#5 part 1: presenting the model design manual for living streets - snyder, moule
Post on 15-Nov-2014
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What Current Manuals Give Us
What Street Manuals Could Give Us
Who Prepared The Manual
Organiza;ons • AARP Public Policy Ins/tute • American Society of Landscape
Architects • Associa/on of Pedestrian and Bicycle
Professionals • California Department of Health
Services • California Strategic Growth Council • City of Long Beach • City of Los Angeles Planning
Department • Council for Watershed Health • Congress for the New Urbanism • Federal Highway Administra/on
• Green Los Angeles Coali/on • Ins/tute of Transporta/on Engineers • Local Government Commission • Los Angeles Chapter of the American
Ins/tute of Architects • Los Angeles County Department of
Public Health • Na/onal Complete Streets Coali/on • Project for Public Spaces • Safe Routes to School Na/onal
Partnership • Smart Growth America • UCLA Luskin Center for Innova/on • Walkable and Livable Communi/es
Ins/tute
Legal Standing of Street Manuals • AASHTO “Green Book” • The California Highway Design Manual
• Local manuals or street design standards
• MUTCD • The California Fire Code • CA Streets and Highways Code and California Vehicle Code
Living Streets Vision • Equity • For people of all ages and
physical abili/es whether they walk, bicycle, ride transit, or drive
• Integrate connec/vity and traffic calming with pedestrian-‐oriented site and building design
• Connect people • Local people design their
streets
• Are invi/ng • Foster healthy commerce • Strengthen and enhance
neighborhoods • Encourage ac/ve and
healthy lifestyles • Integrate environmental
stewardship • Vary in character by
neighborhood, density, and func/on
Street Networks and Classifica;on
Networks
Block Size
Street Typologies
Boulevard
Avenue
Street
Alley
Transit Mall
Shared Space
Traveled Way Design
Design Principles
• Accommodate all users
• Design for appropriate speed in context
• Safety
Access Management
Cross Sec;onal Elements
• On-‐street parking • Bicycle facili/es • Transit facili/es • Travel lanes • Medians • Turn lanes
Intersec;on Design
Principles of Good Intersec;on Design
• Compact • Avoid conflicts • Simple right-‐angle intersec/ons are best
• Avoid free-‐flowing movements
• Apply access management principles
• Signal /ming considers all users
Universal Access
Sidewalk Zones Single-‐Family Residen;al
Pedestrian Crossings
Principles of Pedestrian Crossings • Safe crossing is a must • Consider all users • Meet accessibility
standards and guidelines. • Crossings must be
“comfortable” • Use treatments with
highest crash reduc/on factors
• Don’t compromise safety to accommodate traffic flow
• Design begins with appropriate speed. In general, urban arterials should be designed to a maximum of 30 mph or 35 mph
• Every crossing needs tailored design
Design Considera;ons • Ideally, uncontrolled crossing
distances should be no more than 21 feet. Streets wider than 40 feet should be divided by installing a median or two crossing islands.
• Maximum of three lanes per direc/on on all roads (plus a median or center turn lane).
• There must be a safe, convenient crossing at every transit stop.
• Double (or triple) le` or right turns concurrent (permissive) with pedestrian crossings at signalized intersec/ons must never be allowed.
• Avoid concurrent movements of motor vehicles and people at signalized intersec/ons.
• People should never have to wait more than 90 seconds to cross at signalized intersec/ons.
• Pedestrian signals should be provided at all signalized crossings where pedestrians are allowed.
Pedestrian Toolbox
• Guidance on using each • A few samples
Crossing Islands
Advanced Yield Line
Scramble Intersec;on
Raised Crosswalk
Rectangular Rapid Flash Beacons
Chapter 8: Bikeway Design
Shared Use Path
Bike Lane
Bike Route
Bike Boulevards
Bike Boulevards
Buffered Bike Lane
Cycle Tracks
Bike Box
Transit Accommoda;on
Traffic Calming
Framework/Non-‐Framework Streets Use Cross-‐Sec;onal Measures
• Reduc/on in # of lanes • Reduc/on in lane width • Medians, islands • On-‐street parking • Street trees • Bike lanes • Colored or textured
pavement • Shared space • Pedestrian-‐scale ligh/ng • Curbless medians and
streets
Non-‐Framework (& Framework at low ADT) Streets Use Periodic Measures
Horizontal Measures
• Roundabouts • Mini-‐roundabouts
and mini-‐circles
• Chicanes • Impellers
• Short medians
Ver/cal Measures
• Raised crosswalks and intersec/ons
• Speed cushions • Speed tables • Speed humps
Narrowings
• Yield streets • Bulb-‐outs • Pinch points
Streetscape Ecosystem
Goals of Streetwater Management
• Reduce runoff • Slow flow • Spread flow • Sink • Store • Use
Street Trees
Street Furniture • Benches and sea/ng • Bollards • Street vendor stands • Informa/onal kiosks • News racks • Parking meters • Signs • Refuse receptacles • Public art • Sidewalk dining • Clocks, fountains, etc.
Re-‐Placing Streets
Designing Land Use Along Living Streets
Design Principles • Compact, connected, complete, con/nuous • Organize places at a human scale • Safety, convenience, comfort for all users • Create places for people to interact; plazas, parks, squares • Well connected street network of small blocks • Locate land uses within walking distance of one another • Buildings should face the street, have windows looking onto
the street and open to the sidewalk • On-‐street parking provides a buffer • Setbacks should enhance pedestrian experience • Off-‐street parking should not disrupt pedestrian experience • Shared off-‐street parking reduces non-‐produc/ve land use
RetrofiZng Suburbia
Cul-‐de-‐Sac Connector
Remade Neighborhood Exis/ng
Community Engagement
Adop;on
• Download www.modelstreetdesignmanual.com
• Manual as a template • Customize • Formalize adop/on
for$
L o s $ A n g e l e s $ C o u n t y 2 0 1 1
YOUR CITY’S NAME Date
Ryan Snyder Ryan Snyder Associates
ryan@rsa.cc 310-‐475-‐3895
Michael Moule Nelson Nygaard mmoule@nelsonnygaard.com
415-‐281-‐6920
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