HomeMy WebLinkAboutWS 2025-11-17 COMPLETE AGENDA PACKET°
2-Councilmembers:
Tukwila City Council Agenda
• WORK SESSION •• •
•
ILA ii;
di
90
Thomas McLeod, Mayor •:. Mohamed Abdi •:. Armen Papyan
Marty Wine, CityAdministrator •:. Dennis Martinez •:. Hannah Hedrick
Tosh Sharp, Counci I President •:. Verna Seal •:. Joe Torres Camacho
ON -SITE PRESENCE:
TUKWILA CITY HALL
COUNCIL CHAMBERS
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Monday, November 17, 2025; 5:30 PM
1. CALL TO ORDER
2. PUBLIC COMMENTS
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comment during the meeting, and you will receive further instructions.
3. PRESENTATIONS
a. 2025 Neighborhood Traffic Calming Program Update
Jen Tetatzin, Public Works Director
Pg.1
4. ADJOURNMENT
This agenda
is available at www.tukwilawa.gov, and in alternate
formats with advance notice for those with disabilities.
and available at www.tukwilawa.gov
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2025 Neighborhood Traffic
Calming Program
Council Work Session
November 17, 2025
Council Chambers
The City of opportunity, the community of choice.
N
Agenda
• Traffic Safety Related Programs
• NTCP Program Overview
• Program History and Progress
• 2025 Analysis
• 2025 Selections
• Next Steps
Prepared by:
Jen Tetatzin, PE, PMP
Public Works Director
Cyndy Knighton
Senior Program Manager - Transportation
Traffic Safety Related Initiatives
Local Road Safety
Plan
Safe Routes to
Schools
Speed Enforcement
Cameras
Neighborhood
Traffic Calming
Program
W
Neighborhood Traffic Calming Program (NTCP)
Overview
• Res. 1955 adopted by Council December 2018
• COVID funding pause 2021-2022
• Key staff departure in 2022
• Program Criteria
• Residential, local access streets
• Speeding: 15% vehicles drive 5mph over limit
• Volume: Less than 3,000 vehicles on local
streets and less than 7,000 vehicles on
collectors
• Accident data and pedestrian generators are
also considered
500
450
400
cn- 350
2 300
co
250
o 200
I— 150
100
50
0
Funding History
2019 2020 2021 2022 2023 2024 2025
Budgeted ■ Spent
Inputs to the NTCP
• Residents can enroll a street in the NTCP
by accessing a form on the ebsita
• The following information is collected:
• Contact Name
• Address
• Phone Number and Email
• Street Location
• Description of the observed problem
CITY OF
TUKWILA
re Transl :e El Conti a Dectory q perch
RESIDENTS BUSINESS VISITORS GOVERNMENT
City of Tukwila > Government Public Worxs> City Construction Project
ie:g
hn.^,GT±affic CaI nng Progzm
ENROLL A STREET IN THE NEIGHBORHOOD TRAFFIC
CALMING PROGRAM
The City or Tukwila Public Works Department pleased to present a new program for - ty members d to cNmtraffic on
residential streets, The Neighborhood Traffic Calming Program or NTCP fors eghtorF afriendly way for Public Works to
continue providing good customer service for our residents_. The NTCP was passed by the Cie; Council via Resolution 1955 cn
December 10, 2018 and funding for the program is included in the 2019-2020 biennial budget.
Traffic co-d::o.ns on residential trees greatly affect n2;hbmhood='vability.Sp_2d=ng and unnecessary through traffic on residential
c safety hneards or he generally undesirable m the penwho live in the neighborhood, The NTCP has been developed
to guide City staff and inform about the procedures for implementing traffic calming residential tr ts. The NTCP only
applies to streetsprimarily residential are which are cias f' d either a local street or a- arterial. TheNTCP does not
apply to any streets in commercial areas or to principal or minor arterials, even if they are in residential areas.
Traffic calming s defined atne application of measures whic ! be taken to reduce negative effects of motor v
oaf.9 -
HOW DO I?
1
0)
55
50
45
40
35
30
25
20
15
10
5
0
Program Trends
• 144 requests received from 2017 to 2025
• 9 distinct residential neighborhoods
LI I
• I
2017 2018 2019 2020 2021 2022 2023 2024 2025*
• Received •Addttsseh April 2025
Requests by
Neighborhood
Allentown
<1%
Tukwila Hill
22%
Thorndyke
15%
Ryan
3%
verton
1 2%
Mct-AicK
8%
Cascade
View
16%
Foster
20%
_ Foster Point
4%
Progress on Top-10 Projects from 2022
Project
Allentown Neighborhood Speed >=t Safety Study
Status
• Complete
• Planned
Recommended Action
• 42nd Ave S Raised Crosswalk at 119th
• S 124th St/50th Pl S Intersection Improvement
Implemented
• Installed
• Grant funded
Est. Cost
$185,000
$1.26 M
Tukwila Elem School Safety Improvements
Impact Charter School Safety Improvements
Cascade View Elem Safety Improvements
Studies
Complete
Restrict parking, new school speed zones with
flashing beacons, curb bulbs
20 mph School zone signage, raised crosswalk and
curb bulbs
Add new stop signs, painted crosswalks, new school
zone speed beacons, curb bulbs
PENDING
PENDING
PENDING
Level 1: $20-$50k
Level 2: $200-
$350k
Level 1: $20k
Level 2: $350k
Level 1: $10-$30k
Level 2: $250k
TCC Pedestrian Crossing Safety Improvements
Macadam Road Speed and Safety Improvements
Southcenter Blvd/65th Ave S Pedestrian Safety
Improvements
City-wide Residential Speed Limit Review
5 Ryan Way Pedestrian Safety Improvements
S 144th Street/46th Avenue S ADA Ramps
Complete
In Progress Improved signage and striping
Complete Recommendation to signalize intersection
New RRFB installations at crosswalks on S 124tf' St
at 44th and 46th Avenues S
Draft Address city-wide speed limits as part of LRSP
Compete
Concept Develop CIP project for inclusion in the LRSP for
Complete full road improvements (out of scope for NTCP)
Complete
New RRFB at existing crosswalk, curb extensions
with ADA ramps
Installed 2022
Included in 2025
Overlay Program (2026)
Under construction
2025-2026
PENDING
Grant application
submitted 2025
Fully complete in 2022
$45,000
TBD
$1,200,000
$20,000
$14,400,000
$119,000
co
Tukwila Elementary School Zone
Level 1 Improvements
• New school zone beacons/end school zone signs
• Restrict parking in front of school, 59th Avenue S
Level 2 Improvements
• Curb bulbs at 62nd Avenue S/S 149th Street
• Improve street lighting at S 149t" St/59th Avenue S
Potential Future Improvements
• School zone speed enforcement cameras
• RRFB at S 147th St/ 59th Ave S
Puget Sound
Elementa
Charter
Q
ht Beacon
1111 Raised Crosswalk wiLk Cud) Bul
pedestrian -scale Lighting
Impact Charter School Zone
Level 1 Improvements
• 20 mph school zone speed limit signs on S
146th St
Level 2 Improvements
• Raised crosswalk and curb bulbs on S 148th St
at existing crossing between school and
church with lighting
Potential Future Improvements
• School zone speed enforcement cameras
• Sidewalks on south side of S 148th St
between Military Road S and Tukwila
International Boulevard
• Sidewalks on south side of S 146th St
between Military Road S and Tukwila
International Boulevard
(D
O
Cascade View Elem
School Zone
Level 1 Improvements
• New all -way stop C 34t" Ave S/S
137t" St, new stop signs @ S 136t"
and S 137t"
• Replace/update school speed zone
beacons
• Painted crosswalk @ S 137t"/37t"
Ave S
Level 2 Improvements
• Curb bulbs at 32nd Ave S/S 135t" St
Potential Future Improvements
• Sidewalks on S 135t" St and 32nd
Ave S
2025 Analysis Process
• Bundled all requests for specific locations
• Collected current traffic volume and speed data
at 29 locations
• Reviewed existing project plans and recent
treatments
• Scored each location against criteria
• Ranked bundled requests for engineering
evaluation
• Recommended Level 1 or Level 2 treatments for
highest scoring locations where appropriate
NTCP Location-▪ %
NI-CP iocahon
12253 51.{ c 5
14221 +r'h.Ave s
9 w51st Ave.
4434 5 150th St
3. 4702 S?232h St
J 1352335th Ave
10 -_03 S taath sl
.1 14502 5-5.1h Ave a'
_. 431€ 5 130th St
13 14032 71.2 Ave s
14 1273345th Ave
3a. 15501 Cep --Ares
1. 10520 rth Ave
4720912E;h.
1S 14741350. Ave
20. 1043o a]N Ave S
_153th�t
r_ 7235 Ma an Rd 5
22 a 13325 4.5Ratn Rtl S
23 14.1556th Ave
24 13741 34th Ave s
25 15223: 'h Ave S
25 120.351h AVe
22. 1370223.4
22 :012 S 142
Recommendations
Four New Sites Recommended
1. S 144th St from 42nd Ave S to 48th
Ave S near Foster H.S.
2. 40th Ave S/42nd Ave S from E Marginal
Wy to S 140th St
3. 47th Ave S from S Ryan Wy to City
North boundary
4. S 148th St from Tukwila International
Blvd to 42nd Ave S
Site 1. S 144th St
from 42nd Ave S to 48th Ave S
Level 1 Improvements
• Striping for channelization
• Continue camera school speed
enforcement
• Estimated cost range: $20k-$50k
Level 2 Improvements
• None
42 d St
Foster
st Thom
S 34 n
0
riuktv
S 144th St
s144hSt
Site 2. 40th Ave S/42nd Ave S
from E Marginal Way to S 140th St
Level 1 Improvements
• LED chevrons and advanced warning signs
• Advisory speed around bends
• Review speed limit on corridor
• Estimated cost range: $20k-$50k
Level 2 Improvements
• Illumination study
• Curb changes at S 137th
• Estimated cost range: $50k-$250k
Site 3. 47th Ave S
from S Ryan Way to City North limits
Level 1 Improvements
• Pavement markings/channelization to
slow vehicles
• Speed limit pavement markings
• Estimated cost range: $20k-$60k
Level 2 Improvements
• Evaluate feasibility of chicanes
• Estimated cost range: $50k-$150k
S 107th St
0)
Site 4. S 148th St
from Tukwila Int Blvd to 42nd Ave S
Level 1 Improvements
• Driver feedback radar sign
• Striping for channelization and
pedestrian buffer
• Estimated cost range: $20k-$50k
Level 2 Improvement
• Evaluate feasibility of chicanes
• Estimated cost range: $50k-$150k
S 146 h St
55,
n
S 148th c
Next Steps
• Engineering design and detailed cost estimates
• Coordinate with Maintenance and Operations
• Outreach for Level 2 projects
• Policy review and update
• Annual program to collect and analyze traffic data
• Biennial cycle for selection of new projects (odd years)
• Biennial cycle for evaluation of previous treatments (even years)
CO
The City of opportunity, the community of choice.
Washington
Resolution No. 1_61
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
TUKWILA, WASHINGTON, ADOPTING THE "CITY OF TUKWILA
NEIGHBORHOOD TRAFFIC CALMING PROGRAM"
WHEREAS, one of the top concerns of Tukwila community members is speeding and other
dangers associated with motor vehicles; and
WHEREAS, the City of Tukwila desires to reduce the Inegative effects of motor vehicle use,
alter driver behavior, and improve conditions for non -motorized street users: and
WHEREAS, the adopted Tukwila Comprehensive Plan recommends implementation of a
neighborhood traffic calming program in both the Transportation Element and the Residential
Neighborhoods Element: and
WHEREAS, the City Council desires to document, a transparent, predictable and equitable
process for implementing effective traffic calming measures in neighborhoods throughout the City;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF TUKWILA, WASHINGTON,
HERE Y 'ESOLVES AS FOLLOWS:
The "City of Tukwila Neighborhood Traffic Calming Program," as evidenced in Exhibit A, is
adopted.
PASSED BY THE CITY COUNCiL 0E,THE, CITY OF TUKWILA, WASHINGTON„ at a
Special Meeting thereof this JOrt/ day of 2018,
ATTEST/AUTH ENTICATED:
7
Chi sty O'Rl erty, MMC, City
APPROVED AS TO FORM BY:
Aj
RacherS. Turpin, City Attorney
Verna 6e I, Co'Cin President
Filed with the City Clerk: J 5
Passed by the City Council:
Resolution Number,
Attachment: Exhibit A — City of Tukwila Neighborhood Traffic Calming Program
WAVVord Processing \ Neighborhood Traffic Callming Program 11-30-18,
tHbjs
Page 1 of 1
19
CITY OF TUKWILA
PUBLIC WORKS DEPARTMENT
E I GH. B 0 RHO OD TRAFF IC
CALMING PROGRAM
Adopted .December 10, 2018
By Resolution No.1955
20
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APPENDICES
APr,EN0lx k DEFINITIONS OETYPI�S OF s,rr<t-,r.,"rs
21
Itntroduction.
Traffic conditions on residential streets greatly affect neighborhood livability, Speeding and.
unnecessary through -traffic in neighborhoods create safety hazards on residential streets, The City
of Tu„kwila Public Works Department has developed a 'Neighborhood Traffic Calming Program.
(NI(.P) to guide City staff and inform residents about the procedures for implementing traffic
calming on residential streets and collector streets.
The MVP is designed, for Ioca residential streets and collector arterials only. The .NIT(.,'P does
not apply to local or arterial streets in commercial areas or to streets classified as principal or minor
arterials.
As defined by the institute of ',Transportation. Engineers (ITE), traffic calming is the application of
measures which can be taken which reduces the negative effects of motor vehicle use, alters driver
behavior and improves conditions for non -motorized street .users. The ('ity's NICE' outlines a
process for staff and residents. to carry out a traffic calming program. It provides a way to
objectively prioritize .traflic calming requests., These procedures incorporate prioritization,
planning, evaluation, implementation., and rriainten.ance of the traffic -calming devices in
residential areas. It also combines the four ,'E's Education„ Engineering„ Enforcement and.
Emergency Services,
.etives
ihe primary goal of the („'„ity's MVPis to in -Trove the livability of the local streets and residential
collectors, The City has identified the following objectives:
• Provide alternative solutions to reduce vehicular speeds and accidents on residential streets.
• Undorse safe and pleasant conditions for motorists, bicyclists, pedestrians, and residents of
neighborhood streets,
• Provide a means for a collaborative working relationship between City staff and
neighborhood residents in development of traffic calming measures.
• Discourage use of residential streets for cut -through vehicular traffic.
Process Stens
Initiating a Request
Request for .traffic calming assistance can come from a resident's association or from concerned
individuals,. Requests can. be made in writing by dearly stating the problem and location,.
accompanied with completed application which is provided by the City, The request can be made
by either mailing, or mailing the request to the Public Works Department. The request must
include a contact name, address, phone number and email.
22
Staff will then acknowledge the completed application in writing to the resident's association or
to the contact person listed in the application An application fee could be implemented in the
future to offset some of the costs involved.
Preliminary Evaluation
Each street in the community is a part of the larger roadway network that connects residents to
each other, work, schools, goods, services and the countless, destinations to which drivers and
pedestrians travel daily, Common, issues within neighborhoods include speeding, traffic volumes,
and the utilization of neighborhood streets as a cut -through route, among others. In order to ensure
that traffic calming concerns are addressed in an equitable rnanner, staff must assess the situation
by reviewing the request and Mei raining if the area qualifies for treatment using set criteria. The
primary, purpose of a preliminary evaluation is to determine whether the speeding or accident
situation is significant enough to warrant further study. At this stage, staff collects data to analyze
it to determine whether:
'The roadway is eligible for traffic cainting treatment.
o Only residential streets classified as collector arterial or local a 'ecss are eligible.
City recorded data supports the problem identified in the application.
o Speeding: 'Traffic counts are taken to determine if 15% of the motorists travel at 5
mph or more above the posted speed limit, 'Ibis is also referred to as the 85'
percentile speed being at or above 5 mph over the speed limit.
o ys)114111c,-, Traffic counts aISO collect the number of daily vehicles on a street. This
information is used to determine the best type at solution arid is used to rank project
priorities,
a Traffic Accidents: The number of accidents for over a three-year period is collected
and studied.
Ilhe Public Works 1)irector has the discretion to move an application forward or to address any
safety issues discovered outside of the Nil CP process,
If the analysis confirms that a traffic problem exists based upon the above criteria, the Public
Works Department will conduct a traffic calming study as explained in the following sections and
staff calculates the priority score for the street segment using the Priority Vliorksheet in Appendix
A written response back to the contact person with the findings of the preliminary evaluation is
generally provided within 6,0 calendar days of the request.
Solution Alternatives
l'he solution alternatives are defined into three levels.
23
No Action
After data, collection and analysis is eornpletc, any location :not meeting ate above criteria,. will be
determined. to not be eligible for any NTCP: assistance, Staff will in„ftirm the applicant in 'writing
that, their :request does not meet, the City criteria :for action and the request will be closed
Level
The first level improvement for traffic calming that should be considered are passive traffic control
treatments, known as ',Level 1,, Level I improvements are less .restrictive measures, and do not
require a vote of. the affected residents. The improvements used in Level .1 include: trimming
bushes to allow better sight distance; pavement markings and striping; increasedpolice
enforcement, traffic speed displaysigns; neighborhood, awareness campaigns; and education. This,
reduces the need 'for installing physical devices on every local street.
If a mark,ed crosswalk, is recommended 'for installation where ADA-compliant ramps do not
currently exist, the improvement will be autoniatically treated as a Level 11 solution.
Level „11
Level 11 mprovements should be considered only after Level :I treatments have been in place, for
a minimum of 6 months and data collection and analysis indicate the problem(s) has .not been
resolved, or as determined by the Public Works Director, :1.„,evel 11, :improvements focus on physical
devices such as speed cushions, traffic circles„ and chicanes to cairn traffic, These „solution
alternatives, are much costlier than Level 1 and, are generally permanent, therefore, a more detailed
evaluation is required and approval by key departments and impacted area residents is required
before the implementation. The detailed evaluation includesas follows:
•'The, speed, 'volume and accident history collected during the preliminary evaluation.
• Collect new traffic speed and voltime data and accident history for the past three
consecutive years.
• Other :factors suchas proximity to schools, parks and other pedestriangenerators, lack of
sidewalks, accessibility, presence of bicycle la.eilities, and other roadway characteristics.,
• Identify users of the affected, streets.
• Identify traffic and major pedestrian generators, such as schools, parks and shopping
centers.
• Analyze street use with respect to street classification.
• Document any other relative tlictors.
Process for Qualifying for Level 11 Treatments
If the traffic problem(s), has not resolved with 1,:evel I treatments, an inipa,ct area is established by
staff after ,identifying users of the affected street(s), identifying ,major traffic generators such as
schools and parks, analyzing the actual street use with respect to roadway classification, and any
other relative factors. The impact area includes the location requesting treatment as well as other
streets in the immediate area that could be impacted by I„.evel 1111 treatment installation.
24
Plan Development
Once an area has been selected for a traffic-cahning project„ steps need to be taken to determine
solutions. The applications are priori,tized based on the scores. The highest-ranking iipplications
willbe given priority in moving forward into Plan I,.)evelopment, as funding alio 'WS.
Since Level 1 solutions are simpler in scope, the solution forinulationprocess can .usually be
handled by staff, Public meetings are not usually required, although some type of public
coramunication is beneficial and recommen.ded,,,
11 improvements require a more compreh.ensive plan development due to the higher cost and.
impact of the actions taken. A public meeting with afl affected residents may be held, as
determined by the 1,'hiblic Works Director. The initial public meeting
• DiSCUSS the steps to, develop a traffic -calming plan.
• (lather additional information regarding traffic problems and related neighborhood. needs,.
A ballot may be provided to each resident, either in person or via the postal service, 10 vote to
indicate support of the NTCP plan. The implenientation plan must receive at least 2/3 approval of
all residents on the impacted street in order to proceed, In addition to the community support, the
approval of the Ibliowing public officials is required'
• City Police and Fire Departments
• City Council
Once the necessary level of support is documented, projects may be funded and constructed
according to their prioritization and as available staffing and budget permits.
In cases where a level II request does not receive ,sufficient support,. the project is dropped from.
the list and the next highest ranked project can go through the same process. Residents in an area.
where a project has been droppedare able to resubmit their request fbr the following program year.
Project Funding
Th,c nutTiber of tratlic-calining fj)rojects undertaken eachyear depends on the City's 'budget and.
staffing availability. 1,The City. Council's Transportation & Infrastructure Or successor) Committee
will be kept apprised on projects both proposed and selected on a regular 'basis, and the City
Council wiil be notified of the NTCP' s progress and expenditures at least every six .months.
In some cases, landscaping, maintenance and necessary easement dedication,. may be the
responsibility .of the residents or the homeowner's association, If this is the case, an agreem„ent.
must be signed between the City and residents before the project is implemented.
4
25
Project Design and Construction
Once traffic -calming treatments have been determined, the City's staff or a consultant develops
the detailed plan, based on the study and the residentsnput. 'Fhe traffic cahiting device will be
Mstalied.
In some situations, a test nistanation, may he warranted to assure that the device is both effective
and truly desired by the community. In this cae, within three to twelve months after installation,
staff evaluate,s how well the test installation performed in terms of the defined probleins.
Evaluation.
An evaluation shall he conducted between six months to one year after the implementation of any
permanent traffic cahning devices. Speed, volunie and collision data is collected and compared
with the data collected before the installation of the traffic -calming device. The data collection
should he done at approximately the same time of year as the original data collection.
Re -enrollment
If additional traffic calming treatments become necessary in the Inture due in changes in traffic
patterns unrelated to the NICP treauments, requests can be made for a new enrollment 12 months
or more after the last evaluation period has been completed. The submission will be treated as a
new request beginning with preliminary evaluation and will follow the MVP process. Any future
traffic calming treatments will be scored and ranked along with all other active requests and are
subject to funding and staffing availability.
5
26
Appendices
27
.•
Appendix A: „Definitions of types of streets
IVIIINIUNNIVIVIO,1011101011,11.1.011101,101,01,11MORYWN
The City's Transportation. El.cment of the .Comprehenstve Plan defines the street functional
classifications.. For the sake of this program, only residential local streets and collector arterials
are eligible for .NICP treatments. Streets in commercial areas or winch are classified as principal
or minor arterials are not eligible for treatments under this program. Traffic calming on principal
and tninor arterials is very different thanon residential streets„ i7equiring substantial design,
permitting„„ environmental approval, and budg.et in order to e<mstruct. These calming projects are
developed into standalone capital improvement projects.
Local streets (typical speed limit 25 mph) serve local circulation needs for motor vehicles,
bicycles, and pedestrian traffic and provide access to residences and some businesses, Local
streets are not intended to carry significant volumes of through traffic. Sixty to 80 percent of
the roadway network is considered local streets.
Collector arterials (typical speed limit 30-35 mph) are typically streets that provide access
between local service streets or frorn local streets to thorough -fares. Collectors often carry
some through traffic. Collectors in residential areas are eligible for NTCP treatments whereas
collectors in commercial areas are not Five to10 percent of the roadway network is classified
as collector arterials,
Minor arterials (typical speed limit 30-40 mph) are streets which are typically wider and
may have more lanes than collectors which connect the smaller arterial streets to destinations
or to the regional roadway network. Minor arterials carry a large percentage of through traffic
as well as traffic from the local area. Ten to 20 percent of the streets in network are minor
arterials,
1.')rincipal arterials (typical speed limit 35-50 mph) are major streets and highways that.
provide regional connections 'between major destinations, Speeds are higher, access and
traffic control favors providing fast and smooth movement on the arterial ovetthe lower.
classified. streets. Five to 1.0 percent of a roadway network is classified as principal arterials.
28
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ROADWAY CLASSIIFICATION
29
Appendix Prority Ranking Worksheet
Location:
Date:
Staff Name:
1111111111111,11
.ategoty ri a Score
Accidents:
Five points for each recorded accident over the past three years. Three
additional points will be added for each accident with a recorded injury.
Volume:
Average weekday traffic volume divided by 100, rounded up to the
nearest whole number. Maximum of 7 points possible.
Speed:
Five points for every mph greater than 5mph above the posted speed or
(85th percentile speed - posted speed limit - 5) x 5 points.
Sidewalks:
Five points if there is not a continuous sidewalk on one side of
residential streets or both sides of collectors.
Pedestrian Generators:
Five points for every K-,12 school on and 2 points for school property'
within 500ft of the subject street. Three. points for other major
pedestrian generator on the subject street. Major pedestrian generators
may include parks, community° centers, senior housing, or other uses
with significant pedestrian traffic.
Total Points:
30