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STRIDE Bus Rapid Transit
South Renton Transit Center (SRTC) Site Plan Review, Conditional Use Permit, Master Site
Plan Review, and Lot Line Adjustment Application
Attachment 5a
Modifications Request
July 2024
Prepared by the
Design Management Plan Sound Transit
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South Renton Transit Center and Roadway Improvements
Project
Modifications Request
Renton Municipal Code (RMC) 4-9-250 provides the process and criteria to obtain a variance, waiver,
modification, or alternative from the requirements of the Title 4, Development Regulations.
As discussed in Section 4.3 of the Project Narrative and Code Review (Attachment 5), at the current level
of design it is anticipated that the project will require a modification from site bicycle parking and driveway
width standards (RMC 4-4-080). The site will not have bicycle parking located within 50 feet of a main
building entrance (RMC 4-4-080 (F)(11)(b)(v)). The site will have two driveways that exceed 30 feet in
width (RMC 4 -4-080(I)(3)(b)) and three driveways along Lake Avenue S instead of the allowed 2.5
driveways (RMC 4-4-080(I)(4)(C)). Table 1 provides the evaluation for how these modification requests
comply with this section.
Table 1. Project Compliance with RMC 4-9-250 – Variances, Waivers, Modifications, and Alternates
Land Use Code Requirement Evaluation of Compliance with Land Use Code
D. Modification Procedures
2. Decision Criteria: Whenever there are practical
difficulties involved in carrying out the provisions of
this Title, the Department Administrator may grant
modifications for individual cases provided he/she
shall first find that a specific reason makes the strict
letter of this Code impractical, that the intent and
purpose of the governing land use designation of the
Comprehensive Plan is met and that the modification
is in conformity with the intent and purpose of this
Code, and that such modification:
a. Substantially implements the policy direction of
the policies and objectives of the Comprehensive
Plan Land Use Element and the Community
Design Element and the proposed modification is
the minimum adjustment necessary to
implement these policies and objectives;
b. Will meet the objectives and safety, function,
appearance, environmental protection and
maintainability intended by the Code
requirements, based upon sound engineering
judgment;
c. Will not create substantial adverse impacts to
other property(ies) in the vicinity;
d. Conforms to the intent and purpose of the Code;
and
e. Can be shown to be justified and required for the
use and situation intended;
Yes, the project will comply with this requirement. Sound
Transit is requesting a modification from the bicycle
parking location specified in RMC 4-4-080(F), as well as
driveway width and total number per frontage
requirements specified in RMC 4-4-080(I). The proposed
bicycle parking locations are arguably code-compliant as-
is, since the bus canopies and shelter are the main
buildings on-site, but in an abundance of caution Sound
Transit is requesting a modification, nonetheless.
RMC 4-4-080(F) Modification for Bicycle Parking
Location
The site is not required to provide bicycle parking as there
is no onsite vehicular parking requirement. However, the
South Renton Transit Center (SRTC) will provide bike
parking, which is subject to the bike parking standards of
RMC 4-4-080(F)(11)(b). Bike parking will not meet the
standards of RMC 4-4-080(F)(11)(b)(v) as bike parking
will be more than 50 feet from any entrance to an
enclosed building onsite. This is because the proposed
core facilities and security buildings are not public
buildings. To better serve the public, specifically transit
users, proposed bicycle parking, as measured along the
most direct pedestrian access route, will be located within
10 feet of the nearest bus shelter at the east end of the
bus bays and will be located within 130 feet of the nearest
bus canopy at the west end of the bus bays.
Subpart a
This modification will be consistent with the Land Use
Element and the Community Design Element of the
Comprehensive Plan. Specifically, the modification
supports Policy L-2: “Support compact urban development
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Land Use Code Requirement Evaluation of Compliance with Land Use Code
to improve health outcomes, support transit use, maximize
land use efficiency, and maximize public investment in
infrastructure and services.” Providing bike parking within
50 feet of the core facilities and security building would
not serve the public interest, as bike parking would then
not be adjacent to the bus bays and convenient to transit
users. By siting bicycle parking near the transit center bus
bays, Sound Transit is encouraging bicycle/public transit
travel rather than non -motorized travel. Providing both
bike racks and lockers in a location convenient to transit
users demonstrates Sound Transit’s investment in public
infrastructure.
Subpart b
Placing bike parking along Rainier Avenue S and on one of
the transit center islands meets the objectives and safety,
function, appearance, environmental protection, and
maintainability of this subpart. Adequate space is provided
surrounding the bike parking for pedestrian movement.
Bicycle racks and lockers will be commercial grade and
adhere to City standards for bike parking. Having bike
parking within 50 feet of the proposed buildings would not
meet the objective for the function of bike parking, as it
would not be convenient for the transit users of the site.
The proposed locations are conveniently located for
transit users using the SRTC site and will avoid bicycle-
pedestrian circulation conflict on the transit center islands.
Subpart c
Subpart c is not applicable as the standard for distances
between bike parking and building entry is not primarily
intended to protect adjacent property owners from
adverse effects. However, the proposed bicycle parking
location will not encourage people to bike through
adjacent properties or otherwise adversely impact
adjacent properties.
Subpart d
Placing bike parking near/within the transit center islands
will meet the intent of the code by providing convenient
access to bicycle parking for transit users. By meeting the
letter of the code and placing bike parking within 50 feet
of the proposed core facility buildings, this would miss the
intent of the code, as bike parking would not be
conveniently located for transit users who are utilizing the
bus bays and shelters.
Subpart e
This modification is necessary to provide convenient
bicycle parking for transit users. The SRTC site will not
have public buildings as a focal point of the site for transit
users, but rather transit islands. The transit island area is
the area that needs to be served with bicycle parking.
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Land Use Code Requirement Evaluation of Compliance with Land Use Code
RMC 4-4-080(I) Modification for Driveway Standards
The site will require two of the driveways that will serve as
bus egress and ingress to exceed 30 feet, as specified in
RMC 4-4-080(I)(3)(b), by less than 4 feet. The site will
also require 3 driveways along Lake Avenue S instead of
the allowed 2.5 driveways per RMC 4-4-080(I)(4)(c)
(Attachment 16). The proposed driveway width is the
minimum width necessary to provide the adequate turning
radii of Sound Transit Bus Rapid Transit (BRT) Stride buse
and King County Metro (KCM) electric buses in order for
them to enter the site from Rainier Avenue S and exit the
site to Lake Avenue S. The number of proposed driveways
along Lake Avenue S are the minimum necessary to allow
for buses to enter and exit the transit center from Lake
Avenue S and to provide an entrance and exit on Lake
Avenue S for vehicles using the transit center parking lot.
The proposed driveway layout was analyzed for traffic
impacts, and it was determined that the proposed
driveway layouts would not cause significant level of
service impacts or require traffic mitigation to the
surrounding intersections when compared to the No Build
alternative (Attachment 36a through c).
Subpart a
This modification will be consistent with the Land Use
Element and the Community Design Element of the
Comprehensive Plan. Specifically, the modification
supports Policy L-2: “Support compact urban development
to improve health outcomes, support transit use, maximize
land use efficiency, and maximize public investment in
infrastructure and services.” While wider driveways and an
extra driveway are a small tradeoff in walkability, SRTC wil
be a transit center that will “support transit use” and will
help the City achieve its vision of transforming the area
into an area of “employment, and services are
accommodated in a compact urban form.” The bus
driveways on Rainier Avenue S will be signalized and no
wider than a standard intersection in the City. Per the
Rainier/Grady Junction Subarea Plan, the Rainier Avenue
and Hardie Avenue SW intersection is considered an
unsafe or poor-quality pedestrian crossing. The proposed
signalization for the driveways and this intersection will
improve safety for pedestrians. All other proposed
driveways will have marked crosswalks. Modifying this
requirement by less than 5 feet will not impact the area’s
ability to meet the policies and objectives of the
Comprehensive Plan and Rainier/Grady Subarea Plan.
Subpart b
These driveways will meet the safety, function,
appearance, environmental protection, and maintainability
goals of the code. All driveways will have marked
crosswalks and the driveways onto Rainier Avenue S at
Hardie Avenue SW will have signalization making it safer
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Land Use Code Requirement Evaluation of Compliance with Land Use Code
than a standard driveway for both pedestrians and
motorists, and also improving the baseline condition at the
intersection. The proposed modification is to allow
driveways to function adequately for bus egress and
ingress of the SRTC. The difference of less than 5 feet will
not be noticeable to the public and site frontage
improvements will greatly improve the overall aesthetic of
the site. Likewise, the exceedance of the driveway limit by
half a driveway along Lake Avenue S will not be noticeable
to the public, but the new sidewalk and frontage
improvements on Lake Avenue S will benefit the public
and overall aesthetic of the site. This design has been
analyzed for potential impacts to critical areas
documented in the Critical Areas Report (Attachment 27)
for this project.
Subpart c
This modification will not create adverse impacts to
properties in the vicinity. The potential walkability and
traffic safety impacts are addressed previously and are not
property impacts.
Subpart d
This modification conforms to the intent and purpose of
the code as is the bus driveway crossings at Rainier Avenu
S are signalized for pedestrian safety and are the minimum
size to adequately provide bus egress and ingress from the
SRTC, which will support alternative modes of
transportation to the single occupancy vehicle. The
exceedance of the number of allowed driveways on Lake
Avenue S will allow for reliable access to the site from Lake
Avenue S for both buses and transit users using the transit
center parking lot. All driveways on Lake Avenue S will
have marked crosswalks to allow for safe crossing. In
addition, no driveways are proposed on S Grady Way, so
the proposed shared-use path along the Grady Way S
frontage will be unincumbered by motorized v ehicles.
Subpart e
Sound Transit can provide additional design analysis and
bus turning radii to demonstrate the necessity of this
modification. Without this modification allowing for
slightly wider driveway widths and an exceedance of
allowed driveways by half a driveway, the SRTC will not be
able to function as a transit center. Refer to Attachments
36a through c for the traffic study .