19 th
Avenue / Fashion
Island Blvd Multimodal
Improvement Project
Bethany Lopez
Senior Engineer, Public Works
September 15, 2025
1 Agenda
• Project Goals and Background
• Existing Conditions and Planned Improvements
• Traffic Analysis
• Outreach
• Funding and Schedule
• Discussion
2 Discussion Points
• Design feedback
• 19th Ave / Delaware St / SR-92 eastbound ramps
• Norfolk St / Fashion Island Blvd
• Outreach
• Funding Strategy
• Grant application resolution
3 Project Goals
• Provide congestion relief and improve traffic flows
• Improve safety and access for people walking and biking • Improve transit access and travel times
• Limit parking loss
4 Project Background for Fashion Island Blvd /
Norfolk St Intersection Improvements
• Feedback from the community about congestion
• Private developer funding committed from Pulte Homes
• Additional private developer funding agreed to by Concar Passage project
• Scope was to reconstruct intersection to provide congestion relief 5 Project Background for Bike Improvements
• Project stems from the 101/92 Mobility Hub & Smart
Corridor Plan
• 2023 – Existing conditions assessed, community identified needs and mobility gaps
• 2024 – Community reviewed and provided feedback on
preliminary design alternatives
• 2025 – Project has evolved to narrower scope - building upon feedback from prior public engagement
6 All Collisions (200 total) from 2019 - 2024*:
• 3 Pedestrian Collisions
• 3 Bicycle Collisions
Safety – Bikes
Countywide Bike High Injury Network Hotspots:
• Delaware & 19th Ave
• Fashion Island Blvd & Norfolk St
City of San Mateo Local Roadway Safety Plan
• Fashion Island Blvd & Norfolk - #5 Priority Intersection * Recent pedestrian fatality at Norfolk
Corridor Safety Data
7 Safety – Speeding
Safety – Youth
C/CAG Safe Routes to School Speed Analysis
• Fashion Island Blvd between 19th Ave &
Mariners Island Blvd sees speeds 6-10 mph
over the limit
C/CAG Countywide Youth-based High Injury Network
• Fashion Island Blvd from 19th Ave to Norfolk St
identified through US 101/SR 92 Interchange
Source: San Mateo County Safe Routes to School High Injury Network Report (June 2022) Corridor Safety Data
8 • Four all-mode crossings over US-101
within city boundaries
• One bike/pedestrian-only access over
US-101
Roadway Network
Context
9 Existing Conditions and
Planned Improvements
• Congestion
• Bicycle Network Gaps
• Pedestrian Network Gaps
• Parking Changes
• 19th Ave / Delaware St / SR-92 Ramps
Intersection
10 Corridor Congestion
11 Corridor Congestion
• Vehicle Hours of Delay: Measure of the number of hours all vehicles combined are delayed because of traffic congestion
Vehicle Hours of Delay (VHD)
Morning
Peak
(6am – 10am)
Midday
Peak
(11am – 3pm)
Afternoon
Peak
(3pm – 7pm)
Westbound 9 9 12
Eastbound 9 14 32
Source: Streetlight Data, 2023-2025
12 Destinations from
EB 19th Avenue
(3-7pm)
31%
20%
14%
8%
8%
2%
Source: Streetlight Data, 2024 13
Existing Queue Length – Eastbound at Fashion
Island / Norfolk for Afternoon Peak
Average queue length
95th Percentile queue length
Existing Queue Length –
EB at Norfolk St / Fashion Island Blvd
Afternoon Peak Hour
14 Existing Queue Length – Eastbound at Fashion
Island / Norfolk for Afternoon Peak
Average queue length
95th Percentile queue length
Queue Length with Project –
EB at Norfolk St / Fashion Island Blvd
Afternoon Peak Hour
15 Bike Master Plan
16 17
Connections to
Existing Bike Facilities
Delaware St
Grant St
Norfolk St
Mariners
Island Blvd
Proposed Bicycle Facility Changes
18 Proposed Bicycle Facilities
Lane Alignment
Delaware St
Grant St
19 Existing Sidewalk Network
20 Proposed Sidewalk Network
21 Proposed Pedestrian
Safety Improvements
22 Proposed Pedestrian
Safety Improvements
23 Existing Sidewalk Network
24 Existing Sidewalk Network
25 Existing Sidewalk Network
26 27
Parking
Spaces
Spaces
Removed
Existing 64
Proposed 43 - 21
Proposed –
Refined Design 50 - 14
Proposed
Parking Changes
Pacific Blvd to Grant St
28 Proposed
Parking Changes
East of Seal Slough Bridge
Parking
Spaces
Spaces
Removed
Existing 25
Proposed 11 - 14FASHION ISLAND
OFFICE PARK
HARBORTOWN
NEIGHBORHOOD
29 30
80 collisions
(2019 – early 2025)
47 collisions
(2019 – early 2025)
33 collisions
(2019 – early 2025)
Delaware Safe
Routes to School
Project
Existing
(seconds)
Proposed
(seconds)
AM Peak 22 45
PM Peak 34 46
Traffic Analysis
Norfolk St / Fashion Island Blvd Improvements
33 34
Timing Split – The amount of time given to a
movement
Queue Length – The length of vehicles
waiting to make their movement
Storage Pocket Length – The amount of space
given to a movement to queue in
Queue Length
Storage Length
Intersection and Signal Design Principles
Demand Volume
100%
102%
99%
Existing PM Peak
Demand Served by Direction
35 36
Existing PM Peak
Demand Served by Direction
37 Proposed Design
• Increase storage for EB from ~100
ft to ~550 ft
38 39
Proposed Design
40 0
100
200
300
400
500
600
700
800
900
1,000
Eastbound Average Volume Westbound Average Volume
Fashion Island Blvd –
Norfolk to Mariners Island
Seal Slough Bridge –
Daily Traffic Volumes
41 Proposed Design
42 Existing Queue Length – Eastbound at Fashion
Island / Norfolk for Afternoon Peak
Average queue length
95th Percentile queue length
Existing Queue Length –
EB at Norfolk St / Fashion Island Blvd
Afternoon Peak Hour
43 Existing Queue Length – Eastbound at Fashion
Island / Norfolk for Afternoon Peak
Average queue length
95th Percentile queue length
Queue Length with Project –
EB at Norfolk St / Fashion Island Blvd
Afternoon Peak Hour
44 45
Left-Turning
Vehicles
Vehicles
Going Thru
Right-Turning
Vehicles
Corridor
Simulation
Current Traffic Conditions – PM Peak
46 47
Proposed Traffic Conditions – PM Peak
Outreach
48 Outreach
• Community Workshop and Online Survey
• Workshop held on July 15th at Nueva School
• Online survey open from late June to late July
• Advertised through mailers (over 10,000)
• Social media platforms
• 23 A-frames with 46 posters along the corridor and
community areas in the corridor vicinity
• Participation
• Workshop – approximately 50 attendees
• Online Survey – over 150 responses
• Meeting with Residents
• Concerns about EB traffic congestion and eastbound right turns at Norfolk
• Two meetings held on August 25th and September 8th
49 Average Trip Length
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Very short trip -
Less than 1 mile or
under 5 minutes
(within my neighborhood)
Short trip -
About 1 to 3 miles or
5–15 minutes
(within the city limits)
Medium trip -
About 3 to 10 miles or
15–30 minutes
(just outside the city)
Long trip -
More than 10 miles or
over 30 minutes
(to another city or farther out)
Online Survey Workshop
50 Workshop Feedback
• Strong support for bike and pedestrian safety improvements, including protected lanes, better intersections, and sidewalk gap closures. • Concerns about design consistency and transitions, such as one-way vs. two-way bike lanes and complex intersection crossings.
• Frustration with congestion and traffic flow, especially at key intersections (e.g., S.
Norfolk & Fashion Island Blvd.) and freeway ramps.
• Safety and space concerns, particularly around turning vehicles near bike lanes and at gas station areas.
• Desire for clarity on project impacts, including how land use and future development will influence outcomes.
51 Continuing Stakeholder Engagement
• Early coordination with Fire and SMPD
• SamTrans
• Arco Gas Station
• Bridgepointe Shopping Center
• Target
• SVBC
• College Park PTA
• Planned Stakeholder Outreach:
• Nearby neighborhood associations
• Center for Independence of Individuals with
Disabilities
• San Mateo Youth Commission
• SAMCEDA
• Samtrans CAC
• Continuing Stakeholder Outreach:
52 • Next Community Meeting:
• November 5th at College Park Elementary School
Funding Strategy
• Lack of vehicle congestion relief funding opportunities • Complete Streets approach
• Large projects – multimodal, safety, congestion
53 Funding Strategy
$1,500,000
TA Grant Proposed,
$17,850,000
TA Grants Secured, $5,055,000
Federal Funds, $3,875,000
SamTrans, $20,000
City Funds Outside Funds
Project Funding Goal
$500,000
TA Grants Secured,
$5,055,000
Federal Funds,
$3,875,000
SamTrans, $20,000
City Funds Outside Funds
Secured Funding Distribution
54 Next Steps
55 • Work on next phase of design to incorporate comments • Continued outreach to stakeholders
• 2nd Community Meeting on November 5th
• Traffic analysis
• Incorporated feedback and design changes
• Complete design by spring 2026
Discussion Points
• Design feedback
• 19th Ave / Delaware St / SR-92 eastbound ramps
• Norfolk St / Fashion Island Blvd
• Outreach
• Funding Strategy
• Grant application resolution
56 Thank You
Bethany Lopez
Senior Engineer, Public Works
(650) 522-7313
57 74