HomeMy WebLinkAboutRS_Traffic_Memo_Updated_200103.pdfJanuary 2nd, 2020
Mr. Dale Fonk
ADF Properties LLC
15007 Woodinville Redmond Road NE #A
Woodinville, WA 98072
Subject: Sunset Highlands Mixed-Use
The intent of this assessment serves to provide trip generation analysis for the proposed
development of a mixed-use building composed of 16 multi-family dwelling units and 2,075
square feet of commercial space in the city of Renton. The subject site is located on
undeveloped, 0.81-acre parcel #: 032305-9093. A description of the project summary is
provided below.
Proposed Project
Sunset Highlands Mixed-Use is a proposed mixed-use development composed of 16 multi-
family dwelling unit and 2,075 of commercial space on a 0.81-acre site located in the city
of Renton. The subject site is bordered to the north by NE Sunset Boulevard (SR-900).
Nearby land use is generally commercial and residential. Access to the property is
proposed via two existing curb cuts on NE Sunset Boulevard. A total on-site parking
supply of 29 spaces, 16 of which are provided within an at-grade parking garage, are
proposed. A site plan illustrating the overall configuration of the project is presented in
Figure 2 on the following page.
Figure 1: Aerial Vicinity
HEATH & ASSOCIATES, INC Transportation and Civil Engineering
2214 Tacoma Road Puyallup WA 98371 (253) 770 1401 Fax (253) 770 1473 heathtraffic.com 1
FIGURE 2
HEATH & ASSOCIATES
TRAFFIC AND CIVIL ENGINEERING SITE PLAN
SUNSET HIGHLANDS MIXED-USE
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Trip Generation
Trip generation is defined as the number of vehicle movements that enter or exit the
respective project site during a designated time period such as the PM peak hour or an
entire day. The magnitude of the anticipated vehicle trip generation for the proposed
project was derived from the Institute of Transportation Engineers (ITE) publication, Trip
Generation, 10th Edition. Consistent with the ITE Manual, apartment buildings between 3-
10 stories are defined under Land Use Code 221, Multifamily Mid-Rise. For the general
commercial space Land Use Code 820, Shopping Center was applied for trip forecasts as
no defined tenant has been secured. Dwelling units and square footage were used as the
input variables and average rates were used to determine trip ends. Table 1 below
summarizes anticipated vehicular movements for the average weekday daily trips (AWDT)
and the AM and PM peak hours.
Table 1: Project Trip Generation
Land Use Size AWDT AM Peak-Hour Trips PM Peak-Hour Trips
In Out Total In Out Total
Multi-Family 16 units 87 1 5 6 4 3 7
Shopping Center 2.1 ksf 79 1 1 2 4 4 8
Totals 166 2 6 8 8 7 15
HEATH & ASSOCIATES, INC Transportation and Civil Engineering
Based on the data presented in Table 1, the project is anticipated to generate 8 new AM
peak hour trips (2 in / 6 out) and 15 new PM peak hour trips (8 in / 7 out).
Proposed Access
Access to the site is proposed via two new entrances utilizing existing curb cuts on NE
Sunset Boulevard (see Figure 2). Assessments of the approximate driveway location were
made to establish whether sufficient entering sight distance (ESD) is available. Sight
distance requirements were obtained from AASHTO’s “A Policy on Geometric Design of
Highways and Streets, 7th Edition, 2018” Green Book standards. The 35-mph NE Sunset
Boulevard would require 390 feet and 335 feet of unobstructed view for outbound left- and
right-turn movements, respectively. Based on preliminary measurements, no sight
deficiencies are identified. The roadway has slight vertical curvature and a horizontal
curve to the southwest but do not impede on the necessary sight line distances for safe
egress.
2214 Tacoma Road Puyallup WA 98371 (253) 770 1401 Fax (253) 770 1473 heathtraffic.com 3
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HEATH & ASSOCIATES, INC Transportation and Civil Engineering
Conclusion
The proposed Sunset Highlands Mixed-Use development consists of 16 multi-family
dwelling units and 2,075 square feet of commercial space within undeveloped parcel #:
032305-9093, located in the city of Renton. The subject site is bordered to the north by
NE Sunset Boulevard. Based on ITE data, the project can be anticipated to generate
approximately 8 AM and 15 PM peak hour trips. A site plan illustrates two proposed
access points on NE Sunset Boulevard. Sight lines are anticipated to be met.
The Sunset Highlands Mixed-Use project is subject to paying Traffic Impact Fees (TIF)
based on the city of Renton requirements. Based on the City’s 2019-2020 Fee Schedule,
fees are assessed at a cost of $4,836.31 per multi-family dwelling unit. Total fees for the
residential component are therefore estimated at:
Multi-Family: 16 x $4,836.31 = $77,380.96
Fees associated with the proposed commercial space are subject to tenant use. Traffic
Impact Fees will be calculated by the City at the time of tenant improvement.
No other mitigations are identified at this time.
Please call if you require anything further.
Sincerely,
Gregary B. Heath, P.E., PTOE
2214 Tacoma Road Puyallup WA 98371 (253) 770 1401 Fax (253) 770 1473 heathtraffic.com 5
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