Central Avenue and White Street Corridor Traffic Study Preferred Alternative Engagement ResultsCity of Dubuque
City Council
ACTION ITEMS # 1.
Copyrighted
November 18, 2024
ITEM TITLE: Central Avenue and White Street Corridor Traffic Study
Preferred Alternative Engagement Results
SUMMARY: City Manager recommending City Council approval on the
preferred alternative for the Central Avenue and White Street
Corridor Traffic Study as developed by Bolton & Menk.
SUGGUESTED Receive and File; Approve; Presentation
DISPOSITION:
ATTACHMENTS:
1. MVM Memo
2. Central and White Traffic Study Phase 3 - Pref Alt Engagement - Staff MEMO
3. Bolton Menk Memorandum —Central White Pref Alt Engagement Results _11-18-24
4. Central and White Traffic Study Phase 3 - Public Engagement Summary Report
5. Central and White Traffic Study Phase 3 - Pref Alt Engagement - Council
Presentation 11-18-24
6. Lane Widths with Curb Offset —Central & White_Uploaded 11.18.24
Page 1302 of 1454
THE CITY OF
DUBE
Masterpiece on the Mississippi
TO: The Honorable Mayor and City Council Members
FROM: Michael C. Van Milligen, City Manager
SUBJECT: Central Avenue and White Street Corridor Traffic Study
Preferred Alternative Engagement Results
DATE: November 14, 2024
Dubuque
AI WIN av
2007-2012.2013
2017*2019
City Engineer Gus Psihoyos is recommending City Council approval on the preferred
alternative for the Central Avenue and White Street Corridor Traffic Study as developed
by Bolton & Menk.
While it was not unanimous, based on the cumulative citizen and stakeholder feedback,
the first alternative, Multi -Modal Focused Alternative, is the preferred alternative of each
group that was engaged. Bolton & Menk's memorandum outlines the engagement,
planning and considerations that have been completed to summarize the previous plans
by the City for Central Avenue and White Street, while also providing the priorities that
this alternative meets.
I concur with the recommendation and respectfully request Mayor and City Council
approval.
Mic ael C. Van Milligen
►VA[yTl►TA EVA
Attachment
cc: Crenna Brumwell, City Attorney
Cori Burbach, Assistant City Manager
Gus Psihoyos, City Engineer
Justine Hull, Traffic Engineer
Robert Schiesl, Assistant City Engineer
Duane Richter, Traffic Engineer
Jill Connors, Economic Development Director
Anderson Sainci, Director Office of Shared Prosperity and Neighborhood Development
Jason Duba, Assistant Planner
Russ Stecklein, Transportation Services Operations Supervisor
Arielle Swift, Public Works Director
Kristin Hill, Communication Specialist
Page 1303 of 1454
THE C
DUUB-.'*--FEI
Masterpiece on the Mississippi
TO: Michael C. Van Milligen, City Manager
FROM: Gus Psihoyos, City Engineer
DATE: November 13, 2024
SUBJECT: Central Avenue and White Street Corridor Traffic Study
Preferred Alternative Engagement Results
INTRODUCTION
Dubuque
AII•America city
I I'
2007-2012.2013
2017*2019
The purpose of this memorandum is to provide information and to get support and
confirmation from the Mayor and City Council on the preferred alternative for the Central
Avenue and White Street Corridor Traffic Study as developed by Bolton & Menk.
BACKGROUND
Central Avenue and White Street Corridor Traffic Study began in April 2024 with these
two corridors spanning from 4th Street to 22nd Street and a holistic approach to review
the corridors and engage each different area along Central Avenue and White Street to
evaluate desired outcomes and feasibility. A robust public outreach and corridor
engagement with the residents, stakeholders, and the private sector (business, trucks)
was established with Bolton & Menk to provide potential solutions and alternatives.
Bolton & Menk has provided an engagement summary on the results from the open
house, survey results and stakeholder responses based on the four alternative cross
sections presented to City Council at the September 30th work session.
Based on the cumulative citizen and stakeholder feedback, the first alternative, Multi -
Modal Focused Alternative, is the preferred alternative of each group we have engaged.
Bolton & Menk's memorandum outlines the engagement, planning and considerations
that have been completed to summarize the previous plans by the City for Central
Avenue and White Street, while also providing the priorities that this alternative meets.
See the attached memorandum from Bolton & Menk for more information.
ACTION TO BE TAKEN
I recommend that the Council provide support and concur with the preferred first
alternative, Multi -Modal Focused Alternative, or provide direction with another
recommended alternative. Based on the preferred alternative selected, staff and the
Bolton & Menk team will finalize the traffic study report based on the selected
alternative. The final report will provide implementation and phasing plan, planning level
Page 1304 of 1454
cost projections, along with a project video for that alternative on the corridor as a
preliminary design plan.
Prepared by Justine Hull, Traffic Engineer
cc: Robert Schiesl, Assistant City Engineer
Duane Richter, Traffic Engineer
Jill Connors, Economic Development Director
Anderson Sainci, Office of Shared Prosperity and Neighborhood Development
Jason Duba, Assistant Planner
Russ Stecklein, Transit
Arielle Swift, Public Works Director
Kristin Hill, Communication Specialist
2
Page 1305 of 1454
MB O LTO N RS
& MENK
Zest5._
Real People. Real Solutions.
November 12, 2024
RE: Central and White Corridor Study Preferred Alternative Engagement Results
City of Dubuque, IA
Project No.: OT4133000
Introduction
401 1st Street SE
Suite 201
Cedar Rapids, IA 52401
Phone: (319) 362-3219
Bolton-Menk.com
The memorandum summarizes the results of the community engagement regarding the preferred
alternative cross section for Central Avenue and White Street Corridor. The Central and White Corridor
Study focuses on determining the best approach to accomplish the study vision:
"Central Avenue and White Streets will become a valued and vibrant place in Downtown Dubuque — a
place for businesses to thrive, people to live, and for the unique identity of the City to shine."
The corridor study has been engaging the public, city staff, and various project stakeholders since April
2024. This latest engagement effort for Phase 3 of the study took place from August to October 2024
and included the following:
• Project Advisory Team Meeting
• Project Management Team Meeting
• Combined meeting with the small business, freight business, and resident focus groups
• Public open house
• Public Survey
Engagement Results
A summary of the public engagement is attached. All four alternative cross sections were presented to
these various groups along with the Evaluation Matrix, which discussed the pros and cons of each
alternative. Questions were answered and feedback was received regarding which alternative was
preferred to move forward for the Central Avenue and White Street Corridor. Ideas like automated
speed enforcement on the corridor in addition to roadway design changes were received.
From these conversations, the Multi -Modal Focused Alternative rose to the top as the preferred
alternative with each group engaged. Figure 1 presents the cross sections and elements provided in the
Multi -Modal Focused Alternative. Table 1 summarizes the overall study results in the areas different
Study Guiding Principle areas of Safety, Equity, Connectivity, and Economic Development. Table 2 shows
the ways that the Multi -Modal Focused Alternative addresses the most important priorities for the
stakeholders, focus groups, and public engaged through this phase.
As shown in these exhibits, the Multi -Modal Focused Alternative is the preferred option for the public
and stakeholders and it also provides the most areas of improvement for Safety, Equity, Connectivity,
and Economic Development. The Multi -Modal Focused Alternative was developed based upon the
results of Survey 2 where respondents desired one-way streets and corridor residents respondents
stated that they preferred a wide sidewalk on Central Avenue and a bike facility on White Street. The
Bolton & Menk is an equal opportunity employer.
Page 1306 of 1454
Multi -Modal Focused Alternative also applies recommendations of several past planning efforts that
included this corridor such as the Central Avenue Corridor Master Plan where the public expressed a
desire for pedestrian friendly streets. The Dubuque Regional Bike/Ped Plan where on -road bike
connections were identified through downtown to connect to existing and planned trails. Imagine
Dubuque which outlined several recommendations for improving transportation and mobility in
downtown such as Implementing complete streets for all modes of travel, including pedestrians, cyclists,
and public transit. Move DBQ which recommended on reducing lane widths, widening sidewalks, adding
bike facilities, and improving walkability downtown. These recommendations aim to create a more
accessible, efficient, and sustainable transportation network in downtown Dubuque.
Alternative 1 Multi -Modal Focused
Yr tilt' TWW 7�IW y�r wro.lq
nn •n U L !! rUn
• Central and White one-way, two lanes
• Parking removed on one side of Central and one side of White
• Wide sidewalk, outdoor dining, and landscaping on Central
Figure 1
Safety
Equity
Connectivity
Economic
Development
Alternative
Evaluation
Through Travel
Times
Preference
Matrix
Conflict
Predictive
Pedestrians
Bicycles
Transit
(min)
Heavy
Vehicles/
On street
Landscape
Sidewalk
from
Points
Crashes/year
EMS
Parking
Community
Central
white
facility
Prefer two
limited
Both Central &
Status
on
Status
lanes to
parking
trees.
Do Nothing
white Remain One
531
94
4
5
Status quo
way
quo
parallel
quo
allow
both sides
Most on
street
passing
white now
Prefer two
6' Grass
Multi -Modal
Both one-way
Wider
Facility
Enhanced
lanes to
50%loss
Blvd,
12'
Cycle Track on
523
94
Present
4
5
sidewalk,
1
Focus
White
sidewalks
bus stop
allow
in parking
additional
on White
passing
tree wells
16' dining
facility
Only one
Getting to and
Both Two -Way
on
stops on
lane for
40%loss
Additonal
12'
Sticking
Parking on Both
976
40
bumpouts
both sides
5
5
2
Around
Sides
parallel
of street
travel each
in parking
tree wells
sidewalk
street
I
direction
Regular
wider
facility
large
Remain One-way
sidewalks
on
Room for
Transition
10% loss
landscape
SW 22nd
Sow and Flow
one Lane: 9th to
503
94
enhanced
13
25
down to 1
to 13th,
3
4th
&
parallel
in parking
area 9th
stops
lane at 9th
12' SW 9th
bumpouts
street
to 4th
to 4th
Asymmetry:
Two -Way: 22nd to
facility
Transition
different
13th;
on
Status
at 13th,
No loss in
Additonal
12'
757
61
bumpouts
5
5
4
roads,
One -Way: 13th to
parallel
quo
more turns
parking
tree wells
sidewalk
different roles
4th
street
needed
LEGEND Negative Neutral
Effect Effect
Positive
Effect
Table 1
Bolton & Menk is an equal opportunity employer.
Page 1307 of 1454
Improve Safety for Ped Crossings
VAdd Landscaping/Trees
One Way Streets
Maximize Parking
Wider Sidewalks
Reduce Speeds
Dampen Noise
Safer Cycling Options
Two -Way Streets
Enhances pedestrian crossings at
intersections with bump -outs for
increased safety. Limits intersections
to two travel lanes, reducing crossing
complexity for pedestrians compared
to two-way streets with turn lanes.
Expands opportunities for landscaping
and trees along both streets.
Retains One -Way Streets. Provides
two lanes for passing and maintains
good signal progression for EMS,
police, and freight.
Reduces on -street parking on one side
of Central and White. Allows for
loading zones on -street and seeks
additional parking on the side streets
to support local business/residents.
Allows for wider sidewalks for outdoor
dining, additional landscaping, and
pedestrian space to support local
businesses.
Includes narrowed lanes, landscaping,
and intersection bump -outs to reduce
speeds, addressing resident concerns.
Includes landscaping/trees to slow
speeds and dampen noise.
Establishes a dedicated cycle track on
White Street, meeting residents'
desires for safer cycling options.
Retaining two one-way streets
provides a consistent street layout,
eliminating the need for transitions
between one-way and two-way
streets.
Table 2
Bolton & Menk is an equal opportunity
Page 1308 of 1454
PHASE 3: LET'S UNITE!
AUGUST - OCTOBER, 2024
The third public engagement phase built upon the interaction and
feedback collected in Phase 2. The project team presented four
potential alternatives for corridor improvements to the public and
collected feedback via in -person events and an online survey.
BY THE NUMBERS
1 business, freight and resident
focus group meeting
1 open house
6 interactions with posts on
Facebook
327 survey responses between
October 18 - November 1
THE CITY OF
DUB E
Masterpiece on the Mississippi
LET'S 00c'
UNITE!
0
CENTRAL &WHITE
BUSINESS, FREIGHT, & RESIDENT FOCUS GROUP
ftN
October 1 1 4:30 - 6pm O Greater Dubuque tl� 60 people invited to
participate
GOAL
To present the four alternatives shared with the Council to the combined business owner, freight, and
resident focus group members, in order to gather their thoughts and insights on a preferred alter-
native. Although it was one large combined meeting, we made sure to engage with all three groups
equitably.
WHAT WE HEARD
Key Considerations
• Transition at 13th Street (North End): Concerns were raised regarding the transition at 13th Street in
Alternative 4.
• Alternative 3 and Train Blockages: Questions were raised about how Alternative 3, which proposes
a single lane south of 9th Street, would function when train blockages occur east of the corridor.
• Amenities vs. Parking: Many attendees expressed a preference for more space for amenities,
though there were concerns about the potential loss of parking.
• Bike Facilities Connectivity: It was suggested that bike facilities could be located on White Street or
another parallel downtown street, as long as there is sufficient connectivity.
• Truck Route Request: A request was made for the city to explore establishing a truck route to
restrict truck traffic to specific streets.
• Freight Members' Input on 14th Street Bridge: Freight members indicated that the 14th Street Bridge
could work if the intersection at E 16th Street and Sycamore Street is designed to accommodate
trucks effectively, and the curve on Sycamore Street is adjusted to improve truck maneuverability.
Page 1310 of 1454
RESULTS
Attendees were asked to select their preferred alternative, the results were as follows in
order of preference:
1 Alternative 1: Multi -Modal One -Way
Alternative 2: Getting Two and Sticking Around 2
Two -Ways
3 Alternative 4: Different Roads, Different Roles with Two -Way and
One -Way
4 Alternative 3- Slow and Flow
When asked if a bike facility on the corridor was important or if it could be on a parallel street, the
responses were as follows:
Important, but
ok on another 07' 12 Not important
street
1 � � Important on
White
Page 1311 of 1454
OCTOBER 17 1 4:30 - 6pm O Prescott Elementary 0 0 0 43 attendees
1151 White Street
GOAL
To invite the community to explore all four alternatives, understand what each option includes, and
review an Evaluation Matrix that highlights the pros and cons. Attendees were asked to vote for their
preferred alternative by placing a sticker on their choice.
WHAT WE HEARD
Key Considerations
Traffic Flow and Street Configuration: Concerns were raised about the traffic flow on Central
and White Streets, with many attendees expressing a preference for one-way streets to improve
traffic flow, particularly for turning and maneuvering. There were also concerns about congestion
on areas with existing two-way traffic, such as upper Central and 22nd, making navigation more
difficult. Additionally, attendees expressed concerns about the ongoing use of Central and White by
trucks and freight, which could conflict with efforts to improve pedestrian accessibility.
• Plaza at 18th & Central: There were concerns regarding the proposed plaza at 18th & Central.
Some attendees questioned the practicality of the plaza, citing low turnout at similar spaces like
the one near the town clock. There were also worries that the plaza would hinder access to nearby
businesses, particularly the Key City Creative Center (KCCC).
• Greenery, Landscaping, and Trees: Many attendees expressed a desire for increased landscaping,
greenery, and trees as part of the project. They emphasized the importance of creating a visually
appealing and sustainable environment that would enhance the overall aesthetic and livability of
the area.
• Need for Data and Cost Estimates: Questions were raised about the cost estimates for the
proposed changes. Attendees requested more clarity on the number of residents and businesses
in the affected areas (e.g., White, Central, Millwork District) as well as detailed cost estimates for the
proposals to ensure that decisions are based on accurate and transparent information.
Based on feedback from attendees, the preferences ranked from highest to lowest were as follows:
1 2 3
Alternative 1: [and
ative 2: Alternative 3:
Multi -Modal ng Two Slow and Flow
One -Way tickingundWays
�7
Alternative 4:
Different Roads,
Different Roles
Page 1312 of 1454
• October 18 - November 1 I ❑ p 327 Total Submissions
GOAL
Collect public input to help determine community priorities for improvements to the Central and
White corridor between 4th Street and 22nd Street. The survey was promoted on social media, the
project webpage, and at in -person events.
CONCEPT PREFERENCE
Four potential alternatives were presented and respondents were asked to identify their top
preference. The project team also inquired about the importance of cycle tracks and what the top
three priorities should be for the corridor design.
Alternative 1 Multi -Modal Focused
• Central and White one-way, two lanes
• Parking removed on one side of Central and one side of White
• Wide sidewalk, outdoor dining, and landscaping on Central
Alternative 2 Getting To and Sticking Around
• Central and White are changed to two-way
• Parking is maximized and present on both sides of the roadway
• Left turn lanes are needed at all signalized intersections
• A two-way left turn lane is needed from 8th to 12th, removes parking on one side
Page 1313 of 1454
Alternative 3 Slow and Flow
WHITE
South of 9th St.
/I / `_
i V" VENIVv
• Central and White remain one-way pairs with two lanes in each direction from 22nd to 9th
• Parking on both sides from 22nd to 9th
• Travel lanes change to one from 9th to 4th
• Parking is removed on one side from 9th to 4th
Alternative 4 Different Roads, Different Roles
;ENTRAI
rcth of 13th 1
81d1YlIN R� irUrlw flMrlr R� 81i1Mdt
1!R RR RR RR IR 12R
P
$IdEWlM Parking - Travel Lane Travel Lane j ParXinq Sldewelh
12R 9n Il tt lit 9n 12 f1
• Central and White are one-way pairs with two lanes in each direction from 4th to 13th
• At 13th, Central and White change to two-way streets
• Parking remains on both sides of the street
Page 1314 of 1454
Which alternative do you prefer?
M Alternative 1 M Alternative 2 0 Alternative 2 Alternative 4
A cycle track can be implemented on White Street in all four alternatives. How
important is it to have a cycle track on White Street?
Important ■ Important, but a bike facility on another downtown ■ Not important
street is acceptable
Page 1315 of 1454
Please select your top 3 priorities.
Add landscaping and
street trees
Improve safety for
pedestrian crossings
One-way
Maximize parking
Wider sidewalks 25%
Reduce speeds 25%
Dampen noise 24%
Safer cycling options 22%
Two-way
16%
30%
36%
62%
60%
DEMOGRAPHIC RESPONSE RATIOS
ISO co liD
Residents Business / Property Neither
Owners
*Some respondees identified as both a resident and a business / property owner.
Which alternative do you prefer?
65% 65%
56%
20% 20%
16% � =
0
11% 1 % 10%
Alternative 1 Alternative 2 Alternative 2
■ Resident ■ Business / Property Owner
12%
8%
4%
Alternative 4
■ Neither
Page 1316 of 1454
A cycle track can be implemented on White Street in all four alternatives. How
important is it to have a cycle track on White Street?
40%
41% 41% 43%
38%
28%
32%
17% 19%
Resident Business / Property Owner Neither
E Important
Important, but a bike facility on another downtown street is acceptable
Not important
Please select your top 3 priorities.
Resident
Business / Property Owner
Neither
Reduce Speeds
27%
39%
23%
Dampen Noise
20%
34%
25%
Add Landscaping
and street trees
6�%
63%
64%
Improve safety for
pedestrian crossings
65°�
°
63%
58%
Safer cycling
options
25%
24%
21%
Maximize on-
street parking
31%
27%
29%
Wider
sidewalks
18%
2%
30%
One-way
34%
29%
37%
Two-way
19%
17%
14%
Page 1317 of 1454
GENERAL FEEDBACK
• Green Space - Many comments emphasize the importance of trees, landscaping, and green
spaces. Comments identified it as a way to beautify the area, and want the team to pay attention
to where they locate the trees so as to not obstruct any views or pedestrian traffic.
• Parking - There is significant concern about the loss of parking. Removing parking spaces is seen
as detrimental to local businesses that rely on parking for customers and deliveries. The removal
of parking is also seen as a problem for those with mobility impairments, especially if parking
is moved farther from entrances. There are also concerns about the need for more designated
handicapped parking.
• Pedestrians/cyclists - Improve pedestrians and cyclists safety with many expressing the need
for protected bike lanes, wider sidewalks, and better walkability, especially in areas with high
foot traffic. There are mixed opinions on whether the streets should be optimized for vehicles or
pedestrians. Some advocate for making the streets more pedestrian -friendly by reducing vehicle
speed and providing more biking and walking options. Others would prefer the streets would be
optimized for cars and expressed concern reduced/congested traffic flow and less parking would
negatively impact local businesses.
• Traffic - Many comments express concerns about how changes will impact traffic flow, especially
for semis and larger vehicles. Some worry that reducing lanes or making streets narrower could
lead to congestion, accidents, and confusion. Several people suggested finding ways to divert
freight traffic away from Central and White Streets in order to help reduce congestion and improve
safety.
• Economic Development - The impact of changes on businesses is a major concern, particularly
regarding the loss of parking and how it might affect customers. There is also concern about the
gentrification of the downtown area, with a focus on how redevelopment might impact existing
lower -income communities. There were suggestions for more outdoor dining, bike lanes, and other
amenities to increase foot traffic and business opportunities. However, the economic success of
these initiatives is seen as dependent on the area becoming a more appealing place for both
businesses and visitors.
Safety - Pedestrian safety is a key concern, with calls for wider sidewalks, better crosswalks and
pedestrian lighting. Some suggest adding pedestrian -friendly amenities such as benches and
more crosswalk signals to improve accessibility for disabled individuals.
Pedestrian Amenities - Some expressed doubt that outdoor dining or pedestrian -focused
amenities will be practical given the area's statistics. However many respondents support wider
sidewalks, outdoor spaces, and amenities that make walking and cycling more pleasant and safe.
The concept of adding trees, benches, and public spaces to encourage people to spend time
outdoors is widely supported.
Design - Several comments cautioned against overcomplicating the design with too many
changes, such as narrowing streets or adding bike lanes where they are not practical. The potential
impact on snow removal, particularly with bike lanes and bump -outs, is also raised. There is
a preference for designs that prioritize safety and efficiency. Others advocate for designs that
improve traffic flow while also accommodating pedestrians, cyclists, and businesses.
Page 1318 of 1454
� CENTRAL AVENUE AND
WHITE STREET CORRIDOR
TRAFFIC STUDY
Council Meeting
November 18, 2024
Project Location
One -Way Portion,
36 study intersections,
44 hlnrkq
k
J
Page 1320 of 1454
9
April - May
DISCOVER
Study Kick -Off
Data Collection
Existing Conditions
Public Events &
Interactive Comment
Map
9
June - July
ANALYZE
Analyze Data &
Public Feedback
Concept Design
Public Events &
Community Survey
November - January
SHARE
Share Final
Recommendations
Implementation Plan
Public Hearing
Public Engagement
Report
Stakeholder Input
BY THE NUMBERS
1 business, freight and resident
focus group meeting
1 open house
6 C interactions with posts on
J Facebook
327
survey responses between
October 18 - November 1
O
CENTRAL & WHITE
rwl
i
Corridor
Study
r
Bolton-Menk.com T
Page 1322 of 1454
Four Alternatives Discussed:
1) Multi -Modal focused (One-way)
0- r M .:r � Y�
2) Getting To and Sticking Around (Two-way)
CENTRAI
F3
`r N , e M 6 M ~+
Bolton-Menk.com S
Page 1323 of 1454
Four Alternatives Discussed:
3) Slow and Flow (One-way)
4) Different Roads, Different Roles (Combination)
Bolton-Menk.com S
Page 1324 of 1454
u rvey
Overview FL E T
• Total responses — 327
• Resident — 66
• Business / property U141TEO
owner —19
• Neither — 220 &9A AS,
CENTRAL & WHITE
0
CENTRAL & WHITE
Page 1325 of 1454
Which
alternative
do you
prefer?
0
■ Alternative 1 ■ Alternative 2 ■ Alternative 3 Alternative 4 CENTRAL & WHITE
Bolton-Menk.col„ 0
Page 1326 of 1454
A cycle track can be implemented on White Street in all four
alternatives. How important is it to have a cycle track on White Street?
■ Important • Important, but a bike facility on another downtown street is acceptable ■ Not important
Bolton-Menk.coii. 0
Page 1327 of 1454
Please select your top 3 priorities:
Add landscaping and street trees
Improve safety for pedestrian crossings
'
One-way
'
Maximize on -street parking
'
Wider sidewalks
'
Reduce speeds
'
Dampen noise
'
Safer cycling options
'
Two-way
,
0%
300,:,
25%
25%
244'0
22%
- 15%
100/0 20% 305:
36%
62%
60%
40 . 50% 60% 70%
711 Q 1 A� �c�u�
Page 1328 of 1454
NE
Page 1329 of 1454
Which alternative do you prefer?
70%
68%
65%
60%
58%
50%
40%
30%
20%
10%
0%
Alternative 1
M
21% 20%
15% 16%
12%
ON 10%
Alternative 2 Alternative 3
■ Resident ■ Business / Property Owner Neither
5% 5% 4%
Alternative 4
CENTRAL & WHITE
Page 1330 of 1454
A cycle track can be implemented on White Street in all four alternatives.
How important is it to have a cycle track on White Street?
24%
10%
0%
Resident
■ Important
Business / Property Owner
■ Important, but bike facility on another downtown street is acceptable
19%
■ Not important
43%
Neither
38%
Page 1331 of 1454
Please select your top 3 priorities:
50%
40%
30%
20%
10%
0%
64% 65%
58%58% 163%
. 58%
37% 36% 37%
35%
29%
30% 32%
24% 25
23 23%
21% 21%
20%
18
16°D
149Po
11 °Po
0%
Reduce speeds Dampen noise Add landscaping and Improve safety for Safer cycling options Maximize on -street Wider sidewalks One-way
street trees pedestrian crossings parking
■ Resident ■ Business / Property Owner Neither
4J o
CENTRAL & WHITE
Page 1332 of 1454
Alternative 1
Multi -Modal Focused
fK51t
• Central and White one-way, two lanes
• Parking removed on one side of Central and one side of White
• Wide sidewalk, outdoor dining, and landscaping on Central
• Two-way cycle track on White
t
N
Bolton-Menk.com S
Page 1333 of 1454
Evaluation Matrix
Safety
Equity
Connectiuity
Economic
Deuelopment
Alternatiue
Evaluation
Times
Heavy
Through Travel
Preference
Conflict
Predictive
Pedestrians
Bicycles
Transit
(min)
Vehicles/
On Street
Landscape
Sidewalk
from
atrix
Points
Crashes/year
EMS
Parking
Community
Central
White
facility
Prefer two
limited
Both Central &
Status
on
Status
lanes to
parking
trees.
Do Nothing White Remain One
531
94
4
5
Status quo
-
Way
quo
parallel
quo
allow
both sides
Most on
street
passing
white now
Pretw
o wo
6' Grass
Multi -Modal
Both One -Way
Wider
Facility
Enhanced
lanes to
o
50% loss
Blvd,
12'
Cycle Track on
523
94
Present
4
5
sidewalk,
1
Focus
White
sidewalks
bus stop
allow
in parking
additional
on White
16' dining
passing
tree wells
facility
Only one
Getting to and
Both Two -Way
on
stops on
lane for
o
40/ loss
Additonal
12'
Sticking
Parking on Both
976
40
bumpouts
both sides
5
5
2
Around
sides
parallel
of street
travel each
in parking
tree wells
sidewalk
street
direction
Regular
wider
facility
large
Remain One -Way
sidewalks
on
Room for
Transition
o
10/ loss
landscape
SW 22nd
slowand Flow
One Lane:9th to
503
94
enhanced
13
25
down to 1
to 13th,
3
4th
&
parallel
in parking
area 9th
stops
lane at 9th
12' SW 9th
bumpouts
street
to 4th
to 4th
Asymmetry:
Two -Way: 22nd to
facility
Transition
different
13th;
on
Status
at 13th,
No loss in
Additonal
12'
757
61
bumpouts
5
5
4
roads,
One -Way: 13th to
parallel
quo
more turns
parking
tree wells
sidewalk
different roles
4th
street
I
I I
I
I needed
LEGEND Negative Neutral Positive
Effect Effect Effect
CENTRAL & WHITE
Page 1334 of 1454
Parking Utilization
• 503 spaces existing on Central
and White Streets Today
• Highest Parking Peak is
Weekday Evening with a
utilization of 24%
• When spaces are removed
with the Multi -Modal
Alternative, the utilization
increases to 52% overall
• This is still less than the 80%
standard when on -street
parking is considered full
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Weekday PM UtAzation
S 25%
25% - 60%
-6W.-80%
> 80%
No Parking Spaces
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Page 1335 of 1454
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Page 1336 of 1454
Improve Safety for
Ped Crossings
Landscaping/Trees
One Way Streets
Enhances pedestrian crossings with bump -outs
Limits intersections to two travel lanes, reducing crossing complexity
Expands opportunities for landscaping and trees along both streets.
Retains One -Way Streets. Provides two lanes for passing and maintains
good signal progression for EMS, police, and freight.
Maximize Parking Reduces on -street parking on one side of Central and White.
Allows for loading zones on -street
Seeks additional on -street parking on the side streets
Wider Sidewalks Allows for wider sidewalks for outdoor dining, additional landscaping,
and pedestrian space to support local businesses.
Reduce Speeds
Dampen Noise
Safer Cycling
Options
Includes narrowed lanes, landscaping, and intersection bump -outs to
reduce speeds, addressing resident concerns.
Includes landscaping/trees to slow speeds and dampen noise.
Establishes a dedicated cycle track on White Street, meeting residents'
desires for safer cycling options.
Bolton-Menk.com T
Page 1337 of 1454
Central Avenue
Public Expressed a Desire for Pedestrian Friendly
Corridor Master
Streets
Plan
Dubuque Regional
On -road bike connections were identified through
Bike/Ped Plan
downtown to connect to existing and planned
trails.
Imagine Dubuque
Implement complete streets designed for all
modes of travel, including pedestrians, cyclists,
and public transit.
Move DBQ
provides recommendations on reducing lane
widths, widening sidewalks, adding bike facilities,
and improving walkability downtown
Central Ave
The revitalization of Central Avenue has been
Revitalization
identified as a high priority by Council for the
years 2023-2025. The consideration of traffic
along White Street is included to generate a
cohesive understanding and solution for the
transformation of Central Avenue.
Bolton-Menkxom T
Page 1338 of 1454
Next Steps
• Refine Preliminary Layout for Preferred Alternative
• Develop Cost Estimates &Phasing Plan
• Finalize Report and Project Video for Preferred Alternative
• Public Hearing —January 2025
O .
CENTRAL & WHITE
LET'S �
DO THIS!
CENTRAL & WHITE
Bolton-Menk.m.. ,°10
Page 1339 of 1454
�I
Page 1340 of 1454
In addition to the 11-foot travel lane, a curb offset of 2-feet is also included for the lane not adjacent to the parking
lane. Per SUDAS, the Iowa Statewide Urban Design and Specifications, the curb offset is measured from the back
of curb to the edge of the lane. The curb offset increases driver comfort and roadway safety. Curb offset is not
required for roadways with a posted speed of 35 mph or less or where on street parking is present, however, to be
more accommodating of the larger vehicles travelling on Central and White, a curb offset is included in the Multi -
Modal Alternative cross section. This is an additional distance outside of the travel lane width. The left most lane
on both streets would be 12.5-feet from the lane line to the face of curb, see graphics below.
Page 1341 of 1454