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Automotive Complex Renovation, LUA14-000997, ECF, SA-H, MOD
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DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
DATE:
TO:
FROM:
SUBJECT:
See attached.
Attachment:
M E M O R A N D U M
November 5, 2014
To File, LUA14-000997, RTC Automotive Complex Renovation
Kris Sorensen, Associate Planner
Parking Analysis follow-up as part of HEX decision
TENW Memo, dated October 17, 2014, Subject: Renton Technical College
Automotive Program Renovation -Revised Traffic Analysis, TENW Project No.
3355
~TENW
Transportation Engineering Northwest
MEMORANDUM
DATE: October 1 7, 2014
TO: Bob Mahn, Transportation Systems Division
City of Renton Public Works
CC: Joan Ramsey, AIA, McGranahan Architects
Mall Lane, AIA, McGranahan Architects
FROM: Michael Read, PE, Principal, TENW
SUBJECT: Renton Technical College Automotive Program Renovation -Revised
Traffic Analysis
TENW Project No. 3355
This memorandum summarizes a troffic and parking impact analysis of lhe Ren/on Technical College /RTCI
Automotive Complex Renova/ion project, a proposed redevelopment of existing buildings on the RTC
campus in Renton, WA. This memo includes a project description, a brief description of existing
transportation conditions in the immediate site vicinity, methodology used to derive the trip generation and
parking demand estimate, and identification of any mitigation measures to offset traffic or parking impacts.
Project Description
The proposed RTC Aulomolive Complex Renova/ion project includes a combination of building renovation
and building removal/reconstruction of four separate buildings on the RTC campus that comprise the
Automotive Program. The four existing buildings [shown in Figure l). comprise approximately 58,180
square-feet in gross floor area, and serve approximately 200 existing FTE students during the peak program
period from 7:00 a.m. to 1 :30 p.m. The existing Automotive Program at RTC offers training and two-year
degrees in Autobody Repair & Refinishing, Automotive Technology, Automotive Service Technician/lTEC,
and a program tailored with the Ford Motor Company called the Ford ASSET program. As shown in
Figure l, the Automotive Program complex is located adjacent to Kirkland Avenue NE within the RTC
campus, with vehicular access to student/faculty parking off of Monroe Avenue NE on the east side of
campus.
The project proposes to renovate buildings Kl, K2, and K4 in their entirety [approximately 45,635 in
square-feet). and demolish and rebuild building K3 central within the Automotive Complex. The proposed
new K3 building would be redeveloped and expanded slightly in total floor area to provide more shop
space for existing Automotive programs. The existing K3 building was not designed for a shop building,
but would now allow for a net increase in 20 FTE students for evening classes from 5:30 p.m. to 9:30
p.m. This would also result in two additional FTE's in faculty for the evening program. The new K3
building is proposed with 17,655 square-feet and would provide a net increase in total floor area of
approximately 5,110 square-feet in shop space for the Automotive program above the existing total
complex. When complete, the total program space dedicated to the Automotive program al RTC would
total approximately 63,290 square-feet. A detailed floor plan for the Automotive Complex is shown in
Figure 2.
Transportation Planning I Design I Traffic Impact & Operations
PO Box 65254. Seattle, WA 98155 [ Office (2061 361-7333
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'9TENW
1 Analysis Traffic lmpac ovation r e Complex Ren RTC Automo IV
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October 17, 20li
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RENTON TECHNICAL COLLEGE AUTOMOTIVE COMPLEX RENOVATION McGIU.IIAHAN•.....,_
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PRE-DESIGN DIAGRAM 1'.12.11.U
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Figure 2
Project Site Plan
RTC Automotive
Renovation
Renton, WA
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Traffic Impact Analysis
RTC Automotive Complex Renovo lion
Existing parking stalls adjacent to the existing K3 building for "customers" of the Automotive program would
be reconfigured to provide a replacement of this existing parking supply. No other changes in parking or
vehicular access are proposed by the RTC. Based on the schedule anticipated by the applicant, this
project would be completed by Spring Quarter of 2017.
Existing Transportation Conditions
The RTC campus is fronted by NE 7th Street to the north, Kirkland Avenue NE to the west, Monroe Avenue
NE lo the east, and NE 4th Street to south. Raised sidewalks are provided along on campus frontages with
fixed route transit routes providing public transit connections along each roadway fronting the campus
except Kirkland Avenue NE. Vehicular site access to surface parking lots on the RTC campus are served
from Monroe Avenue NE (4 separate driveways) and NE 7th Street (one driveway). Monroe Avenue NE is
a 4-lone arterial roadway section with a posted speed of 30 mph. Raised curb, gutter, and sidewalks are
provided along both sides of the street. Existing a.m. peak hour and p.m. peak hour turning movement
counts were conducted by TENW at several of the existing RTC driveways onto Monroe Avenue NE in
2013 as part of a parking lot reconfiguration project. In addition, the adjacent signal that provides a
majority of campus access from adjacent arterials (NE 4th Street and Monroe Avenue NEJ was evaluated.
Currently, driveways operate at LOS B or better during peak hours of adjacent street traffic, while the
signalized intersection of NE 4th Street and Monroe Avenue NE operates at LOS D.
Traffic Impact Analysis
The following section documents study elements requested by the City of Renton. It includes an estimate of
vehicle trips generated by the proposed development, distribution and assignment of new project trips, site
access, safety and circulation issues, proposed parking facilities, and identification of transportation
mitigation to offset impacts.
Project Trip Generation
Trip generation rotes compiled by the Institute of Transportation Engineers (ITE) Trip Generation, 9' Edition,
2012, would normally be used to estimate a.m. peak hour, and p.m peak hour traffic that would be
generated by the proposed action. Average rate equations based on school population for the
Junior/Community College (ITE land Use Code 5401 were used to estimate trips redistributed by the
proposed renovation project and compared with those estimated using on activities-based approach.
Table l summarizes estimated trips generated by the proposed action using ITE and on an activities-based
approach. As shown, there is a wide variance in ITE rotes using either student or increased building floor
area as the basis for trip estimation. Either of these two ITE rates however, reflect typical "classroom"
student densities and trip generating characteristics (i.e., morning arrival and afternoon dismissal).
Estimating new vehicle trips based on proposed activities (number of students and their schedule) was found
to better reflect the proposed changes that would occur as a result of the Automotive Complex Renovation
project, and therefore, it is recommended these trip generation estimates ore used as the basis for
evaluation under SEPA Attachment 1 provides a detailed summary of these estimates.
~TENW October 17, 2014
Page 4
Traffic Impact Analysis
RTC Automotive Complex Renovation
As shown in Table 1, on estimated O a.m. peak hour vehicular trips, and 19 new p.m. peak hour vehicular
trips ( 19 entering and O exiting! and approximately 38 doily trips based ore estimated al full build-out of
the RTC Automotive Complex Renovation project. As most student classes hove been dismissed for the day
and those remaining trips being generated by the existing campus deport during the p.m. peak hour, the
expected "entering" traffic for the project would not generate any adverse traffic impacts given that the
existing campus circulation system and vicinity arterials accommodates a significantly higher number of
vehicle arrivals during the typical a.m. peak period.
Table 1 -RTC Automotive Complex Renovation Trip Generation Summary
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/TE Rotes -Based on Increase in FTE Students
Weekday AM Peak Hour 2 0
Weekday PM Peak Hour
Daily 13 13
/TE Rates -Based on Increase in Floor Area
Weekday AM Peak Hour 11 4
Weekday PM Peak Hour 6 6
Daily 70 70
Activities-Based Approach Using Increase in Students/Faculty
Weekday AM Peak Haur
Weekday PM Peak Hour
Dally
0
19
19
Source: Trip Generation Manual, 9·h Edition, ITE, 2012 and TENW.
City Code Parking Requirements
0
0
19
2
2
26
15
12
140
0
19
38
Per Renton Municipal Code (RMCJ 4-4-080, minimum off-street parking requirements ore based on faculty
and student capacity that would be provided by the project. As noted in the Project Description, a portion
of the proposed program redevelopment would allow for an increase in 20 FTE students and 2 additional
faculty for evening programs in the Automotive program. For Vocational School institutions in RMC 4-4-80,
I 0., e), a minimum of 1 .0 stall per employee/faculty and 0.5 stalls for every FTE student is identified. As
such, based on the evening capacity that would be provided by the project, a total of 12 off-street parking
stalls would normally be required 12 faculty stalls + l O student stalls ~ 12 total stalls). However, based on
existing campus parking already present on the RTC campus that would be readily available (as most other
campus classroom activities would be dismissed for the day), construction of these stalls would not be
required.
Parking Supply and Demand
Peak parking demand rates compiled by the Institute of Transportation Engineers (ITE) Porhng Generation,
41h Edition, 20 l 0, were reviewed to estimate the number of parked vehicles that would be generated by
the proposed RTC Automotive Complex Renovation project. Parking generation rates based on student
19TENW October 17, 2014
Page 5
Traffic Impact Analysis
RTC Automotive Complex Renova1ion
population for Junior/Community College [ITE Land Use Code 540) were used lo estimate the number
parking stalls that would be generated by the proposed by applying the highest parking generation rate of
all sites surveyed (to evaluate a worst-case scenario[. This highest observed ITE parking generation role of
0.36 stalls per student, estimates that no more than 8 parked vehicles would be generated during peak
evening periods when this program would function. Based on estimated activities however, peak parking
demand would likely be reflective of peak demand given the evening nature of the new class, or 19 new
stalls. Given the existing parking supply immediately available to the Automotive program that would be
readily available as most other campus classroom activities would be dismissed far the day, no parking
impacts are expected to occur as a result of the project.
Existing parking stalls adjacent to the existing K3 building for "customers" of the Automotive program would
be reconfigured to provide a replacement of this existing parking supply. As this supply does not provide
supply for either faculty/staff or students, no parking impacts would occur during construction.
Conclusion
A review of traffic and parking demands generated by the RTC Automotive Complex Renovo/ion project
located in Renton, WA, was conducted by TENW. No project-specific mitigation measures are needed to
off-set traffic impacts that would be generated by the proposed project based on the estimated increase in
traffic and parking demands during the p.m. peak hour and late evenings on typical weekdays. The
estimated increase in daily traffic as a result of the project is approximately 38 daily vehicle trips, with
approximately 19 new vehicle trips entering the site during the p.m. peak hour As most student classes
hove been dismissed for the day and those remaining trips being generated by the existing campus depart
during the p.m. peak hour, the expected "entering" traffic for the project would not generate any adverse
traffic impacts given that the existing campus circulation system and vicinity arterials accommodates a
significantly higher number of vehicle arrivals during the typical a.m. peak period.
Based on estimated activities, peak parking demand of the project is estimated at 19 new stalls, reflective
of evening nature of the new class available lo the Automotive progrom given increased shop space.
Given the existing parking supply immediately available to the Automotive program would be readily
available as most other campus classroom activities would be dismissed for the day, no parking impacts
are expected to occur as o result of the project. Existing parking stalls near the existing K3 building would
be reconfigured lo allow for replacement of this existing parking supply that is dedicated ta the Automotive
Program far "customer" parking only.
If you have any questions regarding the information presented in this memo, please call me at (206) 361 ·
7333 x I 01 or mikeread@tenw.com.
'9TENW October 17, 2014
Page 6
ATTACHMENTS
Traffic Impact Analysis
RTC Automotive Complex Renovation
Method Land Use
ITE Junior/Community College
or
ITE Junior/Community College
or
Activities-Based Approach Automotive Program FTE
RTC Automotive Complex Renovation
Trip Generation Comparative Methods
ITECode Measure Units/Size Daily AM
540 SF 5110 140 15
540 Students 20 26 2
540 Students (Evening class) 20 36 0
Facul 1 2 0
Total 38
Conclusion: Wide variance in ITE rates which reflect typical "classroom" student densities and trip generation rates.
AM enter AM Exit
11 4
2 0
0 0
0 0
Therefore, recommend utilization of activities-based approach which reflects actual schedule and number of trips based on studenVstaff arrivals.
Trip and Parking Generation Volumes.xis
PM PM enter PM exit
12 6 6
2
18 18 0
1 1 0
19 19