Bienniel Traffic Count & Annual Sound Survey '''''N
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Creighton
September 9, 2019 40
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Ms. Rebecca Wood
The Great Escape
P.O. Box 511
Lake George Road
Lake George, NY 12845
RE: 2019 Biennial Traffic Counts, US Route 9,Town of Queensbury,The Great Escape GEIS,CM Project No.
112-158
Dear Ms.Wood:
The Findings Statement for the Great Escape Generic Environmental Impact Statement(GEIS) included a traffic
monitoring plan,which was modified to every two years in 2016,the last report being in 2017.The traffic
monitoring plan requires that traffic counts be collected during the morning peak hours of the generator on a
typical Tuesday and Saturday in August at the following intersections:
• US Route 9/1-87 Exit 20 Northbound Ramps
• US Route 9/Gurney Lane(County Road 23)
Creighton Manning(CM)conducted intersection turning movement counts on Saturday,August 10,2019,and
Tuesday,August 20, 2019,from 9:30 a.m.to 11:30 a.m. at the above intersections. The peak hour counts are
shown on Figure 1. The GEIS indicates that the Great Escape is responsible for conducting annual traffic counts
to determine if the implementation of phased traffic improvements is warranted based on traffic volume
thresholds. Phase 3 improvements are required when the combined volume of traffic in the southbound
through lane and the eastbound right-turn lane at either of the above intersections reaches the traffic threshold
listed in the GEIS Findings Statement. A comparison between existing 2019 traffic volumes and Phase 3 volume
thresholds is provided in the following table.
Comparison of Traffic Counts and GEIS Thresholds
During the August Peak Hour of the Great Escape
Tuesday Entering Peak Hour Saturday Entering Peak Hour
Intersection Phase 3 Existing 2019 Phase 3 Existing 2019
Threshold Volumes Threshold Volumes
US Rt.9/1-87 Exit 20 NB
1,320 810 1,454 968
Ramps
US Rt.9/Gurney Ln 1,368 874 1,404 1,010
The combined existing traffic volumes in the southbound through lane and the eastbound right-turn lane at the
two subject intersections do not meet Phase 3 volume thresholds during the weekday and Saturday peak hours
of the generator. This analysis indicates that the Great Escape is not currently required to implement Phase 3
traffic improvements as stated in the GEIS.
Creighton Manning Engineering, LLP 12 Winners Circle I Albany, NY 12205 1518.446.0396 I www.cmellp.com
Please call if you have any questions regarding the traffic count data.
Respectfully submitted,
Creighton
-Manning
�Engineering, LLP
Kenneth Wersted, P.E., PTOE
Associate
Attachments
Cc: Charles Dumas, Lemery Greisler, LLC
Kevin Franke,The LA Group
John Strough—Town of Queensbury
X:\Old Projects\2012\112-158 GE Annual Traffic Monitoring\documents\traffic monitor 2019.docx
Creighton
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Page 2
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& HEALTH
Ms. Rebecca Wood, President
Six Flags Great Escape Theme Park and Lodge
1172 State Route 9
Queensbury, NY 12804
RE: Annual Community Sound Survey — 2019
Six Flags Great Escape Theme Park and Lodge
FILE: 14257/73400
Date August 28,2019
Dear Ms. Wood:
O'Brien & Gere Engineers, Inc., a Ramboll company (Ramboll) is pleased to
provide this report of the 2019 community sound level survey for the Six Flags
Great Escape Theme Park and Lodge (Park) in Queensbury, New York. The
purpose of the survey is to provide annual sound monitoring as required in the
Park's 2001 approval for expansion. Survey methodology and results are Ramboll
presented below. 333 West Washington Street
Syracuse, NY 13202
USA
Methodology
T 315-956-6100
The methodology was consistent with sound surveys conducted for the Park for F 315 463 7554
https://ramboll.com
the past several seasons. A-weighted and octave band sound level measurements
were conducted at four locations surrounding the Park. The locations are
presented in Figure 1 and identified below:
• Courthouse Estates (ML-N),
• Twicwood Estates (ML-S),
• Glen Lake Shore near the driveway entrance to 86 Ash Drive (ML-AD), and
• Great Escape West — Park parking lot west of Route 9 and south of Martha's
(ML-PL).
Three of the monitoring sites were located in the community surrounding the
Park. ML-N was located on the corner of Hawthorne Road and Northwood Drive,
and characterizes private residences in the Courthouse Estates community north
of the Park. ML-S was located on a cul-de-sac at the end of Greenwood Lane and
characterizes private residences in the Twicwood community south of the Park.
ML-AD was located next to the driveway entrance to a private residence adjacent
to the southwest shore of Glen Lake and characterizes residences along the
shoreline of Glen Lake. The fourth site, ML-PL, was located in a Great Escape
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RAMB LL
parking lot between Route 9 and Interstate 87 (I-87), southwest of the Park, and characterizes sound
levels along Route 9 west of the Park.
At each of the four monitoring locations, sound levels were measured during the following three
scenarios: 1) Park operating, weekday (August 2); 2) Park closed (August 3, morning); and 3) Park
operating, weekend (August 3). For each scenario, sound levels were measured for a 20-minute period
using a portable Type I sound level meter (analyzer) with integral 1/3 octave band filter. The analyzer
measured A-weighted and 1/3 octave band sound levels at a rate of 32 samples per second, and
automatically stored time-averaged data into memory. During each measurement period, notes were
made onto field forms documenting weather conditions, intrusive noise sources, and traffic, as
applicable. All measurements were conducted while winds were calm to light (<5 mph) and there was
no rain.
Results
Results of the sound survey are presented in Table 1 and field observations are summarized in Table 2.
Field data forms are in Attachment 1, and copies of calibration certificates are in Attachment 2. As
indicated in Table 1, near-continuous (background) sound levels (L9o) at the three community
monitoring locations ranged from 38 to 45 dBA while the Park was open and from 37 to 41 dBA while
the Park was closed. Energy-average sound levels (Leg) at the community monitoring locations ranged
from 44 to 53 dBA during the day when the Park was open, and from 45 to 49 dBA when the Park was
closed.
Notes on audible Park sound during measurements when the Park was open indicate the following:
• Courthouse Estates - The Park was audible (coaster sounds) at times during both the weekday
measurement and weekend measurement at a maximum of 1 to 2 dBA above the average
background sound level.
• Twicwood Estates - The Park was not audible during either weekday or weekend measurements
• Glen Lake -The Park was audible (ride sounds) at times during the weekday measurement up to 1
to 5 dBA above the average background sound level. the Park was also discernable during the
weekend measurement, but at no observable increase over the background sound level.
A tabulated comparison of 2019 background sound levels with 2017 and 2018 results is presented in
Table A.
Table A. Background Sound Level Summary - 2017 to 2019
Sound Background Sound Level (L90 in dBA)
Measurement Park Operating Park Closed
Location (ID) Weekday Weekend Weekenda
2017 2018 2019 2017 2018 2019 2017 2018 2019
Courthouse Estates (ML-N) 42 45 45 46 44 43 45 40 41
Twicwood (ML-S) 42 44 43 44 42 41 43 38 39
Glen Lake (ML-AD) 40 43 40 41 40 38 40 37 37
Community Average 41 44 43 44 42 41 43 38 39
Great Escape West (ML-PL) 51 54 53 52 52 52 49 46 49
a Sound levels measured on a Saturday morning before the Park opened.
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Overall at the three community locations, 2019 background sound levels during Park operation
averaged within one dBA of the average sound level range measured during 2017 and 2018. When the
Park was closed, average background sound levels for the three community monitoring locations in
2019 were within one dBA of the range of sound levels measured in 2017 and 2018.
At ML-PL, background and energy-average sound levels were higher than at the community monitoring
locations due to the location's closer proximity to the Park, Route 9, and Interstate. Compared with
measurements from last two years, the 2019 background sound levels at ML-PL during park operation
were within the sound level ranges measured at ML-PL during 2017 and 2018.
We appreciate the opportunity to provide you these services. If you have any questions regarding this
report, please contact Scott Manchester at (315) 956-6410 or at scott.manchester@ramboll.com
Yours sincerely
O'Brien &Gere Engineers, Inc.
Gam/Z.
cott Manchester
PROJECT MANAGER-1
012-E&H AIR MONITORING RESOURCES
D 315-956-6410
M 315-506-2699
scott.manchester@ramboll.com
Attachments: Table 1 - Sound Level Measurement Results
Table 2 - Sound Survey Observations Summary
Figure 1 - Community Sound Survey Locations
Attachment 1 - Field Data Forms
Attachment 2 - Calibration Certificate
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