HomeMy WebLinkAboutEx19_Traffic Impact Analysis Jul 26, 2022 - 2:12pm lilyh M:\22\1.22268.00 - Renton Commercial Update\Graphics\DWG\Graphics_22268.dwg Layout: Site Vicinity
N 8TH ST
LOGAN AVE NN 4TH ST PARK AVE NN 6TH ST GARDEN AVE N1
2
A
X
X
Study Intersection
Site Access
LEGEND
Site Vicinity and Study Intersections FIGURE
1Renton TopGolf Phase 2
Site
Phase
2
Site
Phase
1
Existing Traffic Control and Channelization
Renton TopGolf Phase 2
FIGURE
3
Jul 26, 2022 - 2:12pm lilyh M:\22\1.22268.00 - Renton Commercial Update\Graphics\DWG\Graphics_22268.dwg Layout: Chan GARDEN AVE NN 8TH ST
PARK AVE NN 6TH STLOGAN AVE NSite
2
1
X Study Intersection
LEGEND
1 2Park Ave N
N 8th St
Park Ave N
N 6th St
Traffic Signal
1
Traffic Impact Analysis
Renton TopGolf Phase 2 March 2023
10
Traffic Operations
The following section summarizes the traffic operations for existing and future without-project
conditions for the off-site study intersections.
The operational characteristics of an intersection are determined by calculating the
intersection level of service (LOS). At signalized intersections, LOS is measured in average
control delay per vehicle and is typically reported using the intersection delay. Traffic
operations and average vehicle delay for an intersection can be described qualitatively with a
range of levels of service (LOS A through LOS F), with LOS A indicating free-flowing traffic
and LOS F indicating extreme congestion and long vehicle delays. Appendix A contains a
detailed explanation of LOS criteria and definitions.
According to the City of Renton Comprehensive Plan, the citywide level of service standard
for arterials and collectors (includes all roads within the study area) is LOS D.
Weekday peak hour traffic operations for existing and future without-project conditions were
evaluated at the study intersections based on the procedures identified in the Highway
Capacity Manual (HCM 6) and were evaluated using Synchro 11. Synchro 11 is a software
program that uses HCM methodology to evaluate intersection LOS and average vehicle
delays. Signal timing was assumed consistent with the existing timing for the Southport West
TIA recently completed in the vicinity. Analysis parameters such as lane channelization and
signal timing were maintained for future 2031 without-project conditions relative to existing
conditions.
Results for the existing and future without-project operations analyses are summarized in
Table 2. Detailed LOS worksheets for the existing and future without-project analysis are
included in Appendix B.
Table 2. Existing and Future Without-Project Weekday Peak Hour Intersection Operations
Existing 2031 Without-Project
Intersection LOS1 Delay2 LOS Delay
AM Peak Hour
1. Park Avenue N/N 8th Street C 22 C 26
2. Park Avenue N/N 6th Street B 18 B 16
PM Peak Hour
1. Park Avenue N/N 8th Street B 15 B 16
2. Park Avenue N/N 6th Street B 13 B 12
1. Level of Service (A – F) as defined by the 6th Edition Highway Capacity Manual (HCM), Transportation Research Board.
2. Average delay per vehicle in seconds.
Table 2 shows that under existing conditions, the study intersections operate at LOS C or
better during the weekday AM and PM peak hours, meeting the City’s LOS standard. With
the addition of background growth under future without-project conditions, both study
intersections are expected to continue operating at the same LOS as under existing
conditions, with increases in delay of up to 4 seconds.
Existing Weekday Peak Hour Traffic Volumes
Renton TopGolf Phase 2
FIGURE
4
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PARK AVE NN 6TH STLOGAN AVE N1
2
Park Ave N
N 8th St
(25) 70
(85) 215
(10) 30
(15) 20225
(310)
(70) 35
(15) 50
(35) 50
(5) 10
(30) 90
(40)
110
(25) 65
(50) 95
(5) 15
(15) 35
(25) 5205
(240)
(10) 5
(5) 5
(10) 5
(5) 5
(5) 5
(75)
295
(25) 15
Park Ave N
N 6th St12
X Study Intersection
(X) Weekday AM Peak
Hour Traffic Volumes
LEGEND
X Weekday PM Peak
Hour Traffic Volumes
Site
Future (2031) Without-Project Weekday Peak Hour Traffic Volumes
Renton TopGolf Phase 2
FIGURE
5
Jul 26, 2022 - 2:12pm lilyh M:\22\1.22268.00 - Renton Commercial Update\Graphics\DWG\Graphics_22268.dwg Layout: Baseline Vols GARDEN AVE NN 8TH ST
PARK AVE NN 6TH STLOGAN AVE N1
2
Park Ave N
N 8th St
(26) 77
(113) 280
(15) 51
(16) 21
302
(580)
(89) 58
(42) 70
(81) 82
(146) 43
(35) 116
(75)
324
(30) 72
(55) 106
(7) 18
(17) 40
(27) 6
296
(507)
(10) 3
(6) 3
(11) 1
(2) 1
(7) 2
(143)
562
(26) 16
Park Ave N
N 6th St12
(0)
X Study Intersection
(X) Weekday AM Peak
Hour Traffic Volumes
LEGEND
X Weekday PM Peak
Hour Traffic Volumes
Site
Traffic Impact Analysis
Renton TopGolf Phase 2 March 2023
18
Future With-Project Traffic Operations
Future 2031 with-project study intersection operations were evaluated for the weekday PM
peak hour. Intersection LOS was calculated using the methodology described previously. The
without-project conditions are compared to the with-project conditions to understand the
potential traffic impacts of the proposed project. Table 6 summarizes the 2031 without- and
with-project intersection operations for the weekday peak hours. LOS worksheets are
included in Appendix B.
Table 6. Future Weekday Peak Hour Intersection Operations
Traffic
Control
2031 Without-Project 2031 With-Project
Intersection LOS1 Delay2 WM3 LOS Delay WM
AM Peak Hour
1. Park Avenue N/N 8th Street Signal C 26 - C 26 -
2. Park Avenue N/N 6th Street Signal B 16 - B 16 -
A. Park Avenue N/Site Access TWSC4 - - - A 9 EBR
PM Peak Hour
1. Park Avenue N/N 8th Street Signal B 16 - B 16 -
2. Park Avenue N/N 6th Street Signal B 12 - B 13 -
A. Park Avenue N/Site Access TWSC - - - B 10 EBR
1. LOS as defined by the HCM (TRB, 2016)
2. Average delay per vehicle in seconds.
3. Worst movement (WM) reported for side-street stop-controlled intersections. EBR=eastbound right-turn
4. Two-way Stop Control. Assumes 3/4 access, restricting the eastbound left-turn movement outbound from the site.
As shown in Table 6 with the addition of project traffic, the off-site study intersections are
anticipated to continue to operate at the at LOS C or better during both AM and PM peak
hours, meeting the City’s LOS standard with minimal increases in delay with the project.
Site Access Analysis
The proposed project includes a primary site access provided adjacent to the Phase 2 site via
Park Avenue N (see Figure 2). Additional access via Logan Avenue is also provided via
Phase 1 of the project. All accesses are proposed to be side-street stop controlled.
The traffic operations at the primary site driveway along Park Avenue N was evaluated under
future with-project conditions for the weekday AM and PM peak hours. The operational
analysis was consistent with the methodology described above. LOS worksheets are
included in Appendix B. As shown above in Table 6, the Park Avenue N site access is
anticipated to operate at LOS B or better, under future with-project conditions during the AM
and PM peak hours, meeting the City’s standards. In addition, 95th percentile vehicle queues
at the Park Avenue N site access (neither the northbound left-turn inbound nor the eastbound
right-turn outbound) are not anticipated to exceed 1 vehicle during both weekday AM and PM
peak hours.
Hotel Weekday Peak Hour Project Trip Distribution
Renton TopGolf Phase 2
FIGURE
6
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5%
5%
5%
20%
10%
30%
5%5%
N 8TH STLOGAN AVE NNE 3RD ST
N 4TH STPARK AVE NMA
P
L
E
V
A
L
L
E
Y
HW
Y
N 6TH STCedar R
iver
AIRPORT WAY
Lake Washington
RAINIER AVE SN 3RD ST
5%
LEGEND
XX%Trip Distribution
10%
NE P
A
R
K
D
R
Site
10%
10%
10%
15%
5%
5%5%
N 8TH STLOGAN AVE NNE 3RD ST
N 4TH STPARK AVE NMA
P
L
E
V
A
L
L
E
Y
HW
Y
N 6TH STCedar R
iver
AIRPORT WAY
Lake Washington
RAINIER AVE SN 3RD ST
10%
10%
Commercial Weekday Peak Hour Project Trip Distribution
Renton TopGolf Phase 2
FIGURE
7
Sep 16, 2022 - 11:14am aaronc M:\22\1.22268.00 - Renton Commercial Update\Graphics\DWG\Graphics_22268 9.15.2022.dwg Layout: Commercial Dist
10%
5%
5%
LEGEND
XX%Trip Distribution
NE P
A
R
K
D
R
Site
Weekday Peak Hour Project Trip Assignment
Renton TopGolf Phase 2
FIGURE
8
Feb 28, 2023 - 11:24am evanh \\srv-dfs-wa\Projects\22\1.22268.00 - Renton Commercial Update\Graphics\DWG\Graphics_22268 2.28.2023.dwg Layout: Project TripsGARDEN AVE NN 8TH ST
PARK AVE NN 6TH STLOGAN AVE N1
2
A
#REF!
N 8th St
(-1) -16
Park Ave N
N 6th St2
Park Ave N
Site Access
(1) 16
(-1)
-16
3
X
X
Study Intersection
Site Access
X Weekday PM Peak
Hour Project Trips
LEGENDA
(X) Weekday AM Peak
Hour Project Trips
Site
Park Ave N
N 8th St
(3) 3
-15(-16)
(27)
26
32(33)
(11) 11
(26)
27
Park Ave N
N 6th St12
Park Ave N
Site Access
(53) 53
(49) 47
(-16)
(-16)
-14
(43) 40
3
-15
A
Project TripsTopGolf Shifted TripsNO SH
I
F
T
S
A
T
INTER
S
E
C
TI
O
N
2
1
Future (2031) With-Project Weekday Peak Hour Traffic Volumes
Renton TopGolf Phase 2
FIGURE
9
Feb 28, 2023 - 11:24am evanh \\srv-dfs-wa\Projects\22\1.22268.00 - Renton Commercial Update\Graphics\DWG\Graphics_22268 2.28.2023.dwg Layout: Future VolsGARDEN AVE NN 8TH ST
PARK AVE NN 6TH STLOGAN AVE N1
2
A
Park Ave N
N 8th St
(29) 80
(113) 280
(14) 35
(16) 21
287
(564)
(89) 58
(42) 70
(81) 82
(146) 43
(35) 116
(102)
350
(30) 72
(55) 106
(7) 18
(17) 40
(27) 6
328
(540)
(10) 3
(6) 3
(11) 1
(2) 1
(18) 13
(169)
589
(26) 16
Park Ave N
N 6th St12
Park Ave N
Site Access
(54) 69
(49) 47
(669)
(115)
415
(43) 40
3
366
X
X
Study Intersection
Site Access
X Weekday PM Peak
Hour Traffic Volumes
LEGENDA
(X) Weekday AM Peak
Hour Traffic Volumes
Site
\