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Bicycle Facility Planning and Design UpdateDeWayne Carver, AICP
State Bicycle/Pedestrian Coordinator
FDOT Office of Roadway Design
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Topics• Shared Lane Marking Revised Guidance
• Bike Lane/Travel Lane Width Redistribution
• Buffered Bike Lanes
• Crash Types and Countermeasures
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Florida Bicycle Law• Bicycles are considered vehicles when operating on the roadway
• Must ride in same direction as traffic
• Bicyclists have “all the rights and responsibilities of pedestrians” when on the sidewalk or a path
• Must have lights and reflectors at night
• 3’ clear law
• Mandatory bike lane law, except when….
• Must provide for bicycle and pedestrian transportation when planning, designing, and building roads
• PPM, Design Standards provide criteria and standards – BOTH updated
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Typical Bicycle Crash Types
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Common Fall Causes• Sand or gravel
• Pavement condition
• Longitudinal cracks
• Gutter seams
• Bollards
• Drain Grate
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Motor Vehicle Crash Types• Left Cross
• Right Hook
• Drive Out
• Sideswipe/ Rear Overtaking
• Dooring
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Edge Riding Behavior• Sets up many of these crash types (including sideswipes
and rear-overtaking
• Must be avoided or discouraged in facilities design
• Need to encourage either lane control, or provide sufficient space to avoid edge riding pitfalls
• back
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Revised Guidance• Shared Lane Marking Placement
• Bicycle lane minimum and recommended widths
• Recommended width based on travel speed
• New facility type – Buffered Bike Lane
• New flexibility on travel lane widths – 11’ acceptable in most conditions now
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Shared Lane Markings
• back
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• back
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Bicycle Lanes• 5’ minimum width/7’ minimum if adjacent to on-street
parking
• 6’ recommended width for 45 mph or greater
• 6’ minimum or 7’ buffered on any 6-lane roadway
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Lane Width Flexibility• Retrofit existing roads for narrower travel lanes and
wider bike lanes
• Allows more options for bike lane applications
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Current Standard – Max Travel Lane Width, Minimum Bicycle Lane Width
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6L 40 mph or greater – >10% Trucks
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6L 40 mph or greater –10% or less Trucks
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4L Standard today 12/12/4
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4L 45 or more mph - 6’ bike lane
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4L 40 mph or less-5’ minimum width bike lane ok
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4L 35 mph or less (by exception or variation) • back
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Buffered Bike Lane
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