
Distance Distance from Source to Receiver (ft) 1737Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
Noise Source Parameters Source 3Source Type: Stationary Source
Specific Source: Rail Yard & Shops Source 3 Results
Daytime hrs Avg. Number of Trains/hr 13 Leq(day): 40.7 dBA
0 Leq(night): 40.7 dBALdn: 47.1 dBA
Incremental Ldn (Src 1-3): 55.0 dBANighttime hrs Avg. Number of Trains/hr 13
0
Distance Distance from Source to Receiver (ft) 1965Number of Intervening Rows of Buildings 0
Adjustments Noise Barrier? NoNoNoNo
55 dBA
40
45
50
55
60
65
70
75
80
85
40 45 50 55 60 65 70 75 80
P r o
j e c
t N o
i s e
E x p o s u r e
/ L d n
( d B A )
Existing Noise Exposure (dBA)
Noise Impact Criteria (FTA Manual, Fig 3-1)
Moderate Impact
Severe Impact
1323 PrincipioFurnace Road
1 dB0
5
10
15
20
40 45 50 55 60 65 70 75 80 N o
i s e
E x p o s u r e
I n c r e a s e
( d B )
Existing Noise Exposure (dBA)
Increase in Cumulative Noise Levels Allowed (FTA Manual, Fig 3-2)
M od er at e I mp ac t S ev er e I mp ac t 1 32 3 P ri nc ip io F ur na ce R oa d
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