Ocean Park Boulevard Green Street Project Alternatives ... · Ocean Park Boulevard Green Street Project ... • Bioswales with infiltration - Alternative A only ... Microsoft PowerPoint

Ocean Park Boulevard Streetscape Improvement Project Alternatives Presentation | Planning Commission | 3.04.09

Planning CommissionMarch 4, 2009

Ocean Park BoulevardGreen Street Project

Alternatives & Trade Offs


Purpose of Tonight’s Meeting

• Review concept plans and options

• Provide input on alternatives and trade-offs


Project Objectives• Prepare conceptual streetscape alternative designs utilizing

community input and green street principles.• Improve walkability and bikeability.• Enhance pedestrian safety.• Implement environmental sustainability.• Provide for beautification and enhanced greenery. • Calm traffic and conflicts at intersections.• Maintain views from the 4th Street overpass.• Address noise and vibrations at bus stops (i.e. 4th Street overpass).• Provide gateways, landmarks, and public art (save the whale mural).

Project Objectives

CORE CITY PRINCIPLES: Open Space, Green Streets & Pathways, Neighborhood Enhancement, Connectivity, City as Park, & Pedestrian Orientation


Comparable Curb Widths in Santa Monica• Santa Monica Blvd. between Lincoln & 26th – 80’

• Wilshire Blvd. between Lincoln & City limits – 100’

• San Vicente Blvd. between Ocean & 7th – 130’

Typical Curb to Curb Widths

65’ – 75’ Typ. 126’ – 143’ Typ.

Typical curb widths at the 4th Street Overpass

COMMUNITY PRIORITY:Reclaim Ocean Park Boulevard as Open Space


Existing Pedestrian Crossings

4 6th Street 5 Lincoln Boulevard

1 Main St / Neilson Way 2 3RD Street 3 4th Street

1 32 4 5

Note the lack of marked crosswalks between 6th Street & Lincoln Boulevard

EXISTING PEDESTRIAN CROSSINGS


Single-purpose infrastructure to accommodate cars for former density

Narrow sidewalks

Unused / underutilized 20’ right-of-way Potential for green relief

Ocean Park Boulevard Today

Conflicts between pedestrians, bicycles, and vehicles

Narrow sidewalks at overpass

EXISTING CONDITIONS


Existing Conditions

Limited tree canopy from 12 year old Cassia trees

Austere streetscape Pocket parks with no amenities & limited landscapingMissing trees

TREE CANOPIES AND OPEN SPACES


2 Public Workshops4,000 Invitations • Residents • Business community • Bicycle and pedestrian

advocates• School District

representatives

3/3/08 over 60 participants 4/23/08 over 40 participants

Community Outreach

• Address walkability and bikeability

• Enhance pedestrian safety

• Implement environmental sustainability

• Provide for beautification and enhanced greenery

• Calm traffic and conflicts at intersections

• Maintain views from the 4th Street overpass

• Address noise and vibrations at bus stops(4th Street overpass)

• Provide gateways, landmarks, and public art (save the whale mural)

• Presentation of three alternatives; A, B & C

• Alternative A – based upon OPB Task Force approach

• Alternative B – maximize medians approach

• Alternative C – grade-separated bikeway approach

• Presentation of options -4th Street viewing deck, traffic circles and bus stops below overpass

• Alternative C not pursued after input

COMMUNITYOUTREACH


Public Hearing Comments

PUBLIC HEARING COMMENTS

CITY COUNCIL (1.27.09)

• ‘Mix and match’ best features from both plans

• Re-examine issues addressed by public speakers related to additional crosswalks, bike lane features, and traffic circles.

RECREATION AND PARKS COMMISSION (2.19.09)

• Maximize opportunities to expand green areas:

• Expand community forest and increase tree canopy

• Maximize landscaping in center medians

• Explore hybrid approach to combing both concepts


The Alternatives&

Trade Offs


ALTERNATIVE A: Adapted from the OPB Task Force Consensus Plan

Alternative A• Sidewalk extensions• Landscaped medians east of 5th St.• New crosswalks• Class II bike lanes• Pedestrian lighting• Vehicular turn constraints• Benches, bike racks, trash• Bus stops relocated to 4th St. overpass• $3.2M – $4.2M construction cost


ALTERNATIVE A: Concept Design Features

5 ft. Curb Extensions(bioswale or parkway)

Landscaped Medians6 ft. to 14 ft. width, 96 ft. avg. length

Marked Crosswalkswith pedestrian refuge


ALTERNATIVE A: Typical Section

1.1


Project will collect runoff from over 55 acres in 3 watersheds


ALTERNATIVE A: View West from 4th Street Bridge


ALTERNATIVE A Features:Alternative B• Landscaped medians• Limited curb extensions• New crosswalks• Class II bike lanes• Pedestrian lighting• Benches, bike racks, & trash cans• Vehicular turn constraints• Bus stops relocated to 4th St overpass• $2.5M – $3.5M construction cost

ALTERNATIVE B: Maximize Median Opportunities


ALTERNATIVE B: Concept Design Features

Landscaped Medians12 ft. to 20 ft. width, 105 ft. avg. length

Marked Crosswalkswith pedestrian refuge


ALTERNATIVE B: Typical Section

2.1


ALTERNATIVE B: View west from 4th Street Bridge


ALTERNATIVE B: View east to 4th Street Bridge with optional viewing platform


Sustainability Measures• Bioswales with infiltration - Alternative A only

• Increased tree canopy - Greater on Alternative B

• Water-retaining tree wells – Alternative A and Alternative B

• Class II Bike Lane – Alternative A and Alternative B

• Utilization of permeable concrete – Alternative A and Alternative B

• Optional permeable concrete sidewalks – Alternative A and Alternative B @ $285,000

• Optional permeable concrete curb and gutters – Alternative A and Alternative B @ $80,000

• Optional permeable asphalt roadway – Alternative A and B @ $500,000

Alternatives A & B: Sustainability Measures and Options

Options• Viewing Deck at 4th St. Overpass – Greater feasibility with

Alternative B @ $400,000


ALTERNATIVE A

ALTERNATIVE B

• Closely matches OPB concept• Introduces Class II Bicycle lanes• Calms traffic with medians and

additional crosswalk control• 650 linear feet of center medians• 2000 linear feet of curb extensions

used for bioswales (4’ – 5’ width)• Captures more rainwater• Moves traffic away from homes and

buffers pedestrians from vehicles• Higher cost (+/-$650,000)

• Maximizes median opportunities• Introduces Class II Bicycle lanes• Calms traffic with medians and

additional crosswalk control• More tree canopy• 1500 linear feet of center medians• 250 linear feet of curb extensions• Captures rainwater at medians• Provides greater opportunity for

viewing platform option• Lower Cost (w/viewing platform same

cost as Alternative A)

ALTERNATIVES A & B: Comparison Summary


Community Issues• Crosswalk at 5th Street• Crosswalk at 2nd Street• Dedicated bike lane• Roundabouts and Circles

Community Issues and Next Steps

Next Steps• April/May 2009 - Community Meeting #3• May/June 2009 - Completion of Summary Concept and Report and

Endorsement by City Council• FY 2008/2009 - Construction Documentation: $350 - $450K, CIP Approved• FY 2009/2010 – Buildout: estimated cost $4.1M, CIP Approved


Summary PointsAlternative A and Alternative B realize Project objectives – differently, both…• Enhance walking and biking• Increase pedestrian safety • Promote environmental sustainability• Beautify streetscape and enhance greenery • Calm traffic and resolve conflicts at intersections• Improve intermodality along Ocean Park Blvd. and at bus stops• Provide opportunities for gateways, landmarks, and public artAlternative A• Capture more storm water runoff• Costs approximately $250,000 - $650,000 moreAlternative B• Better creates opportunity to enhance view from the 4th St. overpass• Maximizes green median identity options

ALTERNATIVES A & B: Summary


Purpose of Tonight’s Meeting

• Review concept plans and options

• Provide input on alternatives and trade-offs


We are here

The Planning Process and Next Steps

Ocean Park Boulevard Streetscape Improvement Project Alternatives Presentation | Planning Commission | 3.04.09The Planning Process and Next Steps XX

Ocean Park Boulevard Streetscape Improvement Project Alternatives Presentation | Planning Commission | 3.04.095th Street Crosswalk

Ocean Park Boulevard Streetscape Improvement Project Alternatives Presentation | Planning Commission | 3.04.092nd Street Crosswalk and/or Compact Traffic Circle

Ocean Park Boulevard Streetscape Improvement Project Alternatives Presentation | Planning Commission | 3.04.092nd Street Crosswalk and/or Compact Traffic Circle


Firehouse #2

2nd Street Compact Traffic Circle

Ocean Park Boulevard Streetscape Improvement Project Alternatives Presentation | Planning Commission | 3.04.09Dedicated Bicycle Lane Analysis


Why Choose Vegetated Swales:• Widely-accepted stormwater strategy• Simple to construct• Relatively low-cost to implement

Potential Constraints:• Need long, continuous spaces which can be difficult to find in

retrofit conditions • Difficult to incorporate other streetscape elements within swales

(lighting, signage, etc.)• More difficult to provide good pedestrian circulation through swales• Often designed to be “too deep” and, as a result, are not

aesthetically pleasing• Long-term maintenance requirements

Bioswales and Infiltration Planters XX

Source: San Mateo Countywide Water Pollution Prevention Program


Residential

Steep Grade

Arterial

School

Boulevard

Parking Lot

Bioswales and Infiltration Planters


Documents

Ocean Park Boulevard Green Street Project Alternatives ... · Ocean Park Boulevard Green Street Project ... • Bioswales with infiltration - Alternative A only ... Microsoft PowerPoint