HomeMy WebLinkAboutRS_Traffic Study_191031_v1.pdfHEATH & ASSOCIATES, INC Transportation and Civil Engineering
2214 Tacoma Road Puyallup WA 98371 (253) 770 1401 Fax (253) 770 1473 heathtraffic.com
October 17, 2019
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
FIGURE 2
HEATH & ASSOCIATES
TRAFFIC AND CIVIL ENGINEERING SITE PLAN
SUNSET HIGHLANDS MIXED-USE
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HEATH & ASSOCIATES, INC Transportation and Civil Engineering
2214 Tacoma Road Puyallup WA 98371 (253) 770 1401 Fax (253) 770 1473 heathtraffic.com
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 826, Specialty
Retail Center from the 9th Edition manual 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
Specialty Retail 2.1 sq. ft. 120 0 0 0 3 3 6
Totals 207 1 5 6 7 6 13
Based on the data presented in Table 1, the project is anticipated to generate 6 new AM peak
hour trips (1 in/5 out) and 13 new PM peak hour trips (7 in/6 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.
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2214 Tacoma Road Puyallup WA 98371 (253) 770 1401 Fax (253) 770 1473 heathtraffic.com
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 6 AM and 13 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
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