Post on 25-Mar-2018
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Lessons Learned from
Cycle Tracks (Class IV
Bikeways) Design
Practice
By: Min Zhou, P.E.,
Principal/Vice President
KOA Corporation
TYPICAL BIKEWAY CLASSIFICATION
CLASS I CLASS II CLASS III
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What is a Cycle Track (Class IV)
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BIKE BOULEVARD
• Shared roads with some preferential treatment for bicycles
• Traffic calming
• Quieter and more attractive
Pasadena Pasadena
Long Beach Vista Street Bike Boulevard
Green Street, Seattle
What is a Cycle Track (Class IV)
What is a Cycle Track (Class IV)
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Cycle tracks are bikeways located in roadway right-of-way but separated from vehicle lanes by physical barriers
Class IV - California
Legislature Approval
Exclusive Bike Facility
On-Street
Infrastructure
Physically Separated
from Motor Traffic
and from Pedestrian
Differ from Buffered
Lanes
Differ from Class I
Bikeway
Level of Traffic Stress
Cycle Track
Why Cycle Track? Who are We Planning For?
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Cycle Tracks – Current Practice Summary
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Project Features Long Beach New York City Washington D.C. Portland,
Oregon San Francisco
Left-Side Parking Yes Yes Yes Yes Yes
Buffer Zone Yes Yes No Yes Yes
Bollards/Berm Berm Bollards Bollards No No
Bike Signals Yes Yes No No No
Bike Boxes No No No Yes No
Contraflow? No No Yes No No
Reduced Traffic Lanes Yes Yes Yes Yes No
Traffic Calming Effect Yes Yes Yes Yes Yes
Pedestrian Safety
Improvements No Yes No No No
Streetscape Elements Yes Yes Yes No No
Bike Lane Left/Right Side Left Left Left Right Right
Boulder, CO
San Diego, CA
Chula Vista, CA
Santa Cruz, CA
Design Features:
Cycle Track Width
Type of Separators
Driveway Conflict
Lost of Parking Spaces
Intersection Treatments
Bike Signals
Signage
Pvement Marking
ADA
Drainages
Cycle Tracks – No Caltrans Design Guide Yet!
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8’ Parking Lane
Raised Berm
Added Bike Signal
One-Way 9’
Protected
Bikeway
5’ Buffer Zone
Sidewalk
Two 11’ Vehicle
Lanes
One Way Cycle Track – 3rd & Broadway, Long Beach
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APWA 2012 B.E.S.T. Award
1.2 miles of Cycle Tracks
for Two One-way Streets
First Cycle Track
Implemented In SoCal
Cycle Tracks – Existing Cycle Track
3rd & Broadway, Long Beach
Left turn signals delay
Cyclist cannot
back track
Delivery Trucks
Weaving
Parking
ADA
Drainage
3rd and Broadway– Issues
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Existing Typical Plan View
Alternative 1: Contra-Flow Typical Plan View
Alternative 2: Two-Way Cycle Track Typical Plan View
Cycle Tracks – Left-turn Conflicts & Sight Distance
Cycle Tracks – One Way Cycle Track
Cycle Tracks – Contra Flow
Cycle Tracks – Two Way Cycle Track
• Separate Bike/Ped and left turn phases
• Bikes approach
from behind turning vehicles
Bikes and pedestrians receive red light
Bike Left-Turn
Ped
LANE
BIKE
Bike Left-Turn
Ped
LANE
BIKE
Thru lane
Thru lane
Left turners receive red light
Cycle Tracks – Left-turn Conflicts & Sight Distance
Thru lane
• Oncoming bicyclists are more visible to drivers turning left
• Flashing yellow arrow signal provides a cue to motorists to be vigilant
• Decreased delay time for
pedestrians, cyclists, and motorists
Flashing yellow left arrow during bike & ped phase
Bike Left-Turn
Ped
LANE
BIKE
Cycle Tracks – Left-turn Conflicts & Sight Distance
Left-Turn
Thru lane
• Separate Bike/Ped and left turn phases
• Oncoming bikes are
more visible to drivers turning left, but bikes also approach from behind turning vehicles
Bike Ped Bike Ped Left-Turn
Thru lane
Bikes and pedestrians receive red light
Left turners receive red light
Cycle Tracks – Left-turn Conflicts & Sight Distance
2nd Cycle Track Implemented in Southern California
America’s 10 Best New Bike Lanes of 2014, Award by People for Bikes
Rosemead Blvd Cycle Track, Temple City
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Lost of Parking Spaces
Avoid Right Hook Collisions
Rosemead Blvd Cycle Track, Temple City
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Separated facilities for casual
riders, pedestrians, & fearless
riders;
Lower vehicle speed;
ADA compliance and signal
modification
Existing Class II bike facilities on El Camino
Real will be replaced by a combination of Class
IV and II facilities along this well-used section of
the Pacific Coast Highway
El Camino Real Two Way Cycle Track Design,
San Clemente
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Orange Grove Blvd from
Green St to Wilson Ave (2.5 Mile)
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Peak
Hour
Volume
(Veh)
Vehicular
Capacity
(Veh/Hr)
Traffic
Lanes
Daily
Hours
Over
Capacity Parking
Parking
Spaces
Parking
Loss Cost
Existing 1,310 3,200 4 0 Both
Sides 248 N/A N/A
Cycle Track 1,310 1,600 2 *0* Both
Sides 62 186 $1,779,000
Buffered Bike
Lane 1,310 1,600 2 *0*
Both
Sides 248 0 $217,000
* Thru traffic will be blocked by left turns.
(No two-way left turn lane)
Cycle Track Concept Design, Pasadena
El Centro Street Cycle Track, South Pasadena
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Existing Parking
Count 130
Proposed Parking
Count 62
Percent of Parking
Lost 52%
Santa Ana Downtown Complete Streets
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Cycle Track runs in the center of the street
on Santa Ana Blvd
Intersection Complication
Avoid Conflict with Street Car
Recap: Lesson learned from Cycle Track Design
Practice
Choose between cycle track,
buffered lanes, and bike
boulevard
Driveways
Intersections
Lost of parking spaces
Traffic capacity reduction
ADA issues with parking