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Central Avenue and White Street Corridor Traffic StudyCity of Dubuque Special Meeting Copyrighted September 30, 2024 Work Session - Bottom # 01. ITEM TITLE: Central Avenue and White Street Corridor Traffic Study SUMMARY: Bolton and Menk will present on the progress of the Central Avenue and White Street Corridor Traffic Study. SUGGESTED DISPOSITION: ATTACHMENTS: Description Type MVM Memo City Manager Memo Staff Memo Staff Memo Handout Supporting Documentation Presentation Supporting Documentation 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 Work Session DATE: September 26, 2024 Dubuque All-beria city 2007.2012.2013 2017*2019 City Engineer Gus Psihoyos is providing an update at the September 30, 2024, 6:30 p.m. Work Session on the progress of the Central Avenue and White Street Corridor Traffic Study along with city staff and the consultant Bolton and Menk. w+t Mic ael C. Van Milligen MCVM:sv Attachment cc: Crenna Brumwell, City Attorney Cori Burbach, Assistant City Manager Gus Psihoyos, City Engineer Masterpiece on the Mississippi TO: Michael C. Van Milligen, City Manager FROM: Gus Psihoyos, City Engineer SUBJECT: Central Avenue and White Street Corridor Traffic Study Work Session DATE: September 25, 2024 Dubuque !sue All•Aaeriea Gip NANI AL1_nk_:11.411 ' 1111: 2007*2012*2013 2017*2019 INTRODUCTION The purpose of this work session is to advise the City Council on the progress of the Central Avenue and White Street Corridor Traffic Study. DISCUSSION Bolton and Menk were hired by the City of Dubuque to study the one-way corridor that is Central Avenue and White Street to have a plan to reinvent the corridor. This work session will be presenting what alternatives were created from the collection of public input of proposed design elements being considered for the Central Avenue and White Street corridor. RECOMMENDATION A PowerPoint presentation will be given by Bolton and Menk. No formal action is required per this memorandum. MULTI MODAL FOCUSED GETTING TO AND STICKING Central LEGEND SLOW AND FLOW DIFFERENT ROADS_ DIFFERENT AROUND ROLES SIDEWALK LANDSCAPING CYCLE TRACK White Central White Central White Central White PARKING 22nd 22nd li it 22nd 22nd u Alt A T1' li 13th 12th 13th 13th it lai !bi 11 IT 11 11 9th 8th 9th 91h li 4th 4th it 1 It ii 4th 4th MIXED USE z O 0 0 MULTI MODAL FOCUSED Central White 22nd 13th - le 9th ■ Parking Ravel Lane j Travel Lens OIM BUMar Outdoor Olning 11 ft 911 11 ft 1111 Oft 14.5 ft Multi -Modal Focused • Central and White remain one-way pairs with two lanes in each direction • Parking is removed on one side of Central and one side of White • Wide sidewalk, landscaping, and outdoor dining are placed on Central • A two-way cycle track is placed on White St IKl40h1:1 U 0 Getting To and Sticking Around • Central and Whit 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, this impacts parking on one side GETTING TO AND STICKING AROUND Central White 22nd 12th 8th 11' �T liIF2 D ILI U U z O 1- z OI 0 White-N. of 9th - ;• Parking 'p-jdj Travel Lane yyy j Travel Lane SLOW AND FLOW Central White 22 nd Ell TT 13th it T1 9th low And Flow Central and White remain one-way pairs with two lanes in each direction from 22nd 9th • Parking on both sides Transition to one lane at 9th Street From 9th to 4th, trave' lanes change to one • Parking is remove on one side • Wide sidewalk, landscaping, and outdoor dining ar placed on Centr and White Kl DMILI V_ U z 0 z 0 Different Roles, Different Roads Central and Whit are one-way pairs with two lanes in each direction from 4th to 13th Transition at 13th, Central and White change to two-way streets Parking remains on both sides of the street Central-N. of 9th h Sidewalk 12 f1 Parking o Travel Lane Travel Lane E : Parking 911 11 f1 T1 ft 9fl Central-S. of 9th DIFFERENT ROLES DIFFERENT ROADS Central White 22nd 13th 9th 411 4th n1114.141 U_ 5 U Evaluation Matrix Safety Equity Connectiuity Economic Deuelopment Conflict Points Predictive Crashes/year Pedestrians Bicycles Transit Through Travel Times (min) Heavy Vehicles / EMS On Street Parking Landscape Sidewalk Central White Do Nothing Both Central & White Remain One Way 531 94 Status quo facility on parallel street Status quo 4 5 Prefer two lanes to allow passing parking both sides limited trees. Most on white now Status quo Multi -Modal Focus Both One -Way Cycle Track on White 523 94 Wider sidewalks Facility Present on White Enhanced bus stop 4 5 Prefer two lanes to allow passing parking loss one side 6' Grass Blvd, additional tree wells 12' sidewalk, 16' dining Getting to and Sticking Around Both Two -Way Parking on Both Sides 976 40 bumpouts facility on parallel street stops on both sides of street 5 5 Only one lane for travel each direction parking loss 8th to 12th one -side Additonal tree wells 12'sidewalk Slow and Flow Remain One -Way One Lane: 9th to 4th 503 94 wider sidewalks & bumpouts facility on parallel street Room for enhanced stops 13 25 Transition down to 1lane at 9th parking loss one side 9th to 4th large landscape area 9th to 4th Regular SW 22nd to 13th, 12' SW 9th to 4th Asymmetry : different roads, different roles Two -Way: 22nd to 13th; One -Way: 13th to 4th 757 61 bumpouts facility on parallel street Status quo 5 5 Transition at 13th, more turns needed parking both sides Additonal tree wells 12' sidewalk LEGEND Negative Effect Neutral Effect Positive Effect Bolton-Menk.com Q CENTRAL AVENUE AND WHITE STREET CORRIDOR TRAFFIC STUDY Council Work Session September 30, 2024 CENTRAL & WHITE Agenda 1. Where we are 2. What We've Learned So Far 3. What We Found 4. Putting it all Together 5. Discussion 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. CENTRAL & WHITE Project Location ti Restaurants 0. Hotels C3 Things to do ft Museums 9 -ransit Of -let roa, Sundown stain Resort Dubugife- i Arboretum • 'ardns " Clote Creek Park 9 Asburyi' ... Dubuquedrinty. .................. Fairgrounds rouEj (alia NORTH EN: Loras College 9 Best Western Plus Butug, - ROCKDALE ... Key We Goole One -Way Portion, 36 study intersections, 44 blocks Rutledge 9 Lemoici irrigation. Inc c Fairpla Study Schedule April - May DISCOVER CENTRAL & WHITE Study Kick -Off Data Collection Existing Conditions Public Events & Interactive Comment Map CENTRAL & WHITE June - July ANALYZE CENTRAL & WHITE Analyze Data & Public Feedback Concept Design Public Events & Community Survey Mm- August - September REFINE LET'S UNITE! CENTRAL & WHITE Evaluate Alternatives Identify Preferred Alternative Public Engagement Report October - December SHARE LET'S DO THIS! CENTRAL & WHITE Share Final Recommendations Implementation Plan Open House Public Hearing Bolton-Menk.com Downtown has Several Districts and Destinations that are divided by Central and White Streets - a former state highway Travel across is just as important as travel along People use them all different ways Central and White can be a zipper instead of a barrier Side Streets play an Important Role Bolton-Menk.com Corridor Connections Assumptions: 14th St Bridge Pine St Connection 18th St Plaza Bolton-Menk.com Outreach- What we've Learned So Far 115 Citizens Engaged at In Person Events 827 Submissions to Public Survey • 43 Corridor Residents • 32 Corridor Businesses/Property Owners Resident & Business Owner Respondent Area Split 22% 78% S. of 13th ■ N. of 13th LET'S Q EXPLORE! CENTRAL & WHITE In Person Events July & August 2024 Farmer's Market National Night out Launched Survey July to August 2024 Bolton-Menk.com What We've Learned So Far —Central What is most important to you? 70% - 60% 50% - 40% 30% - 20% - 10%- 0 Wider Sidewalks Maximized Parking Bike Amenities • Non -Corridor Corridor/Neighborhood Corridor/Neighborhood Respondents +, /3B1 Residents (43) Business/Property Owners i;,321 • Corridor Residents prefer Wider Sidewalks on Central • Corridor Businesses prefer maximized parking • Non -Corridor Respondents want Maximized Parking Address option was optional, so we don't know everyone CENTRAL & WHITE Bolton-Menk.com What We've Learned So Far —Central ONE-WAY VS. TWO-WAY TRAFFIC Do you prefer one-way or two-way traffic on Central Avenue? 70% 60% - 50% - 40% - 30% - 20% - 10% - 0 One -Way Non -Corridor Respondents (13 ) (77,73 Two -Way No preference Corridor/Neighborhood • Corridor/Neighborhood Residents (43) CENTRAL & WHITE Business/Property Owners (32) • Corridor Residents prefer one-way on Central • Corridor Businesses prefer two-way on Central • Non -Corridor Respondents want One -Way Bolton-Menk.com What We've Learned So Far —White What is most important to you? 70% 60% - 50% - 40% - 30% - 20% - 10% - 0 Wider Sidewalks Non -Corridor Maximized Parking 44% 3 6 % Bike Amenities Corridor/Neighborhood Corridor/Neighborhood Respondents (/41) Residents (42 CENTRAL & WHITE Business/Property Owners (.32) • Corridor Residents prefer Bike Amenities on White • Corridor Businesses prefer maximized parking • Non -Corridor Respondents want Maximized Parking • 7 respondents said bike facility could be on parallel street, but desire commitment to something installed soon Bolton-Menk.com What We've Learned So Far —White Do you prefer one-way or two-way traffic on White Street? 70% 60% 50% - 40% 30% 20% - 10% 0 One -Way Non -Corridor Respondents (736) 77.1 Two -Way Corridor/Neighborhood Residents (43) CENTRAL & WHITE • No preference Corridor/Neighborhood Business/Property Owners (32) • Corridor Residents prefer One -Way on White • Corridor Businesses prefer Two -Way on White • Non -Corridor Respondents want One -Way Bolton-Menk.com This resulted in the following Alternatives: • Multi -Modal focused (One-way) • Getting To and Sticking Around (Two-way) • Slow and Flow (One-way) • Different Roads, Different Roles (Combination) Bolton-Menk.com Existing cross sections Sidewalk Buffer Parking 6bft aft Eft Central Travel Lane > : (ravel Lane Parking Sidewalk 14 ft 14 ft Eft 10ft • 12 ft to 14 ft travel lanes • 6 ft to 8 ft parking lanes • 5 ft to 10 ft sidewalks Bolton-Menk.com Design Criteria (SODAS) Travel Lane Width On -Street Parking Width Sidewalk Widths Cycle Track Width Curb Radius SUDAS Used in Design 11 ft to 12 ft for Arterials 11 ft 7ft to 10ft 9 ft 6ft to 8ft with planting buffer 6 ft min with buffer 8ft to 10ft when next to curb 10ft min 10ft to 12ft 10 ft Based on Design Vehicle Bumpout at regular traffic intersections Based on Design Vehicles No bumpouts at truck focused intersections / SUDAS • recommends 10 ft min travel lanes in urban areas • clarifies that roads with heavy trucks or buses should use 11 ft lanes Bolton-Menk.com MULTI MODAL FOCUSED Central White 22nd it 13th it it 9t1, Multi -Modal Focused • Central and White remain one-way pairs with two lanes in each direction • Parking is removed on one side of Central and one side of White • Wide sidewalk, landscaping, and outdoor dining are placed on Central • A two-way cycle track is placed on White St uI El�i1U��� M1Y1►IDDWI Multi -modal focused cross sections f N ��v 0-0 , II Akb. a :ter t., k.. 70- A. \ \ Bike Buffer Travel Lane FlitYt! Travel Lane Mkt Parking .:. Sidewalk ' n... 10 ft 5 ft 11 ft 11ft 9ft 10.5 ff Bolton-Menk.com GETTING TO AND STICKINt AROUND Central White 22nd 1T� 1T 12th 8th �aT 1T 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 signalize intersections • A two-way left turn lane is needed from 8 to 12th, removes parking on one side uI El411011Z M1Y1►IDDWI Getting To and Sticking Around cross sections Central Sidewalk Yi.,�' Parking X.v,y, Travel Lane S'ti Y%' Travel Lane ice;" Parking , ;§ Sidewalk 12ft 9ft 11ft 11ft 9ft 12ft Parking ygr Travel Lane 4 Travel Lane z. Parking 9ft 11ft 11ft 9ft f N L: Sidewalk 12ft Bolton-Menk.com Slow and Flow Option A • Central and White remain one-way pairs with two lanes in each direction from 22nd to 9th • Parking on both sides • From 9th to 4th, travel lanes change to one • Parking is removed on one side • Max amenities placed on Central and White SLOW FLOW Central White 22nd TT 13th 9th uI El411011Z WWI DWI Slow and Flow Cross Sections White-N. of 9th Sidewalk 12ft Parking "' Travel Lane Travel Lane Parldnq 9ft 11ft lift 9R Sidewalk 12ft Parking "' Travel Lane II It 13ft f N Sidewalk 19 ft Bolton-Menk.com Different Roads, Different Roles • 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 DIFFERENT ROLES DIFFERENT ROADS Central White 22nd �T 13th 9th it FA I KU Mil: 4th Different Roads, Different Roles Cross Sections Central-N. of 13th Parking Travel Lane 9ft lift Travel Lane 11 ft Parking ' - Sidewalk _ 9ft 12ft _2k.L. Central-S. of 13th f N Bolton-Menk.com Safety Guiding Principles and Evaluation Criteria Economic Development Equity Connectivity Safety Evaluation Matrix Safety Equity Connectiuity Economic Development Conflict Points Predictive Crashes/year Pedestrians Bicycles Transit Through Travel Times (min) Heavy Vehicles / EMS On Street Parking Landscape Sidewalk Central White Do Nothing Both Central & White Remain One- Way 531 94 Status quo facility on parallel street Status quo 4 5 Prefer two lanes to allow passing parking both sides limited trees. Most on white now Status quo Multi -Modal Focus Both One -Way Cycle Track on White 523 94 Wider sidewalks Facility Present on White Enhanced bus stop 4 5 Prefer two lanes to allow passing parking loss one side 6' Grass Blvd, additional tree wells 12'sidewalk, 16' dining Getting to and Sticking Around Both Two -Way Parking on Both Sides 976 40 bumpouts facility on parallel street stops on both sides of street 5 5 Only one lane for travel each direction parking loss 8th to 12th one -side Additonal tree wells 12' sidewalk Slow and Flow Remain One -Way One Lane: 9th to 4th 503 94 wider sidewalks & bumpouts facility on parallel street Room for enhanced stops 13 25 Transition down to 1 lane at 9th parking loss one side 9th to 4th large landscape area 9th to 4th Regular SW 22nd to 13th, 12' SW 9th to 4th Asymmetry : different roads, different roles Two -Way: 22nd to 13th; One -Way: 13th to 4th 757 61 bumpouts facility on parallel street Status quo 5 5 Transition at 13th, more turns needed parking both sides Additonal tree wells 12'sidewalk LEGEND Negative Effect Neutral Effect Positive Effect Bolton-Menk.com LEGEND MULTI MODAL FOCUSED Central White u 22nd 13th 9th 4th GETTING TO AND STICKING AROUND Central White 22nd cli 441 12th 8th 4th SLOW AND FLOW Central White 22nd Alt A 111 13th 11 lif 9th 4th DIFFERENT ROADS, DIFFERENT ROLES Central White 22nd ali 13th 411 TT 9th 4th SIDEWALK LANDSCAPING CYCLE TRACK PARKING MIXED USE U U DOWNTOWN What we found: • We can change lanes with max 1.5 min change in travel times. • Based on MPO projections of growth, all alternatives work with little delay until the 2050 PM Period. 2050 PM Period is the most stressed. • Traffic Prefers to stay on Central Avenue and travel both directions when two-way • To fit more amenities for bikes and pedestrians parking is removed on one side of the street or travel lanes reduced LET'S Q EXPLORE! CENTRAL & WHITE • A cycle track on White Street can be part of any of the alternatives • Two -Way Streets require left turn lanes at all signalized intersections and a two-way left turn lane (3-lane section) from 8th to 12th which impacts parking • High Volume turns at truck focused intersections at 9th, 11th, and 14th can be accommodated with a small impact on parking with any alternative Bolton-Menk.com Side Streets The Central / White Zipper is a series of blocks — not just two streets Side Street enhancements can support the corridor with - Additional parking - Public spaces and plazas - Greenspace and public Art Bolton-Menk.com Side Streets Additional parking Plaza Space Greenspace Bolton-Menk.com Putting it All Together: • Corridors are part of a larger transportation system — Local and regional • Connections to and across the corridor is as important as connection along its length • Being an older city with constrained rights of way, there will be potential tradeoffs • 14th Street overpass and Pine Street will re-route freight traffic, which will reduce traffic on the south end and 9th and 11th. • Side Streets are important: 18th Street Plaza should be pursued as residents desire outdoor community spaces • A North -South bike facility is important. If not on White, then a commitment to a parallel avenue is necessary • Changing the configuration of corridor will not impact travel time significantly Bolton-Menk.com Next Steps • Stakeholder and Focus Group Engagement —October 2024 • Open House — October 17, 2024 • Council Vote on Preferred Alternative— November 18, 2024 • Public Hearing —January 2025 CENTRAL & WHITE LET'S ©0) UNITE! CENTRAL & WHITE Bolton-Menk.com Discussion Slow Flow 9th Street Transition 11' THRU LANE ,EB TO SB WB-50 MOVEMENT NOT POSSIBLE WITHOUT SURMOUNTABLE .CURB 9TH ST 953 951 933 SCALE IN FEE BOLTON & MENK x 801 ATERNATIVE 2' SLOW AND FLOW CENTRAL AVE & WHITE ST CORRIDOR STUDY • Truck Turns can work • Would lose 4 on -street parking spaces on 9th between Central and White Bolton-Menk.com Different Roles - 13th Street Transition DUBU.UE BANK TRUST r 13TH ST 11' THRU LANE 11' TURN LANE© 11' THRU LAN TT ELEMENTARY SCHOOL UMW- 1310 1- 125 ornme I ATERNATIVE 3• DIFFERENT ROLES DIFFERENT AREAS CENTRAL AVE & WHITE ST CORRIDOR STUDY • Large Vehicle Turns can work • Bus shown • Would lose 16 on -street parking spaces on 13th between Central and White Bolton-Menk.com Parking Utilization • 256 Total On -Street Spaces on Central • 247 Total On -Street Spaces on White • Highest Parking Peak is Weekday Evening Parking Occupancy e Weekday P%1 Urol2auon — - 25% 25% - 60% — 60% - 80% — > 80% No Parking Spaces wo CIFeet on-Menk.com Volumes & Operations CENTRAL & WHITE °°°�Pd ��<r Millwork B, d(jA `o� D i s t r i c o \AY6 13°° JP ��ii ,' 52 3, P d s< 1 9°° at" s` �Pd c�4°° • ��t it" 6 °° JPd �© 5<" S m Bee Branch OP w%ii 221'6 5< Dst s< c 2p<" S ,9t"s< Washington �� Neighborhood gat" �s< JPd 3°° JPd 810 O O (S) t" s`g°° �Pd t6 ° `j�'��J �� 16,aO° JPd 62 0 ® s< 6 �3 6t" S Main Street/ n<"st Downtown 62 Port of Dubuque $1 or, Chaplain Schmitt Island Legend CAM Operational Results (LOS) PM Operational Results (LOS) QLOS A-C OLOS D •LOS E or F °Signalized Intersection Average Daily Traffic Slow and Flow Cross Sections Parking -'v'; Travel Lane It 13ft f N Bolton-Menk.com