Planning & Zoning Commission (linked)

Hesketh FA,
F. A. Hesketh
& Associates, Inc.
Civil & Traffic Engineers * Surveyors * Planners * Landscape Architects
February 20, 2024
Revised October 15, 2024
Best Brokers
49 Twin Lakes Drive
Waterford, CT 06385
Attn: Mr. Daniel DelGrosso
RE: _ Traffic Impact Report
Roberts Village Housing
430 Mohegan Ave Parkway (Route 32)
Waterford, CT
Our File: 23186
Dear Mr. DelGrosso:
Pursuant to your request our office has prepared this traffic impact report outlining the potential
traffic impact of a proposed 24 unit residential development known as Roberts Village on
property located at 430 Mohegan Ave Parkway, CT Route 32, in the Town of Waterford, CT.
The site proposed for development is shown in Figure 1. This letter presents our findings.
Proposed Development
The property proposed for development has frontage to Route 32 on the east as well as
frontage to the cul-de-sac of Roberts Court. The proposed development is depicted on site
plans prepared by Indigo Design, LLC. The plan depicts an extension of Roberts Court into the
property with a loop roadway that turns to the north and returns to itself. A total of 24 units are
proposed in 20 buildings located on the outside and the inside of the loop roadway. A total of
62 parking spaces are proposed. No access is proposed to Route 32.
Description of Area
Route 32 is a state-maintained roadway that originates at Route 82 in Norwich and extends in a
southerly direction, along the Thames River, past the subject site to its terminus in downtown
New London. Route 32 provides access to Route 2A and I-395 north of the site, and I-95 south
of the site. Across the site frontage Route 32 carries two travel lanes and wide shoulders in
6 Creamery Brook « East Granby, CT 06026 Tel 860.653.8000 ° Fax 860.844.8600
www.fahesketh.com

Mr. Daniel DelGrosso
February 20, 2024
Revised October 15, 2024
Page 2
each direction separated by a Jersey Barrier. The roadway is posted at 45 miles per hour in
each direction. Near the site, traffic signals are provided at Fitzgerald Avenue, north of the site,
and Benham Avenue, south of the site. Land use along Route 32, within Waterford is mainly
single family residential.
Roberts Court is a town-maintained roadway that originates at Senkow Drive and extends 300
feet to its terminus in a cul-de-sac at the subject property line. The roadway provides 30 feet of
pavement with a single lane in each direction. The roadway is unmarked and has no posted
speed limit. The roadway serves 7 single family residences.
Senkow Drive is a town-maintained roadway that originates at Route 32 and extends in a
westerly direction, a distance of approximately 800 feet, to its terminus at Old Norwich Road.
The roadway provides 32 feet of pavement with a single lane in each direction, separated by a
painted double yellow centerline. The roadway is posted at 25 miles per hour. Land use along
the roadway is single family residential. The Senkow Road approaches to Route 32 and Old
Norwich Road each operate under stop sign control.
Old Norwich Road originates at a signalized intersection with Route 32 and extends in a
southerly direction through Quaker Hill, past Senkow Drive and then continuing south into the
City of New London where the roadway takes on the name of Willams Street. The roadway
continues past Connecticut College and then interchanging with Route 32 and I-95. Old
Norwich Road provides a width varying from 26 to 35 feet with a single travel lane in each
direction, separated by a painted double yellow centerline. The roadway is posted at 30 miles
per hour.
Background Traffic
The Connecticut DOT maintains a traffic volume count program on all state highways and
some local roadways. Included in the database are counts on Route 32 south of Benham
Road and on Old Norwich Road at the New London Townline. The most recent counts
were conducted during March and April 2023. The count on Route 32 indicates an
average daily traffic volume (ADT) of 25,300 vehicles with peak hour volumes of 2,060
vehicles during the morning peak hour (7:00 a.m.) and 2,001 vehicles during the afternoon

Mr. Daniel DelGrosso
February 20, 2024
Revised October 15, 2024
Page 3
peak hour (5:00 p.m.). The count on Old Norwich Road indicates an average daily traffic
volume (ADT) of 3,200 vehicles with peak hour volumes of 242 vehicles during the
morning peak hour (8:00 a.m.) and 332 vehicles during the afternoon peak hour (4:00
p.m.). The ConnDOT counts are presented in Tables 1 and 2.
Our office arranged for the installation of an automated traffic volume counter on Senkow
Drive west of Robers Court during July 2022. The count indicates that Senkow Drive
carries a weekday ADT of 181 vehicles, with peak hour volumes of 15 vehicles during the
morning peak hour (8:00 a.m.) and 18 vehicles during the afternoon peak hour (3:00 p.m.).
This count is presented in Table 3.
In addition to the automated counts described above, manual turning movement counts
were conducted at the intersections of Route 32 with Fitzgerald Avenue, Roue 32 with
Benham Avenue, Route 32 at Senkow Drive and Old Norwich Road at Senkow Drive
during the morning and afternoon peak commuter periods. These counts were conducted
during October 2023. Figure 2 presents the observed traffic volumes.
A review of recent ConnDOT counts, pre Covid, indicates that traffic volumes have
decreased slightly on both Route 32 and Old Norwich Road between 2011 and 2023.
Therefore, no adjustment has been made to the observed volumes, other than to balance
between intersections where appropriate. The results are presented in Figure 3 as the
2026 background traffic volumes.
Site Generated Traffic
The Institute of Transportation Engineers (ITE) Trip Generation Report was consulted for the
purpose of estimating the trip generation of the proposed facility. Trip Generation presents trip
generation estimates for many land uses based on counts conducted at existing facilities
throughout the country. Included with the ITE database is Land Use Code (LUC) 210 — Single
Family Detached Housing. The data for this land use is presented in terms of the number of
units. Based on the ITE Data the proposed 24 unit development has a trip generation of 271
trips daily with a morning peak hour of 20 trips and an afternoon peak hour of 26 trips. The trip

Mr. Daniel DelGrosso
February 20, 2024
Revised October 15, 2024
Page 4
generation is summarized in Table 4.
For the purposes of this analysis, we project a directional distribution of 50% to and from the
north and 50% to and from the south. Due to the center median on Route 32, traffic to the site
will either need to execute a u-turn at one of the signalized intersections north and south of
Senkow Drive, or to utilize Old Norwich Road to approach from the south or to depart to the
north. Figure 4 presents the anticipated directional distribution of the site generated traffic for
the full build development.
Figure 5 depicts the site generated traffic based on this distribution. By adding the site
generated traffic to the background traffic, the combined traffic volumes upon completion of the
development can be determined. These volumes represent the 2026 combined traffic volumes
as presented in Figure 6.
Capacity Analysis
Capacity analyses were conducted for the background and combined traffic volumes for both
the morning and afternoon peak hours at each of intersections. The analysis was conducted
utilizing the intersection capacity analysis program called SYNCHRO. The analysis results are
shown in Table 5.
Route 32 at Fitzgerald Avenue - This is an existing, four-way signalized intersection with
Route 32 oriented in the north/south direction. Fitzgerald Avenue is oriented in the east/west
orientation. The northbound and southbound Route 32 approaches each provide a dedicated
left turn lane, one through lane and a shared through/right turn lane. The Fitzgerald Avenue
approaches each provide a single lane approach. The intersection is under signalized control
and operates with protected northbound and southbound advance left turns, followed by the
northbound and southbound through movements, followed by the eastbound and westbound
movements simultaneously.
Analysis indicates that the intersection operates at an overall LOS A during the morning and
afternoon peak hours under the background traffic volume conditions. With the introduction of

Mr. Daniel DelGrosso
February 20, 2024
Revised October 15, 2024
Page 5
the site generated traffic, the intersection will continue to operate at the same levels of service
as in the background conditions.
Route 32 at Benham Avenue - This is an existing, four-way signalized intersection with
Route 32 oriented in the north/south direction. Benham Avenue is oriented in the east/west
orientation. The northbound and southbound Route 32 approaches each provide a dedicated
left turn lane, one through lane and a shared through/right turn lane. The Benham Avenue
approaches each provide a single lane approach. The intersection is under signalized control
and operates with protected northbound and southbound advance left turns, followed by the
northbound and southbound through movements, followed by the eastbound and westbound
movements simultaneously.
Analysis indicates that the intersection operates at an overall LOS A during the morning and
afternoon peak hours under the background traffic volume conditions. With the introduction of
the site generated traffic, the intersection will continue to operate at the same levels of service
as in the background conditions.
Route 32 at Senkow Drive - This is an existing unsignalized “T” intersection. Route 32 is
oriented in the north/south direction. Senkow Drive approaches from the west. There is a
Jersey barrier in the center of Route 32, so only the southbound lanes are accessible from
Senkow Drive. Route 32 provides a two lane approach with a single through lane and a shared
through/right tun lane. Roue 32 operates free. Senkow Drive provides a single lane approach,
operates under stop sign control, and is restricted to right turn movements only.
Analysis indicates that under the background traffic volumes the southbound Route 32
approach operates at a LOS A during peak hours. The Senkow Drive approach operates at a
LOS C during peak hours. With the introduction of the site generated traffic, all approaches will
continue to operate at the same levels of service as in the background conditions.
Old Norwich Road at Senkow Drive - This is an existing unsignalized “T” intersection. Old
Norwich Road is oriented in the north/south direction. Senkow Drive approaches from the east.

Mr. Daniel DelGrosso
February 20, 2024
Revised October 15, 2024
Page 6
All approaches provide a single lane. The Senkow Drive approach operates under stop sign
control.
Analysis indicates that under the background traffic volumes the Old Norwich Road approaches
operate at a LOS A during peak hours. The Senkow Drive approach operates ata LOS A
during the morning peak hour and at a LOS B during the afternoon peak hour. With the
introduction of the site generated traffic, all approaches will continue to operate at the same
levels of service as under the background conditions.
Senkow Drive at Roberts Court - This is an existing unsignalized “T” intersection. Senkow
Drive is oriented in the east/west direction. Roberts Court approaches from the south. All
approaches provide a single lane. The Roberts Court approach operates under stop sign
control.
Analysis indicates under the background traffic volumes that the Senkow Drive approaches
operate at a LOS A and the Roberts Court approach operates at a LOS A during the morning
and afternoon peak hours. With the introduction of the site generated traffic all approaches will
continue to operate at the same levels of service as under the background conditions.
Driveway Location and Design
The proposed site driveway is an extension of Roberts Court. The driveway as proposed will
provide 24 feet of pavement with a single 12 foot lane for entering traffic and a 12 foot lane for
exiting traffic, separated by a painted double yellow centerline. We recommend that the
driveway approach to the cul-de-sac be striped with a stop bar and stop sign for traffic control.
Since the site driveway is an extension of Roberts Court, there are no sight line restrictions.
Accident Data
The University of Connecticut Crash Data Repository gathers and compiles traffic accident data
for all state highways and some maior local roadways. A list of accidents occurring in the area
from October 1°, 2020 through October 1%, 2023 was reviewed. The data is presented by mile
marker and includes information such as date, time, roadway and weather conditions, collision
types, and other variables.

Mr. Daniel DelGrosso
February 20, 2024
Revised October 15, 2024
Page 7
A 3-year accident history was compiled for Route 32 from a point 100 feet south of Benham
Avenue to a point 100 feet north of Fitzgerald Avenue and for the full length of Old Norwich
Road. No accidents were identified for either Senkow Drive or Roberts Court. A total of 31
accidents involving 59 vehicles occurred on Route 32 during the three year period reviewed.
Twelve accidents occurred at the intersection of Benham Avenue, six accidents at Senkow
Drive, and 13 accidents occurred at the intersection of Fitzgerald Avenue. 22 of the accidents
were rear end accidents, there was one angle accident, two sideswipe accidents, five accidents
involving fixed objects, and one involving a deer. 24 accidents were property damage only, five
involved a suspected minor injury, one involved a suspected serious injury, and one accident
was listed as a possible injury. There were no reported fatalities.
A total of eleven accidents involving 15 vehicles occurred on Old Norwich Road during the three
year period reviewed. There were two accidents recorded at the intersections of Benham Road,
one at Senkow Drive and no accidents at Fitzgerald Avenue. There were three rear end
accidents, one sideswipe accident and the remaining seven accidents involving fixed objects.
Six of the accidents were property damage only, three involved a suspected minor injury, and
two accidents were listed as a possible injury. There were no reported fatalities.
Sate Approvals
The proposed development provides less than 100,000 s.f. of floor area and has fewer than 200
parking spaces. Therefore, the development does not fall under the jurisdiction of the Office of
the State Traffic Administration (OSTA). Since the development does not propose any access
to a State Highway, it is not necessary to obtain an Encroachment Permit from the Connecticut
Department of Transportation’s District II Office.
Conclusions
Based on the low volume of site generated traffic and the calculated levels of service as outlined
in this report, it is my professional opinion that the local roadway network has sufficient capacity
to accommodate the traffic volumes associated with the proposed development. The site
access is proposed to Roberts Court, a very low volume roadway. The site driveway is properly
designed to accommodate the anticipated peak hour volumes.

Mr. Daniel DelGrosso
February 20, 2024
Revised October 15, 2024
Page 8
We appreciate the opportunity to provide this information to you. A representative from our firm
will be available to present testimony before local commissions if needed. If you require any
additional information, please do not hesitate to contact our office.
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cc: Mr. Joe Wren, Indigo Design, LLC
T:\23186\Traffic.2024.10.15.docx

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TABLE 1
ConnDOT TRAFFIC VOLUMES
Route 32 south of Benham Avenue
Station No. 154
20-Mar-23 21-Mar-23 22-Mar-23 23-Mar-23
Monday Tuesday Wednesday Thursday
NB SB Total NB $B Total NB SB Total NB SB Total
42:00 120 115 235 114 83 197 138 92 230
1:00 39 40 79 53 44 97 54 37 91
2:00 29 39 68 64 43 107 33 47 80
3:00 50 69 119 49 74 123 41 72 113
4:00 84 270 354 82 259 341 88 265 353
5:00 168 928 1096 172 944 1116 164 953 1117
6:00 412 1283 1695 416 1267 1683 428 1243 1671
7:00 785 1275 2060 695 1042 1737 819 930 1749
8:00 717 986 1703 594 1069 1663 703 1103 1806
9:00 558 731 1289 575 807 1382 590 851 1441
10:00 535 679 1214 §72 710 1282
11:00 645 651 1296 613 679 1292 625 724 1349
12:00 664 732 1396 683 765 1448 737 743 1480
1:00 756 759 1615 822 782 1604 825 806 1631
2:00 843 909 1752 818 996 1814 809 726 1535
3:00 835 906 1741 607 713 1320 794 935 1729
4:00 837 707 1544 1197 654 1851 640 706 1346
5:00 1048 854 1902 931 901 1832 1125 876 2001
6:00 722 556 1278 767 661 1428 711 613 1324
7:00 520 402 922 550 529 1079 601 436 1037
8:00 414 341 755 430 362 792 473 393 866
9:00 323 277 600 359 305 664 347 308 655
10:00 252 222 A474 339 246 585 288 246 534
11:00 341 163 504 361 158 519 351 181 §32
8200 7479 15679 11974 14166 26140 41712 14035 25747 3058 5593 8651
2023 ADT = 25,300 for station 151 in Waterford
T:\pf20139\DOTVOLS.Sta151.x/s

TABLE 2
ConnDOT TRAFFIC VOLUMES
Old Norwich Road at New London Town Line
Station No. 210
5-Apr-23 6-Apr-23
Wednesday Thursday
NB SB Total NB SB Total
12:00 13 5 18
1:00 3 6 9
2:00 2 0 2
3:00 2 1 3
4:00 2 18 20
5:00 10 37 47
6:00 21 99 120
7:00 39 159 198
8:00 71 171 242
9:00 72 105 177
10:00 72 90 162
11:00 91 110 201 89 105 194
12:00 88 86 174 88 105 193
1:00 96 90 186
2:00 147 108 255
3:00 201 125 326
4:00 199 133 332
5:00 144 119 263
6:00 97 65 162
7:00 75 43 118
8:00 60 35 95
9:00 52 19 71
10:00 20 12 32
11:00 15 8 23
1285 953 2238 484 901 1385
2023 ADT = 3,200 for station 210 in Waterford
T:\pf\20139\DOTVOLS.Sta210.xls

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Land Use Size
LUC: 210
Single Family Detached Housing
24 units
ADT
271
Table 4
Trip Generation Summary
Robert's Village Housing
430 Mohegan Ave Parkway (CT Route 32) - Waterford, CT
Enter
A.M. Peak Hour
Exit
15
Total
20
Enter
16
P.M. Peak Hour
Exit Total
10 26
T:\PROJECT\2023A-aka2023\2318x - Waterford Housing\TGEN.2023.11.01.xIsx

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Time Period
Route 32 and Benham
EB
WB
NB
SB
Left
Thru
Left
Thru
Overall:
A.M. Peak Hour
Background Traffic
LOS delay vic Queue
Ave
Cc 23.4 0.21 27
Cc 32.0 016 25
D 42.9 0.08 19
A 4.2 0.49 244
D 42.5 0.05 13
A 8.8 0.76 598
A 7.4 0.76
Route 32 and Fitzgerald Ave
EB
WB
NB
SB
Left
Thru
Left
Thru
Overall:
raArAN>S
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Route 32 and Senkow Drive
EB
SB
Thru
Right
Cc
A
A
Old Norwich Rd & Senkow Drive
WB
NB
SB
A
A
A
Senkow Drive & Roberts Court
A
A
A
02 0.02 0
26.4 0.03 11
27.55 0.07 18
3.2 0.39 223
27.3 002 8
6.5 0.62 #579
5.4 0.62
208 005 4
00 079 O
00 039 40
9.3 0.01 1
0.0 0.06 O
0.0 0.00 0O
0.0 0.00 0O
2.4 0.00 0
85 0.00 0
TAPROJECT
Table 5
Level of Service Summary
Robert's Village
Waterford, CT
P.M. Peak Hour
Combined Traffic
LOS delay vic Queue] LOS
Cc 23.4 0.21 27 Cc
Cc 32.0 0.16 25 Cc
D 43.1 0.10 21 D
A 44 0.49 253 A
D 43.2 0.10 23 D
A 8.9 0.76 608 A
A 7.6 0.76 A
A 0.3 0.04 0 Cc
Cc 26.4 0.03 11 Cc
Cc 25.6 0.07 19 Cc
A 3.3 0.40 224 A
Cc 27.3 0.02 8 Cc
A 7.4 0.90 #612 A
A 5.9 0.62 A
Cc 21.7 0.10 8 Cc
A 0.0 0.79 0 A
A 0.0 0.40 0 A
A 9.2 0.02 2 B
A 0.0 0.06 0) A
A 0.0 0.00 0 A
A 0.0 0.01 0 A
A 5.2 0.00 0 A
A 8.6 0.03 2 A
Background Traffic
delay vic Queue
30.4 0.24 37
34.8 0.10 22
43.5 0.13 28
6.8 0.67 570
42.9 0.07 19
5.0 0.53 365
6.5 0.67
24.6 0.08 21
23.7 0.10 22
28.2 0.17 32
7.7 0.64 #552
27.0 0.01 6
7.9 0.54 351
8.1 0.64
17.0 0.02 2
0.0 0.66 0
0.0 0.33 0
10.7 0.01 1
0.0 0.16 0
0.2 0.00 0
0.0 000 0O
4.8 0.00 0
8.4 0.00 0
23193 - Waterford Housing\lossum.2023.11.08.xls
LOS
> FUFYTVUNO
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Combined Traffic
delay vic Queue
30.4 0.24 37
34.8 0.10 22
44.8 0.23 465
9.1 0.69 602
43.9 0.15 33
8.0 0.57 387
93 0.69
24.8 0.11 25
23.4 0.10 22
25.1 018 34
7.9 0.64 #560
27.0 0.01 6
11.0 0.56 #483
96 0.64
17.6 0.05 4
0.0 0.66 0
00 0.34 0
10.4 0.02 2
0.0 0.16 0
0.3 0.00 0
0.0 0.01 0
6.9 0.01 1
86 0.02 1

APPENDIX