Your Bikeway Infrastructure Toolbox (Tool guide)Hoffman Estates, IL Oak Park, IL. Complete Streets...
Transcript of Your Bikeway Infrastructure Toolbox (Tool guide)Hoffman Estates, IL Oak Park, IL. Complete Streets...
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Your Bikeway Infrastructure Toolbox (Tool guide)Illinois Bike SummitSeptember 19, 2016
Nathan Roseberry, P.E.
www.tylin.com
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Bikeway Tools – How to Use Design Guides
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Federal Highway Administration's (FHWA) support for taking a flexible approach to bicycle and pedestrian facility design. The American Association of State Highway and Transportation Officials (AASHTO) bicycle and pedestrian design guides are the primary national resources for planning, designing, and operating bicycle and pedestrian facilities. The National Association of City Transportation Officials (NACTO) Urban Bikeway Design Guide and the Institute of Transportation Engineers (ITE) Designing Urban Walkable Thoroughfares guide builds upon the flexibilities provided in the AASHTO guides, which can help communities plan and design safe and convenient facilities for pedestrian and bicyclists. FHWA supports the use of these resources to further develop nonmotorized transportation networks, particularly in urban areas.
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Bikeway Tools – How to Use Design Guides
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Chapter 17 and others
State Routes
Chapter 42 and others
Local Routes (Fed, State $)
On Street, Off Street
All Routes
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Bikeway Tools – How to Use Design Guides
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Part 9 and othersInterim Approvals, RFEs
Traffic Control DevicesSeparated Bike LaneUrban Bikeways
Neighborhood and Arterial Arterials
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Bikeway Tools – How to Use Design Guides
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Other Country and State DOT Design Guides
Ped and Traffic CalmingDesign Guides
Other Urban Guides
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Bikeway Tools – Neighborhood Streets
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What does a comfortable neighborhood street
design for bikes look like?
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Chicago, IL
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Chicago, IL
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Hoffman Estates, IL
Oak Park, IL
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Complete Streets Coalition
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Bikeway Tools – Neighborhood Streets
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Volume / Speed < 1,500 >1,500
< 20 MPHStreet is already
comfortableConsider volume
management
> 20 MPHConsider speed management
Consider both volume and speed
management
How do I make it comfortable?
1. Speed2. Volume
3. Crossings
Guides: Local Roads Manual, NACTO UBDG, Traffic Calming Design Guides
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Bikeway Tools – Neighborhood Streets (Speed)
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Vertical Speed Management:Speed Humps, Tables, CushionsRaised Crosswalks
Chicago, ILSpeed HumpsCost: $3,000
Horizontal Speed Management:Traffic Circles, Chicanes, Chokers, Neckdowns, Curb Extensions,Skinny Streets…..On Street Parking
Chicago, ILChicaneCost: $15,000
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Bikeway Tools – Neighborhood Streets (Volume)
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Partial Closures Diverters / Movement Restrictions
Chicago, ILPartial ClosureCost: $15,000 DRAFT CONCEPT
FOR Chicago, ILCost: $2,000 – 30,000
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Bikeway Tools – Neighborhood Streets (Crossings)
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UnsignalizedRefuge Islands, Markings, Signage, Curb ExtensionsRRFB, HAWK, All-Way Stops
SignalizedUse Existing Signals, Modify with Bike Signals
Chicago, ILPedestrian Refuge IslandCost: $30,000
Chicago, ILBicycle SignalsCost: $15,000
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Bikeway Tools – Arterial Streets (Conventional)
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Chicago, IL
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Bikeway Tools – Arterial Streets
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Allowable in 2009 MUTCD Other treatments that are not traffic control devices, so no MUTCD restriction on their use
Source: FHWA (http://www.fhwa.dot.gov/environment/bicycle_pedestrian/guidance/mutcd/index.cfm)
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Bikeway Tools – Arterial Streets (Separated)
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Buffered Bicycle LaneGuide: NACTO UBDGCost: $50-100K per mileChicago, IL
Buffered Bicycle LaneGuide: NACTO UBDGCost: $75-150K per mileChicago, IL
Separated Bicycle LaneGuide: NACTO, FHWACost: $150 - 700K per mileChicago, IL
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Bikeway Tools – Arterial Streets
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Section 42-3.03(c): “On highways with ADT greater than 10,000 consider a minimum width of 6 ft that may include an optional 2 ft striped buffer zone”
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Bikeway Tools – Arterial Streets
Buffer Width: 1.5’ Min (2’)Hatch: 20’ Spacing
Buffer parking side firstCan buffer both sides
NACTO UBDGMUTCD
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Bikeway Tools – Arterial Streets
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NCHRP 766:• If you have space,
add buffers• Stripe lanes at
minimum widths and buffer in between
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Bikeway Tools – Arterial Streets
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How to Implement – Reduce Widths
Travel Lanes 10’ – 12’ BLR – 10’ min from edge of pavementBDE – 11’ Min (10’ with design exception)10’ Lane + 2’ Buffer Accommodates larger vehicles
Parking Lane 7’ – 9’BLR / BDE – 8’ min from face of curb (7’ with design exception)7’ Lane + 2’ Buffer better accommodates door zone
Bike Lane 4’ – 6’BLR / BDE – 4’ Min (5’ next to parking)Wider isn’t necessarily betterBuffer is counted in width next to parking
21
12’ 6’ = 18’
11’ 2’ 5’ = 18’
2.8’ Passing Distance
4.3’ Passing Distance
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Bikeway Tools – Arterial Streets
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South Chicago Ave - Before
South Chicago Ave - After
How to Implement - Road DietSafety Improvement for all29% Reduction in CrashesEasier to crossAllows for left turn lanesAllows for pedestrian refuge islands
Cars per day< 10K – Easy10-15K – Likely15K + Do a Study
Important for capacity:Peak Volumes DirectionalityTraffic Control
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Bikeway Tools – Arterial Streets
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Clybourn Avenue Separated Bike Lane Pilot Study• IDOT / CDOT Joint Study• Used National Guidance and
Chicago Local Experience• Evaluating Many Treatments
• Concrete Separation• Landscaping• Parking / Non Parking
Separated• Bicycle Signals• Drainage• Modal Changes
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Bikeway Tools - Intersections
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Design Challenges
• Conflicts between users• Competing needs for roadway space• Where many crashes occur• Where bikes feel uncomfortable
Goals
• Reduce Right Hook Conflict• Facilitate turns for bikes• Balance design for all modes
• Provided dedicated space for bikes• Manage vehicle turn speeds
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Bikeway Tools - Intersections
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Design Challenges
• Conflicts between users• Competing needs for roadway space• Where many crashes occur• Where bikes feel uncomfortable
Goals
• Reduce Right Hook Conflict• Facilitate turns for bikes• Balance design for all modes
• Provided dedicated space for bikes• Manage vehicle turn speeds
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Bikeway Tools – IntersectionsWhat is a right hook?
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MassDOT
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Bikeway Tools - Intersections
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Intersection MarkingsAllowable per 2009 MUTCDGuide: NACTOCost: $1,000 - $3,000 per intersection
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Bikeway Tools – Intersections
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Right Turn LaneMUTCD Part 9
Guide: MUTCDCost: $1,000 - $3,000 per intersection
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Bikeway Tools - Intersections
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Intersections up to 10 slides-§ Speed, visibility, volume, understood right of way
o Intersection Markings (not explicitly called out, but permitted per FHWA)
o Right lane right of bike lanes (MUTCD)o Signalization (Interim Approval)
o Concrete (curb extensions, truck aprons on sidewalk side of bike, concrete on travel side of bike)
§ FHWA Guidanceo Discuss should we be looking at modifications to trucks (side skirts /
cameras)Bicycle SignalsInterim Approval StatusGuide: NACTOCost: $12,000 - $20,000 per intersection
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Bikeway Tools - Intersections
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Chicago, ILProtected Intersection
Not Governed by MUTCDGuide: MassDOT, FHWA
Cost: $20K + per intersection
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Bikeway Tools - Intersections
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Manage turn speeds with geometry• Horizontal – tighten curb radius, curb extension, truck aprons• Vertical – Raised crosswalks
MassDOT MassDOTComplete Streets Coalition
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Bikeway Tools – Trail Crossings
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Niles, IL
North Branch TrailCCFPD
North Branch TrailCCFPD
Bridge
Un controlled
Un controlled
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Bikeway Tools – Trail Crossings
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Niles, ILNorth Branch Trail - Morton Grove, IL
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Bikeway Tools – Trail Crossings
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Niles, ILNorth Branch Trail - Morton Grove, ILNorth Branch Trail - Niles, IL
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Bikeway Tools – Trail Connections
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Recommendations• Locate crossings at existing signals if possible• Align with existing intersections if possible• Manage Speed of Bikes (S-Curve)• If un-signalized, need to understand crossing
conflicts • Number of Lanes• Traffic Speed / Volumes
• Unsignalized Recommendations• Provide Markings and Signage
• Crosswalks• Warning Signs• In-street Signs
• Provide Refuge Space (reduce lanes)• Add Beacons as needed (RRFB and Hawk)
DRAFT CONCEPTFOR Chicago, IL
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Bikeway Tools – Trail Crossings
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HAWK$150,000MUTCDOrchard Lake Village, MI
RRFB$20,000Interim ApprovalKalamazoo, MI